成型工艺流程及条件介绍(注塑技术英语大全)范文

注塑工艺流程英文简介Injection Molding Process Flow.Injection molding is a manufacturing process for producing parts by injecting molten plastic material into a mold. It is commonly used for mass-producing plastic products such as toys, containers, and automotive parts. The process involves several key steps:1. Mold Design and Construction:The first step is to design and construct the mold. The mold consists of two halves (a cavity and a core) that come together to form the desired shape of the part. The cavity is the negative form of the part, while the core creates any internal features or holes. The mold is typically made of steel or aluminum and is designed to withstand the high pressures and temperatures involved in the injection molding process.2. Material Selection:The next step is to select the plastic material to be used. There are a wide variety of plastic materials available, each with its own unique properties and applications. Some of the most common plastic materials used in injection molding include polyethylene (PE), polypropylene (PP), polystyrene (PS), and acrylonitrile butadiene styrene (ABS).3. Material Preparation:Once the plastic material has been selected, it is prepared for injection molding. This involves drying the material to remove any moisture, which can cause defects in the molded part. The material is then typically pelletized or granulated into small, uniform particles.4. Injection Molding Machine:The injection molding machine is the equipment used to inject the molten plastic material into the mold. Themachine consists of a hopper, a heating chamber, aninjection unit, a mold clamping unit, and a cooling system.5. Injection Process:The injection process begins by feeding the plastic pellets into the hopper. The pellets are then heated in the heating chamber until they melt. The molten plastic is then injected into the mold cavity by the injection unit. The injection unit is a plunger or screw that forces the molten plastic into the mold under high pressure.6. Molding:Once the molten plastic has been injected into the mold, it is held under pressure until it cools and solidifies.The cooling time varies depending on the size andcomplexity of the part, as well as the type of plastic material used.7. Ejection:After the part has cooled and solidified, it is ejected from the mold. This is typically done using ejector pins or a knockout mechanism.8. Finishing:The ejected part may require additional finishing operations, such as trimming, sanding, or painting. These operations are typically performed to remove any imperfections or to improve the appearance of the part.Advantages of Injection Molding:High production rates and short cycle times.Ability to produce complex and intricate parts.Precision and dimensional accuracy.Wide range of material options.Cost-effective for mass production.Disadvantages of Injection Molding:High initial investment costs for mold design and construction.Limited to thermoplastic materials.Potential for defects and rejects.Environmental concerns related to plastic waste.。

连接器注塑成型工艺流程英文回答：Injection molding is a widely used process in the manufacturing of connectors. It involves several steps to produce high-quality connectors. Let me walk you through the process.Firstly, the design of the connector is created using computer-aided design (CAD) software. This allows engineers to create a 3D model of the connector, specifying its dimensions, features, and any other necessary details.Next, the mold for the connector is created. The moldis usually made from steel and consists of two halves, the cavity side, and the core side. The cavity side contains the negative shape of the connector, while the core side creates the internal features of the connector. The mold is precision machined to ensure accuracy and quality.Once the mold is ready, the injection molding machineis prepared. The machine consists of a hopper, where the plastic material is fed, and a barrel, where the materialis melted. The molten plastic is then injected into the mold cavity under high pressure. This ensures that the plastic fills the entire cavity and takes the shape of the connector.After the plastic is injected, it is allowed to cool and solidify inside the mold. This is done by either cooling the mold or using cooling channels within the mold. Once the plastic has solidified, the mold is opened, and the connector is ejected from the mold using ejector pins.The connectors are then inspected for any defects or imperfections. This can be done visually or using automated inspection systems. Any defective connectors are removed from the batch.Finally, the connectors are ready for further processing or assembly. They may undergo additional treatments such as trimming, polishing, or plating to meetspecific requirements. Once all the necessary treatmentsare done, the connectors are packaged and prepared for shipment.中文回答：连接器注塑成型是制造连接器的一种常用工艺。

注塑技术员生产流程描述英文回答：Injection molding is a manufacturing process used to produce parts by injecting molten material into a mold. As an injection molding technician, my role is to ensure the smooth operation of the entire production process.First, the raw material, typically in the form of pellets, is fed into a hopper. The pellets are then melted in a heated barrel by a rotating screw. The molten material is then injected into a mold cavity under high pressure. The mold is designed to give the desired shape and features to the final product.Once the mold is filled, the material is allowed to cool and solidify inside the mold. This is called the cooling phase. The cooling time is carefully controlled to ensure proper solidification and minimize cycle time.After the cooling phase, the mold is opened and the solidified part, also known as the molded product, is ejected. This is done either by ejector pins or by using a robot arm. The mold is then closed again, ready for the next cycle.Throughout the production process, I am responsible for monitoring and adjusting various parameters to ensure the quality of the molded parts. This includes controlling the temperature and pressure of the molten material, as well as the speed and position of the injection screw.In addition to monitoring the process, I also perform regular maintenance on the injection molding machine. This includes cleaning the barrel and screw, replacing worn-out parts, and lubricating moving components. By keeping the machine in good condition, I can prevent breakdowns and ensure smooth operation.Furthermore, I work closely with the design and engineering teams to optimize the mold and part design for efficient production. This involves analyzing the partgeometry, material properties, and production requirements to identify any potential issues or areas for improvement. By making adjustments to the mold design or process parameters, I can enhance the overall quality and productivity of the injection molding process.In conclusion, as an injection molding technician, my role is to oversee the entire production process, from material preparation to mold design optimization. By carefully monitoring and adjusting various parameters, performing regular maintenance, and collaborating with other teams, I ensure the smooth and efficient production of high-quality molded parts.中文回答：注塑技术员是负责注塑生产流程的人员，注塑是一种通过将熔融材料注入模具中来生产零件的制造工艺。

附录 1：外文翻译介绍如今塑料在日常生活中占据着极其重要的地位。

如果我们说，没有哪个领域的塑料没有不经过制造中直接到宇宙飞船的生产中，这一点也不夸张。

在19 世纪中叶，塑料开始在材料和生活中起主导作用。

耐腐蚀性是塑料甚至成为金属和提高制造生产率方面受到了很高的关注。

从塑料的紧缺，因此在塑料产品设计等各个方面发生巨大的变革,在制造加工领域还在测试阶段,现在,由于很多人最后通过体力劳动取得了卓越的成效,另外人工智能的帮助下,开发出了CAD / CAM 软件。

由于高强度的重量比，提高了化学稳定性和耐温性，具有耐热和耐腐蚀的特性，光泽性使其成为材料更好的选择。

塑料在形成过程中消耗的能量更少，并且可以被循环利用。

今天，塑料正在取代黄铜、铜、铸铁、钢铁等金属。

塑料可以根据制造方法分类，在加热时软化，在冷却时凝固。

这些被称为“热塑性塑料”，以及那些由于化学变化而变硬的物质。

这些被称为热固性或混合型塑料材料成为产品选择特殊材料是另一个重要因素。

这对于产品的确定是非常必要的。

它也应该能够承受压力。

每种材料都有自己的属性。

一些材料在高环境和耐磨性方面比较好。

困难的是找到一种合适材料，它将完全满足整个要求。

所以材料应该是通用的，它适合我们产品的所有考虑条件和要求。

在考虑了所有这些点的材料之后，必须选择合适的材料来满足所有这些条件。

注塑成型过程它是一种通过将熔融状态的物质注入模具来生产零件的生产工艺。

注射成型被用在很多领域进行生产，包括金属、眼镜、弹性体、糖果以及最常见的热塑性塑料和热固性塑料。

将材料的一部分送入一个加热的桶，混合，并用高压压入一个模腔，它是可以冷却和硬化地方。

在产品设计后，通常由工业设计师或工程师设计模具，模具由模具制造商(或工具制造商)制造，通常由金属或铝制成，并经过精密加工以形成所需的特性。

注塑成型广泛应用于制造各种零件，从最小的零件到汽车的整个车身。

零件的形状和特点、模具的所需材料，以及造型机的性能都必须考虑在内。

注塑的主要工艺流程及关键控制点英文回答：Injection molding is a widely used manufacturing process in which molten plastic is injected into a mold cavity to form a desired shape. It involves several key steps and control points to ensure the quality and efficiency of the production process.The first step in the injection molding process is the preparation of the mold. This includes designing the mold, selecting the appropriate material, and ensuring that the mold is properly cleaned and maintained. The mold design is crucial as it determines the shape and size of the final product. The material selection is also important as different plastics have different properties and processing requirements.Once the mold is prepared, the next step is the injection of the molten plastic. This is done using aninjection molding machine, which consists of a hopper, a heating barrel, and a nozzle. The plastic resin is fed into the hopper, where it is heated and melted. The molten plastic is then injected into the mold cavity through the nozzle under high pressure. The injection speed, pressure, and temperature need to be carefully controlled to ensure proper filling of the mold and to avoid defects such as voids or sink marks.After the plastic is injected into the mold, it is cooled and solidified to form the final shape. This is achieved by circulating coolant through the mold or by using cooling channels within the mold. The cooling time is an important parameter that affects the cycle time and the quality of the part. It is important to ensure that the cooling is uniform and that the part does not warp or shrink excessively during the cooling process.Once the part is cooled and solidified, it is ejected from the mold. This is done using ejector pins or plates that push the part out of the mold cavity. The ejection force and timing need to be carefully controlled to avoiddamage to the part or the mold. The ejected part is then inspected for any defects or imperfections. This may include visual inspection, dimensional measurement, or functional testing.In summary, the main steps in the injection molding process include mold preparation, plastic injection, cooling and solidification, part ejection, and inspection. Each step has its own set of key control points that need to be carefully monitored and adjusted to ensure the quality and efficiency of the production process.中文回答：注塑是一种广泛应用的制造工艺，通过将熔融塑料注入模具腔中形成所需的形状。

注塑成型加工的操作流程英文回答：Injection molding is a widely used manufacturing process in which molten material is injected into a mold cavity to form a desired shape. The process involves several steps, including mold preparation, material preparation, injection, cooling, and ejection.First, the mold preparation involves designing and creating a mold that will be used to shape the final product. This can be done using computer-aided design (CAD) software and then manufacturing the mold using CNC machining or other techniques. The mold typically consists of two halves, a core and a cavity, which come together to form the desired shape.Next, material preparation is necessary to ensure that the molten material is ready for injection. This involves selecting the appropriate material, such as thermoplasticsor thermosetting plastics, and then melting and mixing it to a specific temperature and viscosity. The material may also be reinforced with additives or fillers to enhance its properties.Once the mold and material are prepared, the injection process begins. The molten material is injected into the mold cavity under high pressure using an injection molding machine. The machine consists of a hopper, where the material is fed, a barrel, where it is heated and melted, and a screw or plunger, which pushes the molten material into the mold.After injection, the mold is cooled to solidify the material and allow it to take the shape of the mold cavity. Cooling can be achieved through various methods, such as circulating water or air around the mold. The cooling time depends on the material and the thickness of the product.Once the material has solidified, the mold is opened, and the final product is ejected. Ejection can be done using ejector pins, air blasts, or other mechanisms. Theproduct may then undergo further processing, such as trimming or surface finishing, to achieve the desired final appearance and dimensions.中文回答：注塑成型是一种广泛应用的制造工艺，其中熔融材料被注入模具腔中以形成所需的形状。

注塑成型工艺任务流程英文回答：Injection molding is a manufacturing process used to produce parts by injecting molten material into a mold cavity. It is widely used in various industries, including automotive, electronics, medical, and consumer products. The process involves several steps, each playing a crucial role in achieving the desired outcome.1. Designing the Mold: The first step in the injection molding process is to design the mold. This involves determining the shape and dimensions of the part, as well as considering factors such as material selection, mold cooling, and ejection mechanism. CAD software is commonly used to create the mold design.2. Preparing the Material: Once the mold design is finalized, the next step is to prepare the material for injection. This involves selecting the appropriate plasticresin and melting it to a liquid state. The molten material is then injected into the mold cavity under high pressure.3. Injection: The molten material is injected into the mold cavity through a gate, which is a small opening in the mold. The injection pressure and speed are carefully controlled to ensure proper filling of the cavity and to avoid defects such as air bubbles or voids.4. Cooling: After the mold cavity is filled, the material is allowed to cool and solidify. Cooling time depends on factors such as the material type and part thickness. Cooling channels within the mold help to expedite the cooling process.5. Ejection: Once the part has solidified, it is ejected from the mold. Ejection can be accomplished using various methods, such as ejector pins or air blasts. The mold is then ready for the next cycle.6. Post-Processing: After ejection, the part may require additional post-processing steps, such as trimmingexcess material or adding surface finishes. These stepshelp to achieve the final desired shape and appearance of the part.Injection molding offers several advantages, including high production efficiency, repeatability, and the abilityto produce complex shapes with tight tolerances. However,it also has its limitations, such as high initial tooling costs and limited material selection.中文回答：注塑成型是一种通过将熔融材料注入模具腔中来制造零件的制造工艺。

注塑的主要工艺流程及关键控制点英文回答：Injection molding is a widely used manufacturingprocess in which molten material is injected into a mold cavity, where it solidifies and takes the shape of the mold. This process is commonly used to produce plastic parts and products with high precision and complexity. The main steps involved in the injection molding process are as follows:1. Mold preparation: The mold, typically made of steelor aluminum, is prepared by polishing and cleaning toensure a smooth surface finish. The mold is then coatedwith a release agent to prevent the molded part fromsticking to the mold.2. Material preparation: The raw material, usually in the form of pellets or granules, is fed into a hopper and then heated to a molten state in the injection molding machine. The temperature and pressure of the moltenmaterial are carefully controlled to achieve optimal flow and viscosity.3. Injection: The molten material is injected into the mold cavity through a nozzle and runner system. The injection speed and pressure are controlled to ensure proper filling of the mold and to avoid defects such as voids or incomplete filling.4. Cooling: After the mold cavity is filled, the molten material is allowed to cool and solidify. Cooling time is an important factor in the process, as it affects the cycle time and the quality of the molded part. Cooling can be accelerated by using cooling channels or by applying external cooling methods such as air or water.5. Ejection: Once the molded part has cooled and solidified, the mold is opened and the part is ejected from the mold cavity. Ejection pins or plates are used to push the part out of the mold. Proper ejection is crucial to avoid damage to the part or the mold.6. Post-processing: After ejection, the molded part may require additional processing such as trimming, deburring, or surface finishing. These steps are performed to remove any excess material or imperfections and to achieve the desired final appearance and functionality.Key control points in the injection molding process include:1. Temperature and pressure control: Proper control of the temperature and pressure of the molten material is essential to ensure optimal flow, fill, and solidification of the part. Deviations in temperature or pressure can result in defects such as warping, sink marks, or voids.2. Mold design and maintenance: The design of the mold, including the gate location, runner system, and cooling channels, plays a critical role in the quality of the molded part. Regular maintenance of the mold is necessary to prevent wear, damage, or contamination that can affect the part quality.3. Injection speed and pressure: The injection speed and pressure need to be carefully controlled to achieve proper filling of the mold cavity without causing excessive shear or stress on the material. Improper control can lead to defects such as flow marks, flash, or short shots.4. Cooling time and uniformity: The cooling time should be optimized to ensure complete solidification of the part without causing excessive cycle time. Uniform cooling is important to avoid differential shrinkage and warping of the part.5. Ejection mechanism: The ejection system should be designed and maintained properly to ensure smooth and reliable ejection of the part without causing any damage. Improper ejection can result in part deformation orsticking to the mold.中文回答：注塑是一种广泛应用的制造工艺，其中熔融材料被注入模具腔中，然后凝固并成型。

注塑英语大全成型工艺流程及条件介绍Molding technique procedure and parameter introduction 第一节成型工艺Section 1 molding technique.1.成型工艺参数类型Sorts of molding parameter.(1).注塑参数ction parameter.a.注射量ction rate.b.计量行程Screw back positionc.余料量Cushiond.防诞量Sucking back ratee.螺杆转速Screw speedf.塑化量Plastic0 rateg.预塑背压Screw back pressureh.注射压力和保压压力ction pressure and holding pressurei.注射速度ction speed(2)合模参数Clamping parametera.合模力 Clamping forceb.合模速度Clamping speedc.合模行程.Clamping stroked.开模力Opening forcee.开模速度Opening speedf.开模行程Opening positiong.顶出压力Ejector advance pressureh.顶出速度Ejector advance speedi.顶出行程Ejector advance position2.温控参数Temperature parametera.烘料温度Dry resin material temperatureb.料向与喷嘴温度Cylinder temperature and nozzle temperaturec.模具温度Mold temperatured.油温Oil temperature3.成型周期Molding cyclea.循环周期Cycle timeb.冷却时间Cool timec.注射时间ction timed.保压时间Holding pressure timee.塑化时间Plant timef.顶出及停留时间Knocking out and delay timeg.低压保护时间Mold protect time成型工艺参数的设定须根据产品的不同设置.Molding technique parameter setting differs depending on type of product第二节成型条件设定Section 2 Molding parameter Setting按成型步骤:可分为开锁模,加热,射出,顶出四个过程.Molding steps: mold opening/closing, heating ction and knocking out.开锁模条件:Mold opening parameter:快速段中速度低压高压速度High-speedmid-speedLow pressure high pressure speed锁模条件设定:Mold closing parameter setting1锁模一般分:快速→中速→低压→高压Mold closing: high-speed →low-speed →low pressure→high pressure2.快锁模一般按模具情况分,如果是平面二板模具,快速锁模段可用较快速度,甚至于用到特快,当用到一般快速时,速度设到55-75%,完全平面模可设定到80-90%,如果用到特快就只能设定在45-55%,压力则可设定于50-75%,位置段视产品的深浅(或长短)不同,一般是开模宽度的1/3.In high-speed section, Mold closing speed depends on type of mold. For two –plate mold it can set quick and even especially quick usually, it set speed within 55-75%. For full-plate mold it set speed within80-90% while using especially high speed it set speed within 45-55% and pressure within 50-75% position distance setting differs depending on the volume of product and usually it can be set 1/3 of mold opening position.3.中速段,在快速段结束后即转换成中速,中速的位置一般是到模板(包括三板模,二板模)合在一块为止,具体长度应视模板板间隔,速度一般设置在30%-50%间,压力则是20%-45%间.In mid-speed section: Mold closing speed changes into mid-speed after high-speed section finish.Mid-speed start position is where two plates meet (include three-plate mold and two-plate mold ) Distance of mid-speed is up to distance of two plates plate it speed within 30-50% and pressure 20-45%.4.低压设定,低速设定一般是在模板接触的一瞬间,具体位置就设在机台显示屏显示的一瞬间的数字为准,这个数字一般是以这点为标准,,即于此点则起不了高压,高于此点则大,轻易起高压.设定的速度一般是15%-25%,视乎不同机种而定,压力一般设定于1-2%,有些机则可设于5-15%,也是视乎不同机种不同.Low-pressure section: Mold closing sets low-pressure when plates meeting. This position is set to the data of machine screen on this time. This point is the gage of the data. Data lower the point there is no high-pressure. Data higher the point there is high-pressure easily. It set speed within 15-25% and pressure within 1-2% depending on type within 1-2% depending on type of ction molding machine.5.高压设定,按一般机台而言,高压位置机台在出厂时都已作了设定,相对来讲,是不可以随便更改的,比如震雄机在50P.速度相对低压略高,大约在30-35%左右,而压力则视乎模具而定,可在55-85%中取,比如完全平面之新模,模具排气良好,甚至于设在55%即可,如果是滑块较多,原来生产时毛边也较多,甚至于可设在90%还略显不足.High-pressure section: To normal ction molding machine, high-pressure position had been set before they were sent to customer. It can not be modified. For example high-pressure position of CHENHSONG machine is 50P.The speed of high-pressure section is about 30-35% and higher than that of low-pressure. The pressure is up to mold, it can set within 55-85% For full-plate mold, it’s eject air well, it can set pressure 55% .If mold has a lot of slides and flash rate high in production, pressure can set 90%.加热工艺条件设定Heating technique parameter setting1.加热段温度设定必须按照产品所使用的原料的不同而不同,但却必须遵循一个这样的规则,即由射口筒到进科段温度是逐步递减的.且递减温度是以10.度为单位.The proper temperature setting differs depending on type of resin material, but it must be abide by a rule that temperature setting should diminish in step 10.C from nozzle to feeding resin material position.2特殊情况下.如料头抽丝,则射口筒温度应降低,如果是比较特殊的原料冷凝比较快的.则射口筒温度则不止比第二节法兰温度高10度.比如PPS.尼龙等.Nozzle temperature setting should low if product line. If resin material such asPPS, PA, cool very soon , Nozzle temperature should higher more 10.C than the second cylinder temperature.3.机台马达启动温度视乎机台不同而不同,一般出于对机台油路中的油封保护需要,油温最好能控制在40度-60度,以免油封长期高压而变化,缩短使用寿命,造成成型不稳定.Pump turning on temperature is different depending on type of ction molding machine. To protect oil seal of machine it set oil temperature within 40.C-60.C, If oil seal work on condition that high pressure and damaged It’s work time will be shorter, it can cause molding stable.第三节注射及熔胶(加料)工艺条件设定ction and plastic Technique parameter setting一.注射ction第四节常见塑料原料的有关温度值.原料Resin名称Name熔点℃Melt’s成型温度℃Molding Temperature(’c)分解温度℃Decomposing Temperature(‘C)模具温度℃Mold Temperature(‘c)干燥温度℃Resin d ry temperature(‘c)注射是把塑料原料经加热后射进模腔的过程,它一般可分为第一级,第二级,第三级,第四级及保压几段:ction is a step which ct melt resin material into mold. It consists of stepl,step2 ,step3,step4 and holding pressure step:1.第一级注射一般是注射料头段.具注射量一般可根据料头的轻重来估计其行程,当然也可以依据公式来计算,如公式:Step l cts usually tunnel material, ction V olume can be estimated according to the weight of course it can be calculated by formula:L=Si=Vi/0.785Ds2L:注射行程; Si:注射行程;L: ction stroke Si: ction strokeVi:理论注射容积; Ds:螺杆直径;Vi: ction volume of theoretical Ds: diameter of screw0.785:是Ω/4的值.0. 785: value ofΩ/4.当然,如果我们在成型时每设定一个参数都要计算一次,要成型出一个产品就要几个小时才能完成了.But it cost a lot of time to produce one product if every time molding parameter is setting by calculation.2.第二级是注塑产品约2/3的阶段,当然,根据产品特殊需要,也允许成型不到2/3阶段,比如避免结合线问题,这一阶段的成型速度及压力一般是整个成型段的最大值段,如果排的产品与机台基本是相吻合的.模具结构合理,排气良好,这一段的压力一般也不会超过80%.速度侧视产品需变,可能大到95%也可,自然一般都是在55%-80%间.Step 2 ct 2/3 of product. It can lower 2/3 of product according to requirement of product. For example to prevent weld line. Molding speed and pressure on this step is the maximum of whole molding section. If Mold suit the ction molding machine and mold structure reasonable and eject air well, pressure of this step should lower 80%. Molding speed setting within 55-80% but it may setting 95% for especial product.3.第三段是注射余下的1/3段,其速度和压力根据产品的需要,一般是小于第二段,速度和压力存在于一个往下降的过程.主要是为了防止产品毛边的产生,但同时又必须把产品充填饱满.Step3 ct remain 1/3 of product. According to product molding speed and pressure lower than that of step2 To prevent flash speed and pressure should decrease but it can’t shot short.4.第四段:一般有机台还有第五,第六段,这段的成型速度和压力相同前,都存在两段一个递减过程.其作用都是起到一个再次充满的作用.Step4 section: Some ction machines have step5,step6 which are same as former molding speed and pressure this step should diminish and ct once more.5.保压段:不论成型什么产品,都存在一个保压过程.任何产品都不同程度的存在一个厚薄不一的问题,正常情况下,较厚的部分都可能存在一个收缩凹陷的现象,为了解决这种现象,就应应用到保压,保压一般来讲都应用较慢的射速,而压力的设置则应看缩水的情况如何,小到25%,大到80%都有可能.Holding pressure step: No matter what product there is a holding pressure step. Any product can’t molding a same thickness. Usually the deeper section may sink mark . To prevent this defect it should set holding pressure, The ction speed of holding pressure step is slow but holding pressure setting within 25-80% depending on sink mark.二.熔胶段工艺Plastic Technique1.再复杂的熔胶旋转过程最多不会超过三段,因为熔胶本身就是存在于把胶熔进料筒的过程,如果原料粘度大,熔胶压力则大,但速度则应取决于原料的分解温度,熔胶速度越快,原料中的剪切力则会越大,料管温度则越高,局部原料产生分解的可能性则会越大,故一般熔胶会采用中速为宜,如45%-75%,熔胶同时会碰到一个比较重要的环节,那就是背压的使用,产品精度要求越大,背压的使用则更大,背压可使原料分子间结构更紧密,成型出的产品则尺寸更稳定,外观越好.当然,背压太大,则会产生流涎,所以背压的使用又应考虙到其它原因.Plastic should lower 3 steps, because plastic is a step to add melt resin material to cyclinder , Higher stick of resin material ,higher screw back pressure. Screw speed differs depending on decomposing temperature of resin material ,Higher screw speed ,Higher trim force of resin, higher cyclinder temperature. Some resin material may decomposes so it set screw speed in mid-speed such as 45-75%, In plastic step setting screw back pressure is very important, Higher screw back pressure ,higher quality of product screw back pressure make resin structure order, Molding product is beautiful and volume stable. But ,it maybe flow if screw back pressure too high . So all factors should be considered when using screw back pressure.2.熔胶过程还有一个比较重要的环节,那就是松退,松退分前松退和后松退,其作用一般是为了防止流涎和抽丝,设定值速度和压力都在20%-50%间,设定的行程一般在2-5cm间,太长的行程可能会使料筒里面贮存空气,导致下一模出现不期望的气泡.In plastic step sucking back is very important too. Sucking back include front sucking back and back sucking back It setting sucking back to prevent flow and line. It sets sucking back speed and pressure within 20-50% and distance within 2-5cm. TOO long distance make cyclinder reserve air and cause bubble at next molding.顶出的工艺设定knocking out technique setting产品经冷却定型后则有一个开模的过程,开模基本上是合模的反过程.开模的未段则有一个慢速设置,开模完成后,产品必须顶出的过程.There is a mold opening step after product cooling taking shape. Mold opening is a reverse step of mold closing. The last step of mold opening speed set slow. Product should be knocked out after mold opened.一.顶前:Knocking out顶前最好分两个阶级,第一阶可分为中压慢速,即是把产品轻轻顶出一部分,然后是中压中速顶,中压中速一般指的是35%-55%,而低速则有可能低到5%,这需视产品不同而言,顶出行程设定是顶出长度稍比产品垂直深度大1-2cm即可.Knocking out includes two steps, Step1 section setting mid-speed, knocks product out partly step2 section setting mid-pressure and mid-speed . Depending on different product, mid-pressure and mid-speed sets within 35-55% but low-speed can set 5%. Distance of knocking out longer 1-2cm than the vertical thickness of product.二.退针Back顶退包括两个过程与顶落的过程基本一致,顶退的终点应预留1-3cm的空间,以保护顶针油管不被顶坏.The same as knocking out, ejector back includes 2 steps. To protect the ejector oil jar, it should make a 1-3mm distance in the ending point of ejector back.三.顶针方式还包括一个多次顶,单次顶及顶针停留的选择,机械手取产品,脱模顺利的情况都采取多项,为了顶针油缸寿命的延长,多次顶就以不超过三次为宜,顶针停留一般用在顶针带着产品退回有可能对增品产生损伤的模具,同时为配合机械手使用,有时也需要较短的顶针停留.The way of knocking out includes knocking out once, Knocking out repeat and ejector delay. Take product by manipulator or take product easy, it should select knocking out once. To longer the work time of ejector oiljar, times of knocking out lower 3 times. Ejector delay used when product will be damaged if ejector back or suit manipulator.成型时间的设定Molding time setting在保证产品质量的前提下,周期时间是越短越好,周期时间又包括如下几项:射胶时间,保压时间,熔胶时间,冷却时间,顶出时间,锁模低压时间,甚至乎关系到时间因素的还有还开模与锁模,及顶出的快慢.Cycle time should shorter on condition that product quality well. Cycle time includes: ction time , holding pressure time, plastic time, cure time, knocking out time and mold protect time. Even mold opening closing sopeed and knocking out speed affect cycle.1.射胶时间包含保压时间,一般看起来,射胶时间越长,产品越饱和,但我们在讲求质量时,同时也须考虑产能,更何况,射胶时间过长,有可能会造成产品过于饱满而寻致粘模顶的变形呎寸偏大等一系列问题,故我们在设置射胶时间时应综合考虑,尽量在合乎质量要求时缩短射胶时间.ction time consists holding pressure time. Longer ction time, fuller product, we should consider production quantity when we suit for quality. If ction time too long, it may cause a series of defects suck as flash strain. So all sorts of factors should be considered, ction time should be shout if quality suit for requirement.2.熔胶时间的长短取决于熔胶速度设定的快慢,背压设定的大小,但有一点,熔胶时间控制的长短一定要比冷却时间短.Plastic time depends on plastic speed and screw back pressure, but plastic time must shorter than cure time.3.冷却时间:冷却时间的长短直接影响到成型的周期,冷却时间越长,成型时间就越长,造成产能就越低,故我们在设定高压冷却时间时,只要能保证到产品成型顺利,不会直接影响到变形等问题,设定的时间也是越短越好.Cure time: Cure time affects molding cycle. Longer cure time, longer molding cycle, lower production quantity. So it sets cure time short on condition that product molding succed and can’t deformation..4.在大量使用机械手的塑胶公司,我们的顶出时间一般是与机械手配合为宜,全自动使用机械手时顶出停留时间一般保持1.5-2秒,半自动生产,如因顶针退回会导致产品掉落或卡紧,而取不下产品,停留时间则应保持5秒左右.In PCE company, for using manipulator in abundence , knocking out time suits manipulator, Knocking out delay keeps 1.5-2 second when using manipulator full-manipulator, knocking out delay keeps about 5 second when using manipulator semi-manipulator and product will fall or can’t be taken off if ejector back.5.低压保护时间对保护我们人身安全,模具安全起很大作用,配合好模具低压位置和低压压力的调整,低压保护的时间应取1-3秒,保护时间越短,可能造成的危害则越小.Low-pressure protect is very important for safety and protect mold, Mold protect time should adjust within 1-3 second suit low pressure and position of mold protect, shorter protect time, make damaged。

塑料注射成型机的工艺流程英文回答：Plastic injection molding is a manufacturing process used to produce a wide range of plastic parts and products. It involves injecting molten plastic material into a mold cavity, where it cools and solidifies to form the desired shape. The process typically consists of several steps, including mold preparation, material preparation, injection, cooling, and ejection.The first step in the process is mold preparation. This involves designing and creating a mold that will be used to shape the plastic material. The mold is typically made from metal and consists of two halves that fit together. It includes cavities and channels that allow the plastic material to flow and cool properly. The mold must be carefully designed to ensure that the final product meets the desired specifications.After the mold is prepared, the next step is material preparation. This involves selecting the appropriateplastic material and melting it down to a liquid state. The plastic material is typically in the form of pellets or granules, which are fed into a hopper. The material is then heated and melted in a barrel using a combination of heat and pressure. Once the material is fully melted, it is ready for injection.The injection step is where the melted plastic material is injected into the mold cavity. This is achieved by a reciprocating screw or plunger that pushes the molten plastic material through a nozzle and into the mold. The material fills the mold cavity and takes on its shape. The injection pressure and speed are carefully controlled to ensure that the material flows properly and fills the mold completely.After the injection, the mold is cooled to allow the plastic material to solidify. Cooling can be achieved through a variety of methods, such as circulating water or air around the mold. The cooling time depends on thethickness of the part and the type of plastic material used. Once the material has cooled and solidified, the mold canbe opened and the part can be ejected.The final step in the process is ejection. The mold halves are separated, and the part is pushed or ejected out of the mold cavity. Ejection can be done using ejector pins, air blasts, or other mechanisms. The part is then inspected for quality and any necessary finishing or post-processing steps are performed.Plastic injection molding offers several advantages, including the ability to produce complex shapes, high production rates, and consistent part quality. It is widely used in various industries, such as automotive, electronics, packaging, and consumer goods.中文回答：塑料注射成型是一种用于生产各种塑料零件和产品的制造工艺。