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大众汽车集团标准 TL 2442010年12月版分类号：50223关键字：锌，镍，钝化处理，密封，无Cr(VI)，防腐蚀，表面保护锌/镍-合金涂覆层表面保护要求旧版本TL 244: 1987-10, 1992-05, 1993-11, 1995-12, 2002-05, 2004-12, 2006-08, 2007-02变更相对于 TL244： 2007-02 版本，作了如下更改：--补充了热处理后零件的抗拉强度≦ 1200Mpa 部分；--添加了 Ofl-r647 和 Ofl-r648 两种涂覆方法；--原表 2 中关于含铬的表面保护类型已删除；--添加了图 1 和图 2；--添加了 PV 1209,PV 1200 和 PV1210 三种测试依据；--镀层表面形态的要求有所增加；--镍的上限值有所改变；--原第 4 条关于镀层厚度的测量的内容加入到 3.9 部分；--原 3.11 部分的要求有所改变；--参考标准有更新；--标准重组。
1 范围本标准规定了抗拉强度为 Rm≦ 1000Mpa（按 VW 137 50 的特征字母 r）的铁材料和钢制件上的电解离析和无Cr（ VI）后处理的锌/镍合金涂覆层的要求。
此外还定义了抗拉强度值大于 1000Mpa时的应用极限。
本标准定义了合金涂覆不适用于抗拉强度 Rm>1200Mpa 和表面硬度>370HV 的钢制件。
而且适用于抗拉强度值在 1000Mpa 和 1200Mpa之间的钢制件时，必须按 DIN EN ISO 4042 作热处理。
这些当作坚固防腐层（稳定等级为 6）的涂覆层，亦特别适用于除了腐蚀负荷增加和温度负荷增加至150°C（例如：发动机室和刹车系统）之外的部件以及螺栓拧紧系统。
银色涂覆层（例如：Ofl-r642,Ofl-r643,Ofl-r645和Ofl-r647）特别适用于导线连接（接地线连接）。
这些涂覆层特别适用于内部传动的紧固元件，以避免附加的施力作用。
大众汽车标准_TL82502-1Vertragspartner erhalten die Norm nur über die zust?ndigeBeschaffungsabteilung.Confidential. All rights reserved. No part of this document may be transmitted or reproduced without the prior written permission of a Standards Department of the Volkswagen Group.Parties to a contract can only obtain this standard via the responsible procurement department.VOLKSWAGEN AGN o r m v o r A n w e n d u n g a u f A k t u a l i t ?t p r üf e n / C h e c k s t a n d a r d f o r c u r r e n t i s s u e p r i o r t o u s a g e .T h e E n g l i s h t r a n s l a t i o n i s b e l i e v e d t o b e a c c u r a t e . I n c a s e o f d i s c r e p a n c i e s t h e G e r m a n v e r s i o n s h a l l g o v e r n .Q U E L L E : N O L I SDecember 1995Restraint SystemLV 107Seat Belt Vertical AdjustmentRequirements and TestsRestraint system – belt adjustment – requirements and test proceduresPrevious issueAK-LV 13: 1994-12Changes as compared to the 1994:12 issueDocument renumbered and revised without changing the technical contents.Contents1Scope and aim2Normative references3Definitions4General5Requirements and testsA Appendix1 Scope and aimThis specification is meant to ensure that seat belt vertical adjustments installed in standard produc-tion meet the same level of quality as the design tested sample and meet the requirements of the respective national regulations.2 Normative referencesADR 3/02Seat AnchoringADR 4/02Seat BeltsADR 5/03Seat Belt AnchoringASTM B 117 -73 Salt Spray (Fog) TestingECE-R16Seat Belts and Restraint Systems for Motor Vehicles ECE-R 21Uniform Conditions for the Approval of Vehicleswith Regard to Their Interior Trim and ComponentsEG 74/60Vehicle Interior Trim and Components, Parts in the Passenger Compartment EG 76/115Seat Belt Anchoring EG 77/541Seat Belts and Restraint Systems for Motor VehiclesFMVSS 571.210 Seat Belt Assembly AnchoragesLV 104Restraint System; Seat Belt Retractor; Requirements and TestsLV 105Restraint System; Belt; Requirements and TestsLV 106Restraint System; Seat-Belt T ensioner; Requirements and TestsLV 108Restraint System; Seat Belt Buckle, Seat Belt Connector; Requirements andTestsLV 109Restraint System; Gas Generator for Seat-BeltTensioner; Requirements and Tests3 DefinitionsThe seat belt vertical adjustment is a fitting part. All parts of the seat belt system, including locking parts and retractors, which are fastened directly to vehicle parts are considered fitting parts.Continued on pages 2 to 9 LV : Team - Supply Specifications Team of Companies: Audi AG, Bayerische Motoren Werke AG, DaimlerChrysler AG, Porsche AG und Volkswagen AG LV 107 December 1995 Page 24 General4.1 General requirementsThe seat belt vertical adjustment shall have a bottom and a top limit stop. The top and bottom latching position shall also be the final position of the adjusting slide.4.2 DimensionsFor details, see the seat belt vertical adjustment ASSY drawing.4.3 RegistrationThe requirements acc. to EEC 74/60 and ECE-R21 apply in principle.The manufacturer of the seat belt vertical adjustment is responsible for obtaining general type a p-proval and possible cross and mixed registrations at a testing institute authorized for acceptance and for securing the registration in the individual countries.This LV (supply specification) does not relieve the manufacturer from the mandatory documentation of the design test in the specific country acc. to the corresponding specification and the obligation for documentation.5 Requirements and testsThe tests shall be performed in the same sequence as the section numbering. Deviations from this sequence are impermissible.In the unused condition and after the endurance test (section 5.5), the parts shall be rattle-free in driving operation and on the test stand.5.1 ConditioningUnless otherwise indicated, the specimens shall be conditioned for at least 24 h prior to testing at (23 ± 2)° C and (60 +7)% relative humidity.5.2 Corrosion resistance (metal parts in the ASSY)After the corrosion test, the function shall still be fully ensured. Slight corrosion that does not impair the function is permissible with consultation, except in the area adjacent to the body.Testing Salt spray fog test acc. to ASTM B 117-73Number of devices under test (DUT)10 ASSY partsTest setup as-installed position in the vehicleTest duration24 h (for parts not mounted on the floor)LV 107 December 1995 Page 3 5.3 Temperature resistance (non-metal parts in the ASSY)The requirements of this specification shall still be properly fulfilled after testing.In addition, at parts temperatures between -40° C and 85° C, the function and adjustability of the complete lock shall remain intact when the vertical adjustment is operated five times over the entire adjustment range within two minutes of reaching the parts temperature.Requirements similar to ADR 4.02, section 4.7.3.3, with changes.The test shall be performed without interruption acc. to table 1. Temperature gradient to the next aging temperature: 1 K/minTable 1. Temperature, duration and relative humidity in aging Aging temperature°C Aging periodhRelative humidity%80–524= 9080–524< 1523–524100+560–5623–56100+560–5623–56100+560–5623–56–40±2245.4 Adjustment force, manual seat belt vertical adjustmentAdditional lubricants may be used to reduce the adjustment force as long as they do not come in contact with the hands or the belt during assembly or operation.Testing in as-received condition and after endurance test (section 5.5) at RT with no vehicle-specific trim panels and without actuating elements:Preload F V = 8NTest regulation see fig. 1Prior to testing, the SBA shall be adjusted 20 times over the entire adjustment range.5.4.1 Basic designUnlocking direction anyUnlocking and/or adjustment force F = 30N5.4.2 Comfort designThe unlocking direction shall be the same as the adjustment direction.The individual latching positions shall be audible or otherwise perceptible.a) Adjustment with force F B from top to bottom only-from any latching position F B = (5 to 13) N-between the latching positions F B = (5 to 10) NLV 107 December 1995 Page 4b) Adjustment with force F T from bottom to top only-from any latching position F T = (2 to 23) N-between the latching positions F T = (2 to 13) Nc) Additional requirementWith a preload of F V = 60 N acc. to fig. 1, unlocking shall be possible with F T = 50 N.Fig. 1. Test regulation for adjustment force5.5 Endurance test and wear characteristicsNo impairment of function after testing.The adjustment forces shall fulfill the requirements in sections 5.4.1 and 5.4.2.Test setup as-installed position in vehicle (or belt 45° in space) without vehicle-specific trim panels andwithout actuating elementsPreload F V = 8NAdjustment speed(5 to 10) adjustment cycles/min1 adjustment cycle consists of: adjustment from the bottom latch to the top and back, locking ineach latching position. A fixed sequence according to the kinematicmechanism of the locking system, which provides maximum loadto the system is also possible.a) Start of endurance testingNumber of adjustment cycles3,000 at room temperatureb) Dust exposureAfter the dust test, the SBA shall lock securely in each latching position.Test stand acc. to ADR 4.02Test setup as-installed position in vehiclewith vehicle-specific trim panel and withactuating elementsDust acc. to EG 77/541Test duration 5 h, dust swirl for 5 s every 20 min. After every dust swirl, runthrough 10 adjustment cycles within (1 to 2) min.c) Continuation of the endurance testNumber of adjustment cycles at room temperature3,000Number of adjustment cycles at -20° C1,000Number of adjustment cycles at 65° C and 95% relative humidity1,000LV 107 December 1995 Page 5d) Vibration loadAfter the vibration load, the SBA shall lock securely in each latching position.Test setup SBA with guide mount (see fig. 2)Preload F V = 8 N, parallel and opposite to direction (1) in fig. 2Vibration form sinusoidalAccelerationand frequency see table 2Frequency change 1 Hz/sDirections of vibration1, 2 and 3 acc. to fig. 2Test duration per direction8hTable 2. Acceleration and frequency of the vibration loadsVibration directions123AccelerationgFrequencyHzAccelerationgFrequencyHzAccelerationgFrequencyHz3.7514 to 25 3.2514 to 23 2.5014 to 252.4025 to 40 2.5023 to 25 2.2525 to 384.2540 to 50 1.7525 to 40 3.7538 to 40–– 2.7540 to 43 4.9040 to 50–– 3.7543 to 48––Fig. 2. Test regulation for vibration load5.6 NoiseIn the unused condition and after the wear test (section 5.5), the parts shall be rattle-free in driving operation and on the test stand.Test duration= 30minTest frequency(0 to 30)HzAmplitude(0 to 2)HzDirections of vibration1, 2 and 3 acc. to fig. 2LV 107 December 1995 Page 65.7 Mounting characteristicsNo impairment of function when the attachment screw or fixing nut of the guide mount is tightened with 60 Nm.5.8 Static strength testThere shall be proof of sufficient strength in all adjustable latching positions and at the bottom stop.5.8.1 Static tensile test on the single partPermissible deformation f = 10 mm in direction of force F.The SBA shall meet the required strength under all angle combinations in table 3. In addition, the requirements for all other angle combinations that are critical for the SBA apply.Test regulation see fig. 3Belt data breaking load= 35 kNElongation at 11 kN8%Test rate75 mm/minMinimum breaking force acc. to F - 3s F =13.0 kN, applies to any latching position and at thebottom stopTable 3. Angle combinationsAnglea??55°30°13°110°73°13°75°55°13°Measurement F stat./dyn.Dimensions in mmRigid base plate with no permanent deformation under test conditionsFig. 3. Force directions for static and dynamic strength tests5.8.2 Static tensile testTest of the belt anchoring points acc. to EG 76/115, FMVSS 571.210, ADR 3/02 and ADR 5/03No component breakage with a suspension load of 16.4 kN in the shoulder and lap belt parts.LV 107 December 1995 Page 7 5.9 Dynamic testsFor a combination SBA with seat-belt tensioner (automatic tensioner or buckle tensioner), the d y-namic tests shall beperformed with tensioners, trim panel parts and actuating elements of the SBA.Tensioner data acc. to LV 106 "Seat-Belt Tensioner".There shall be proof of sufficient strength in all latching positions.For intermediate positions, latching in the next latching position shall be ensured.Intermediate positions are defined as:Locking mechanism 2 mm below the original latching position or the position critical for the locking system.The bottom limit stop shall be able to hold the unlocked slide of the SBA from any possible setting.5.9.1 Tests in intermediate position (tensioner suitability)5.9.1.1 Static testsTensioner with load limit generator (= maximum filling acc. to the manufacturer tolerances).Gas generator temperature directly before detonation set to maximum permissible pressure pulse range.5.9.1.1.1 SBA in connection with automatic tensionerTest setup acc. to fig. 4A SBAS Trim panel with actuating elementsD Automatic tensioner 500+ -50 mm belt on spoolDimensions in mmFig. 4. Test regulation for SBA with automatic tensioner5.9.1.1.2 SBA in connection with buckle tensionerTest setup acc. to fig. 5A SBAS Trim panel with actuating elementD Buckle tensionerDimensions in mmFig. 5. Test regulation for SBA with buckle tensionerLV 107 December 1995 Page 85.9.1.1.3 Slide testThe test shall be performed acc. to ECE-R16 with the following revisions (see fig. 6):-50% TNO dummy, 75 kg-v desired = (56.1 + 1) km/h-36g <= a max < = 40g-G' (a = 40g : t = 18 ms)-H' (a = 40g : t = 55 ms)-Tensioner detonation time t1 electrically detonated seat-belt tensioner: (7 ± 2) ms after t0 (t1 = detonation s ignal) Fig. 6. Deceleration time curve of the slide5.9.2 Test in latched position5.9.2.1 Slide test acc. to section 5.9.1.1.35.9.3 Test in intermediate latching position5.9.3.1 Slide test acc. to section 5.9.1.1.35.9.4 Additional lock testThe SBA shall be designed so that no destruction or unlocking (except upward) occurs for accel-erations "a" up to 50 g over a time of 10 ms in all directions *) due to the component inertia force. The test shall be performed with guide mounted in as-installed position.*)For acceleration in the y direction (= cross vehicle axis) the part shall unlatch in the next lower position when unlocked.LV 107 December 1995 Page 9A AppendixA.1Appendix 1For information on packaging space and assembly see fig. 7Hole for upper mounting on bodyInternal threads for mounting belt guideM10x1 or M10x1.25 or 7/16"-20 fine-pitch thread Belt guide (not included in SBA)max. 45 mmAdjustment range 92 mm with 5 latching positions SBA shall be designed so that an adjustmentrange of 69 mm is also possiblewhen omitting or blocking a latchSurface protection cathodic dip paint black3 pairs of hooks for application of force in bodyTrim attachable if needede.g., for versions with guide beneath trim panel max. 30 mmmax. 20 mmmax. 18 mmDimensions in mmFig. 7.Belt vertical adjustment, dimensioned schematic。
大众汽车集团标准TL 2442010年12月版分类号：50223关键字：锌，镍，钝化处理，密封，无Cr(VI)，防腐蚀，表面保护锌/镍-合金涂覆层表面保护要求旧版本TL 244: 1987-10, 1992-05, 1993-11, 1995-12, 2002-05, 2004-12, 2006-08, 2007-02变更相对于 TL244： 2007-02 版本，作了如下更改：--补充了热处理后零件的抗拉强度≦ 1200Mpa 部分；--添加了 Ofl-r647 和 Ofl-r648 两种涂覆方法；--原表 2 中关于含铬的表面保护类型已删除；--添加了图 1 和图 2；--添加了 PV 1209,PV 1200 和 PV1210 三种测试依据；--镀层表面形态的要求有所增加；--镍的上限值有所改变；--原第 4 条关于镀层厚度的测量的内容加入到部分；--原部分的要求有所改变；--参考标准有更新；--标准重组。
1 范围本标准规定了抗拉强度为 Rm≦ 1000Mpa（按 VW 137 50 的特征字母 r）的铁材料和钢制件上的电解离析和无Cr（ VI）后处理的锌/镍合金涂覆层的要求。
此外还定义了抗拉强度值大于 1000Mpa时的应用极限。
本标准定义了合金涂覆不适用于抗拉强度 Rm>1200Mpa 和表面硬度>370HV 的钢制件。
而且适用于抗拉强度值在 1000Mpa 和 1200Mpa之间的钢制件时，必须按 DIN EN ISO4042 作热处理。
这些当作坚固防腐层（稳定等级为 6）的涂覆层，亦特别适用于除了腐蚀负荷增加和温度负荷增加至150°C（例如：发动机室和刹车系统）之外的部件以及螺栓拧紧系统。
银色涂覆层（例如：Ofl-r642,Ofl-r643,Ofl-r645和Ofl-r647）特别适用于导线连接（接地线连接）。
这些涂覆层特别适用于内部传动的紧固元件，以避免附加的施力作用。
Q U E L L E : N O L I SSeite 2TL 524 86: 2004-123.4 KennzeichnungNach Zeichnung.3.5 Auswertung der MessergebnisseDie geforderten Zahlenwerte gelten für jede Einzelmessung.3.6 AufbauVon innen nach außen:─Elastomer─Gestrick─Elastomer3.7 WerkstoffVon innen nach außen:─Polyethylen-Acrylat-Elastomer (AEM)─Aromatisches Polyamid─Polyethylen-Acrylat-Elastomer (AEM)3.8 Glührückstandin%Innen- und Außenlage nach Muster; Toleranzen nach VDA 675 130.4 EigenschaftenSiehe Abschnitt 5.1 und Tabelle 1.Tabelle 1Nr. Eigenschaft Einheit AnforderungInnenlage Außenlage 1 Dichte nach DIN EN ISO 1183-1 g/cm3 nachMuster 2 Härte nach DIN 535052.1 Anlieferung ShoreA 70 ± 52.2 nachWärmelagerungsiehe Abschnitt 5.294 h bei +160 °C Shore A 0 bis +8 gegenüber Anlieferung504 h bei +160 °C Shore A 0 bis +15 gegenüber Anlieferung2.3 nachMotorenöllagerung siehe Abschnitt 5.3 Shore A +10 gegenüberAnlieferung-2.4 nachDieselkraftstofflagerung siehe Abschnitt 5.4 Shore A - 0 bis -25 gegenüberAnlieferung3 Gewichtsänderung3.1 nachMotorenöllagerungsiehe Abschnitt 5.3% -2 bis +12 -3.2 nachDieselkraftstofflagerung siehe Abschnitt 5.4 % - 0 bis +35 gegenüberAnlieferungSeite 3TL 524 86: 2004-12 Nr. Eigenschaft Einheit AnforderungInnenlage Außenlage 4 Zugfestigkeit nach DIN 535044.1 Anlieferung N/mm2≥ 12,04.2 nachWärmelagerungsiehe Abschnitt 5.294 h bei +160 °C N/mm2≥ 12,0504 h bei +160 °C N/mm2≥ 12,04.3 nachMotorenöllagerungsiehe Abschnitt 5.3N/mm2≥ 12,0 -4.4 nachDieselkraftstofflagerungsiehe Abschnitt 5.4N/mm2 - ≥ 8,05 Reißdehnung nach DIN 535045.1 Anlieferung % 200 bis 4005.2 nachWärmelagerungsiehe Abschnitt 5.294 h bei +160 °C % ≥ 200504 h bei +160 °C % ≥ 1505.3 nachMotorenöllagerungsiehe Abschnitt 5.3% ≥ 2005.4 nachDieselkraftstofflagerungsiehe Abschnitt 5.4% - ≥ 1506 Bleibende Verformung nach PV 330794 h bei +120 °C % ≤ 807 Weiterreißwiderstand nach DIN ISO 34-1, Methode A7.1 Anlieferung N/mm ≥ 5,07.2 nachWärmelagerungsiehe Abschnitt 5.294 h bei +160 °CN/mm ≥ 5,07.3 nachMotorenöllagerungsiehe Abschnitt 5.3N/mm ≥ 3,0 -8 Kälteverhalten nach VW 2.8.122 h bei -35 °C keinBruch9 Korrosionswirkung auf Kupfer nachVDA 675 241max. Stufe 2 zulässig10 Ozonbeständigkeit nach VW 2.8.1Knickbeanspruchung10.1 Anlieferung rissfrei10.2 nachWärmelagerungsiehe Abschnitt 5.2rissfrei10.3 nachMotorenöllagerungsiehe Abschnitt 5.3rissfrei11 Trennwiderstand der Außenlagen vomGewebe-Innenlage-Verbund nach DIN 5353011.1 Anlieferung N/mm ≥ 3,0Sofern die Proben in der Gummischichtreißen, gilt die jeweils höchste Kraftspitze imMessdiagramm.Seite 4TL 524 86: 2004-125 Prüfungshinweise5.1 ProbenFür die durchzuführenden Untersuchungen werden die angelieferten Schläuche mittels Bandmes-serspaltmaschine in die einzelnen Lagen getrennt.5.2 WärmelagerungNormstäbe S3A sind über die genannte Zeit bei +160 °C im Wärmeschrank mit Zwangsdurchlüf-tung nach DIN 53508 zu lagern.Die Messungen erfolgen 30 min nach Entnahme.5.3 MotorenöllagerungNormstäbe S3A werden 94 h bei +150 °C in ein durch ein Uhrglas verschlossenes Gefäß in Refe-rence Engine Oil C.20 nach TL 521 85 (Fa. Mobil AG, Hamburg) bzw. Castrol SLX long life 0W-30 nach TL 521 83 gelagert. Nach Entnahme aus der Prüfflüssigkeit sind die Prüflinge mittels Lappen von anhaftendem Restöl zu befreien.Die Messungen erfolgen 30 min nach Entnahme.5.4 DieselkraftstofflagerungNormstäbe S3A werden 46 h bei +23 °C in einem Gemisch aus 95 Vol.-% Dieselkraftstoff AP20/NP II (Fa. Haltermann) und 5 Vol.-% RME nach DIN EN 14214 gelagert. Nach Ablauf der Einwirkzeit werden die Teile entnommen, mittels Lappen von anhaftender Prüfflüssigkeit befreit und 15 min nach Entnahme aus dem Medium ausgewertet.Unterlagen6 MitgeltendePV 3307 Elastomerteile, Weichkunststoffteile, Plastische, elastische Verformbarkeit TL 521 83 Erstbetriebsmotorenöl SAE 0W-30 mit kraftstoffsparenden Eigenschaften für verlängerte Ölwechselintervalle; Anforderung, PrüfungTL 521 85 Reference Engine Oil C.20 SAE 5W-40, Verträglichkeitsprüfung Motoröl-Elastomerwerkstoffe; Anforderung, PrüfungenVW 2.8.1 Elastomere; Werkstoffanforderungen und -prüfungenVW 011 55 Fahrzeug-Zulieferteile allgemein; Genehmigung von Erstlieferung und Än-derungVW 911 01 Umweltnorm Fahrzeug, Fahrzeugteile, Werkstoffe, Betriebsstoffe; Schad-stoffvermeidungDIN 53504 Prüfung von Kautschuk und Elastomeren; Bestimmung von Reißfestigkeit, Zugfestigkeit, Reißdehnung und Spannungswerten im ZugversuchDIN 53505 Prüfung von Kautschuk und Elastomeren; Härteprüfung nach Shore A und Shore DDIN 53508 Prüfung von Kautschuk und Elastomeren; Künstliche AlterungDIN 53530 Prüfung organischer Werkstoffe; Trennversuch an haftend verbundenen GewebelagenSeite 5TL 524 86: 2004-12 DIN EN ISO 1183-1 Kunststoffe; Verfahren zur Bestimmung der Dichte von nicht verschäumten Kunststoffen - Teil 1: Eintauchverfahren, Verfahren mit Flüssigkeitspykno-meter und TitrationsverfahrenDIN EN 14214 Kraftstoffe für Kraftfahrzeuge ¸Fettsäure-Methylester (FAME) für Dieselmo-toren, Anforderungen und PrüfverfahrenDIN ISO 34-1 Elastomere oder thermoplastische Elastomere - Bestimmung des Weiter-reißwiderstandes - Teil 1: Streifen-, winkel- und bogenförmige Probekörper VDA 675 130 Elastomer-Bauteile in Kraftfahrzeugen; Prüfverfahren zur Identifikation;Glührückstand ohne chemische BehandlungVDA 675 241 Elastomer-Bauteile in Kraftfahrzeugen; Prüfverfahren zur Eigenschaftsbe-stimmung; Korrosionswirkung auf Kupfer。
大众汽车集团标准TL2442010年12月版分类号：50223关键字：锌，镍，钝化处理，密封，无Cr(VI)，防腐蚀，表面保护锌/镍-合金涂覆层表面保护要求Cr （在1000Mpa和1200Mpa之间的钢制件时，必须按DINENISO4042作热处理。
这些当作坚固防腐层（稳定等级为6）的涂覆层，亦特别适用于除了腐蚀负荷增加和温度负荷增加至150°C （例如：发动机室和刹车系统）之外的部件以及螺栓拧紧系统。
银色涂覆层（例如：Ofl-r642,Ofl-r643,Ofl-r645和Ofl-r647）特别适用于导线连接（接地线连接）。
这些涂覆层特别适用于内部传动的紧固元件，以避免附加的施力作用。
另外，鉴于其电化相容性，这些涂覆层尤其适用于与铝材料的连接（但不适用于与镁材料直接连接）。
Ofl-r647和Ofl-r648特别适用于表面处理后会发生塑性变形的从动元件。
（如管道系统、拉钉、拉帽、打孔螺栓）2标记方法参见VW13750，第2章节。
3技术要求3.1表面防护类型表面保护类型见表1：进行一次完整的试验需要10个成品件。
注1：采用封闭剂的表面保护类型，可能影响涂胶的附着性能。
由于其微裂性，这些涂覆层也不适合于诸如空调装置的供气系统的密封元件。
采用这种涂覆方法的部件，必须避免后来的塑性变形（卷边、挤压、弯曲），这是因为这种情况会导致损害防腐性能，从而降低防腐耐抗性。
Ofl-r647或Ofl-r648将优先运用于会发生塑性变形的零件。
Ofl-r647将优先应用于流体运载系统。
除非元件在图纸上特意标出不须涂覆，否则元件的全部表面必须依照所需的保护类型并表明其性质，涂覆层应牢牢的附着在基体材质上。
表面形态的一般注意事项：锌镍涂层零件表面粗糙度，除其他因素外，取决于锌镍电解液特性和组件的表面光洁度。
有涂层与无涂层之间的表面粗糙度相差必须≦Rz5um。
锌/镍涂覆的表面：由严重开裂引起的结瘤（如图1）会对品质产生负面影响（如剥落，防腐能力不足，元件在组装过程中无意识擦伤），所以必须要避免。
大众汽车集团标准TL 1962012年12月版分类号：50223关键字：锌；镍；钝化处理；密封；无络；防腐；表面保护；涂层系统小型零部件双涂层系统表面保护要求旧版本TL 196: 1995-11, 2001-10, 2004-10变更相对于TL 196: 2004-10版本作了如下变更：—范围补充了热处理后（抗拉强度）≤1200Mpa的部件—表面保护类型由Ofl-s627代替Ofl-s617—添加了使用温度及重复安装—添加了对切削毛刺的要求—层厚度改变—更多电镀表面细节问题—表格1更新—表格3扩展—表格4添加—附件A.1中已发布系统更新—引用标准扩展1 范围本技术支持规范要求按TL 217 进行电镀锌。
同时根据TL 244，对于抗拉强度为R m≤1000MPa的黑色金属材料和钢制部件（按VW 13750的特征字母s）表面，除锌合金涂覆层外，另需镀有有机环氧树脂层。
此外还定义了抗拉强度值大于1000Mpa时的应用范围与例外情况。
原则上，此合金镀层不适用于抗拉强度大于1200Mpa和表面硬度大于370HV的钢制件。
抗拉强度在1000Mpa-1200Mpa的Ofl-s621及Ofl-s627零件为例外，但这种情况需根据DIN EN ISO 4042进行热处理。
此标准规定涂层适用于外螺纹紧固件及内部传动的紧固件。
（≥N5按VW 01043,≥T20 按VW01048）米制螺纹组件适用于环境温度低于90摄氏度的条件下。
米制螺纹紧固件及Ofl-s627适配于一次性螺纹接头。
此涂层系统不为标准的紧固件表面保护方法。
2标记方法见VW 13750 第二章节3技术要求3.1 表面防护类型表面保护类型见表13.2基本技术要求首次供货和变更的批准，按大众标准VW 01155避免有害物质，按 VW 911 01涂层介质及涂层中不能含有络化合物(VI)。
在进行锌涂覆层和锌/镍合金涂覆层时，需以磷化处理作预处理。
薄膜锌磷化适用于紧固件。
