25.220.40 标准查询与下载



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1.1 This specification describes the requirements for corrosion-resistant coatings of electrodeposited nickel-cobalt on metallic substrates and electrodeposited nickel-cobalt used for electroforming. NOTE 1—The nickel-cobalt alloy is principally deposited as a coating on steel products. It can also be electrodeposited on iron, stainless steel, aluminum, titanium, and any other metal substrate. NOTE 2—The nickel-cobalt alloy coating has a low coefficient of friction of 0.08 that provides a dry lubricant on part surfaces that are in contact with each other and are subject to galling. 1.2 This specification incorporates an accelerated exposure test method to evaluate the effects of corrosion and galling on the coating, and incorporates a means of reporting the results to the purchaser. 1.3 The specification incorporates a classification scheme that establishes service conditions for thickness, classes of deposits based on the level of monitoring, and type based on supplemental coatings used after deposition. 1.4 The coating thickness ranges from 5 to >30 µm, and it can be applied to machined parts, springs, latches, threaded parts, fasteners, etc. The deposit can also be used to electroform parts requiring high strength with the alloy being maintained at 50 % nickel-cobalt. 1.5 The nickel-cobalt alloy is used to protect ferrous metals in contact with corrosive environments such as: oil and gas production facilities, coastal marine, and ACQ (Alkaline Copper Quaternary) treatments for wood treatments. 1.6 Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8 This standard has been revised to comply with the Restriction of Hazardous Substances RoHS Requirements that seek to limit the exposure of workers and the public to toxic metals. The nickel-cobalt alloy does not contain any of the six Restricted Hazardous Substances. 1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Nickel-Cobalt Alloy Coating

ICS
25.220.40
CCS
发布
2022-05-01
实施

Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ICS
25.220.40
CCS
发布
2022-04-01
实施

Tinplate and blackplate

ICS
25.220.40
CCS
发布
2022-03-22
实施

This document defines the terms related to the general types of surface-finishing processes. Emphasis is placed on practical usage in surface-finishing technology in the metal-finishing field. This document does not include terms for porcelain and vitreous enamel, thermally sprayed coatings and galvanising for which specialized vocabularies and glossaries exist. For the most part, basic terms that have the same meaning in surface finishing as in other fields of technology, and that are defined in handbooks and dictionaries of chemistry and physics, are not included.

Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings — Vocabulary

ICS
25.220.40
CCS
发布
2022-03-08
实施

What is ISO 24284 - Corrosion test method for decorative chrome plating about? ISO 24284 discusses metallic coatings. Metallic coatings contain a metallic element or alloy. Metallic coatings can be applied by using a sprayer, electrochemically, chemically, or mechanically. ISO 24284 specifies the apparatus, reagents, and procedure to assess the corrosion resistance of chromium electroplated parts in the presence of de-icing salts (especially calcium chloride) in the laboratory. This method is primarily applicable to decorative parts plated with chromium, especially to exterior (automobile) parts electroplated with nickel-chromium or copper-nickel-chromium. ISO 24284 simulates special corrosion in the presence of hygroscopic and corrosive de-icing salt and conductive mud with a high salt concentration on chromium electroplated deposits during winter. Who is ISO 24284 - Corrosion test method for decorative chrome plating for? ISO 24284 on the corrosion test method for decorative chrome plating is useful for: Steel manufacturing industries

Metallic coatings. Corrosion test method for decorative chrome plating under a de-icing salt environment

ICS
25.220.40
CCS
发布
2022-02-28
实施
2022-02-28

This document specifies a destructive method for the measurement of the local thickness of metallic and other inorganic coatings by examination of cross-sections with a scanning electron microscope (SEM). The method is applicable for thicknesses up to several millimetres, but for such thick coatings it is usually more practical to use a light microscope (see ISO 1463). The lower thickness limit depends on the achieved measurement uncertainty (see Clause 10). NOTE The method can also be used for organic layers when they are neither damaged by the preparation of the cross-section nor by the electron beam during imaging.

Metallic coatings - Measurement of coating thickness - Scanning electron microscope method (ISO 9220:2022)

ICS
25.220.40
CCS
发布
2022-02-23
实施
2022-05-31

Measurement of the linear thermal expansion coefficient of thermal barrier coatings

ICS
25.220.40
CCS
发布
2022-02-21
实施

4 技术要求 4.1 基体  电镀前基体表面质量应符合GB/T 12611的要求。泵筒内表面保粗糙度应不大于Ra0.4 μm。 4.2 外观 4.2.1 主要表面  按照工艺完成珩磨后颜色均匀、细致等,不应有起皮、鼓泡、麻点、针眼、露镀、崩边、划伤等缺陷。 4.2.2 其它表面镀层(含外表面、内外螺纹、止口、端面) 通常情况下,这些位置无需电镀,保持光滑无可触缺陷即可;但在客户提出要求并在文件中注明时,可对产品以上位置进行复合镀处理,镀层应满足4.2.1要求外,螺纹、止口、端面等位置不应腐蚀。 4.3 镀层厚度 4.3.1 主要表面 不同基体材料主要表面镀层厚度应满足表1要求。 表1 不同基体材料镀层类型及厚度 类型代号 镀层厚度 泵筒基体材质 基体屈服强度 C1 ≥0.033 mm 中低碳钢(1020、1026、1045等) ≥414 MPa C2 ≥0.033 mm 低合金钢(30CrMo、42CrMo等) ≥345 MPa C3 ≥0.033 mm 铁素体钢(1Cr5Mo) ≥483 MPa C4 ≥0.033 mm 海军黄铜(C44300) ≥345 MPa D1 ≥0.076 mm 中低碳钢(1020、1026、1045钢等) ≥414 MPa D2 ≥0.076 mm 低合金钢(30CrMo、42CrMo等) ≥345 MPa D3 ≥0.076 mm 铁素体钢(1Cr5Mo) ≥483 MPa D4 ≥0.076 mm 海军黄铜(C44300) ≥345 MPa 4.3.2 其它表面 镀层厚度应≥0.01 mm。 4.4 附着强度 镀层与基体结合牢固,应无脱落、起泡、起皮等现象。 4.5 镀层硬度 镀层硬度应满足表2要求(其中C4和D4为海军黄铜的基体材质)。? 表2 不同类型镀层硬度 镀层类别 C1 C2 C3 C4 D1 D2 D3 D4 硬度(HV200) ≥900 ≥900 ≥900 ≥550 ≥900 ≥900 ≥900 ≥550 4.6 镀层耐蚀性 镀层厚度大于或等于0.033 mm的, 360 h后无明显扩大锈斑或锈蚀面积不超过镀层覆盖面的1%;镀层厚度大于或等于0.076 mm的,720 h后无明显扩大锈斑或锈蚀面积不超过镀层覆盖面的1%。 4.7 镀层耐磨性 经磨损后,其磨耗损失量应不大于0.6 mg/1000圈。 4.8 碳化物果粒量及粒径 复合镀层内的碳化物硬质颗粒含量≥25%,主要表面颗粒粒径(2~10)μm,其它表面颗粒粒径(1~6)。

Technical specifications for nickel carbide composite electroplating for pump barrels of oil well pumps

ICS
25.220.40
CCS
C336
发布
2022-02-21
实施
2022-06-21

This document specifies a destructive method for the measurement of the local thickness of metallic and other inorganic coatings by examination of cross-sections with a scanning electron microscope (SEM). The method is applicable for thicknesses up to several millimetres, but for such thick coatings it is usually more practical to use a light microscope (see ISO 1463). The lower thickness limit depends on the achieved measurement uncertainty (see Clause 10). NOTE The method can also be used for organic layers when they are neither damaged by the preparation of the cross-section nor by the electron beam during imaging.

Metallic coatings — Measurement of coating thickness — Scanning electron microscope method

ICS
25.220.40
CCS
发布
2022-02-11
实施

This document specifies the apparatus, reagents, and procedure to assess the corrosion resistance of chromium electroplated parts in the presence of de-icing salts (especially calcium chloride) in the laboratory. This method is primarily applicable to decorative parts plated with chromium, especially to exterior (automobile) parts electroplated with nickel-chromium or copper-nickel-chromium. This document simulates a special corrosion in the presence of hygroscopic and corrosive de-icing salt and conductive mud with a high salt concentration on chromium electroplated deposits during winter.

Metallic coatings — Corrosion test method for decorative chrome plating under a de-icing salt environment

ICS
25.220.40
CCS
发布
2022-01-05
实施

Test methods for hot dip galvanized coatings

ICS
25.220.40
CCS
发布
2021-12-20
实施

Hot dip galvanized coatings

ICS
25.220.40
CCS
发布
2021-12-20
实施

What is ISO 4524-3 about?   ISO 4524-3 is one of the parts of the multi-series standard specifies four electrographic tests for assessing the porosity of electrodeposited gold and gold alloy coatings for engineering, and decorative and protective purposes.   ISO 4524-3 provides methods for examining gold coatings and determining porosity of different metal coatings.   Who is ISO 4524-3 for?   ISO 4524-3

Metallic coatings. Test methods for electrodeposited gold and gold alloy coatings. Electrographic tests for porosity

ICS
25.220.40
CCS
发布
2021-11-30
实施
2021-11-30

Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods (ISO/DIS 1461:2021)

ICS
25.220.40
CCS
发布
2021-11-01
实施
2021-11-01

1.1 This specification covers the requirements for a coating of zinc mechanically deposited on iron and steel basis metals. The coating is provided in several thicknesses up to and including 107 µm. The seven thickest classes are usually referred to as “mechanically galvanized.” 1.2 Units—The values stated in SI units are to be regarded as the standard. The inch-pound equivalents of SI units are given for informational purposes. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—The performance of this coating complies with the requirements of Specification A153/A153M and MIL-C-81562. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

ICS
25.220.40
CCS
发布
2021-11-01
实施

Metallic coatings - Test methods for electrodeposited gold and gold alloy coatings - Part 3: Electrographic tests for porosity (ISO 4524-3:2021)

ICS
25.220.40
CCS
发布
2021-11-00
实施

Copper and copper alloys -- Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes

ICS
25.220.40
CCS
发布
2021-10-14
实施
2021-10-14

Copper and copper alloys. Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes

ICS
25.220.40
CCS
发布
2021-10-13
实施
2021-10-13

1.1 This guide gives guidance in the selection of sampling plans to be used in the inspection of electrodeposited and related coatings on products for the purpose of deciding whether submitted lots of coated products comply with the specifications applicable to the coatings. This supplements Test Method B602 by giving more information on sampling inspection and by providing additional sampling plans for the user who finds the limited choice of plans in Test Method B602 to be inadequate. 1.2 When using a sampling plan, a relatively small part of the articles in an inspection lot is selected and inspected. Based on the results, a decision is made that the inspection lot either does or does not satisfactorily conform to the specification. 1.3 This guide also contains several sampling plans. The plans are attribute plans, that is, in the application of the plans each inspected article is classified as either conforming or nonconforming to each of the coating requirements. The number of nonconforming articles is compared to a maximum allowable number. The plans are simple and relatively few. Additional plans and more complex plans that cover more situations are given in the Refs (1-7) at the end of this guide and in MIL-STD-105. 1.4 Acceptance sampling plans are used: 1.4.1 When the cost of inspection is high and the consequences of accepting a nonconforming article are not serious. 1.4.2 When 100 % inspection is fatiguing and boring and, therefore, likely to result in errors. In these cases a sampling plan may provide greater protection than 100 % inspection. 1.4.3 When inspection requires a destructive test. Here, sampling inspection must be used. 1.5 Another general type of acceptance sampling plan that is not covered in these guidelines is the variables plan in which measured values of characteristics are analyzed by statistical procedures. Such plans, when applicable, can reduce inspection cost and increase quality protection. Information on variables plans is given in Test Method B762, MIL-STD-414, ANSI/ASQC Z1.9-1979, and Refs (1-2). 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings

ICS
25.220.40
CCS
发布
2021-10-01
实施

1.1 This specification covers requirements for electrodeposited coatings of rhodium used for engineering purposes. 1.2 Coatings of rhodium covered by this specification are usually employed for their corrosion resistance, stable electrical contact resistance, wear resistance, reflectivity, and heat resistance. 1.3 Appendix X1 covers some typical applications for electrodeposited rhodium. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard Specification for Electrodeposited Coatings of Rhodium for Engineering Use

ICS
25.220.40
CCS
发布
2021-10-01
实施



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