25.220.40 标准查询与下载



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This specification together with the Purchase Order covers the minimum requirements for impressed current anodes (with or without cables) for cathodic protection. Applications include offshore, nearshore and onshore installations.

Petroleum and natural gas industries- Impressed Current Anodes for Cathodic Protection

ICS
25.220.40
CCS
发布
2015-12-21
实施

1.1 This specification covers the requirements for electrodeposited coatings of titanium and titanium-zirconium alloys on conductive and non-conductive substrates for engineering (functional) uses. The coatings of titanium-zirconium alloys are those that range in zirconium between 10wt% and 14wt% zirconium and are known as “terne” metallic electrodeposits. 1.2 This specification applies for both conductive (metallic) substrates and non-conductive (plastics, fibers, carbon foam, etc.) 1.3 Electrodeposits of titanium and titanium-zirconium alloys on aluminum and conductive substrate and nonconductive substrate are produced where it is desired to obtain atmospheric corrosion resistance. Deposits of titanium and titanium-zirconium alloys particularly on aluminum have shown to have excellent corrosion protective qualities in atmospheric exposure, especially when under-coated by electroless nickel. Titanium and titanium-zirconium alloy deposits provide corrosion protection from dilute sulfuric acid, are used for lining of brine refrigeration tanks, chemical equipment apparatus, storage batteries, and as a wear coating for bearing surfaces. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Specification for Titanium and Titanium Alloys Plating, Electrodeposited Coatings of Titanium and Titanium Alloys on Conductive and Non-Conductive Substrate

ICS
25.220.40
CCS
发布
2015-11-15
实施

本标准规定了装饰性酸性光亮镀铜添加剂的术语和定义、技术要求、试验方法、检测规则、标志、包装和储运。 本标准适用于电镀工业中装饰性酸性光亮镀铜添加剂。 本标准不适用于镀厚铜添加剂。

Technical conditions of additive of bright acid copper plating for decorative

ICS
25.220.40
CCS
A29
发布
2015-10-10
实施
2016-03-01

This International Standard specifies electrodeposited coatings of tin-cobalt alloy of approximate composition 75 % (mass fraction) to 80 % (mass fraction) tin, remainder cobalt, as a substitute for decorative chromium coatings of 0,1 µm to 0,3 µm thickness. Hardness and wear resistance properties of the coatings obtained are not equivalent to those of chromium coatings, but similar to those of tin-nickel alloy coatings. Tin-cobalt alloy coatings can be applied by rack or barrel plating processes. This International Standard does not specify requirements for the surface condition of the basis metal prior to electroplating.

Metallic and other inorganic coatings -- Electrodeposited coatings of tin-cobalt alloy

ICS
25.220.40
CCS
发布
2015-09-03
实施

This International Standard specifies requirements for electroplated coatings of nominally pure tin on fabricated metal articles. The coatings may be dull or bright as electroplated or may be flow-melted by fusion after electroplating. It does not apply to a) threaded components; b) tin-coated copper wire ; c) coatings on sheet, strip or wire in unfabricated form, or on articles made from them ; d) coatings on coil springs; e) coatings applied by chemical means (immersion, autocatalytic or"electroless") ; f) electroplating of steels with tensile strength greater than 1 000 MPa1) (or of corresponding hardness), because such steels are subject to hydrogen embrittlement (see 8.2).

Electroplated coatings of tin -- Specification and test methods

ICS
25.220.40
CCS
发布
2015-09-03
实施

This International Standard specifies the requirements of electroplated coatings of cadmium with supplementary treatments on iron and steel. It includes information that is to be supplied by the purchaser to the electroplater, and describes coating requirements, including those for heat treatment before and after electroplating. It is not applicable to coatings applied — to sheet, strip or wire in the non-fabricated form, — to close-coiled springs, or — for purposes other than protective, intrinsic lubricity, ductility, electrical conductivity and low contact resistance use. This International Standard does not specify requirements for the surface condition of the basis metal prior to electrodeposition with cadmium. The coating thickness that can be applied to threaded components can be limited by dimensional requirements, including class or fit.

Metallic and other inorganic coatings -- Electroplated coatings of cadmium with supplementary treatments on iron or steel

ICS
25.220.40
CCS
发布
2015-09-03
实施

BS ISO 19477. Metallic and other inorganic coatings. Measurement of Young’s modulus of thermal barrier coatings by beam bending

ICS
25.220.40
CCS
发布
2015-03-23
实施
2015-03-23

1.1 This specification covers the requirements for electrodeposited tin-lead coatings on fabricated articles of iron, steel, copper, and copper alloys, to protect them against corrosion (Note 1), to improve and preserve solderability over long periods of storage, and to improve anti-galling characteristics. NOTE 1—Some corrosion of tin-lead coatings may be expected in outdoor exposure. In normal indoor exposure, tin-lead is protective on iron, copper, and copper alloys. Corrosion may be expected at discontinuities (pits or pores) in the coating. Porosity decreases as the thickness is increased. A primary use of the tin-lead coating (solder) is with the printed circuit industry as a solderable coating and as an etch mask material. 1.2 This specification applies to electrodeposited coatings containing a minimum of 50 % and a maximum of 70 % tin. The specification applies to mat, bright, and flow-brightened tin-lead coatings. NOTE 2—Tin-lead plating baths are composed of tin and lead fluoborates and of addition agents to promote stability. The final appearance may be influenced by the addition of proprietary brighteners. Without brighteners, the coatings are mat; with brighteners, they are semibright or bright. Flow-brightened coatings are obtained by heating mat coatings to above the melting point of tin-lead for a few seconds and then quenching; palm oil, hydrogenated oils, or fats are used as a heat-transfer medium at a temperature of 260 6 10°C (500 6 20°F), but other methods of heating are also in use. The maximum thickness for flow-brightening is about 7.5 µm (0.3 mil); thicker coatings tend to reflow unevenly. The shape of the part is also a factor; flat surfaces tend to reflow more unevenly than wires or rounded shapes (Note 3). NOTE 3—Volatile impurities in tin-lead coatings will cause bubbling and foaming during flow-brightening resulting in voids and roughness. The impurities can arise from plating solution addition agents and from improper rinsing and processing. 1.3 This specification does not apply to sheet, strip, or wire in the unfabricated form or to threaded articles having basic major diameters up to and including 19 mm (0.75 in.).

Standard Specification for Electrodeposited Coatings of Tin-Lead Alloy (Solder Plate)

ICS
25.220.40
CCS
发布
2015-03-01
实施

1.1 Nickel boron coatings are produced by autocatalytic (electroless) deposition from aqueous solutions. These solutions contain either an alkylamineborane or sodium borohydride as a reducing agent, a source of nickel ions, a buffer, complexant, and control chemicals. 1.2 This specification describes the requirements for coatings of autocatalytic nickel boron deposited from aqueous solutions onto substrates for engineering use. The specification classifies these coatings into two types: 1.2.1 Type 1 coatings  have a boron content of 0.1 to less than 3.5 mass percent with the balance nickel. 1.2.2 Type 2 coatings  have a boron content of 3.5 to 6 mass percent and a minimum of 90 mass percent nickel. 1.3 The coatings are hard and uniform in thickness, even on irregular shaped parts, and used in a wide range of applications. 1.4 Process solutions formulated with an alkylamineborane usually produce coatings that contain 0.1 to 3.58201;% boron. Thin coatings of this type provide bondability and solderability on electronic components such as lead frames, electrical contacts, and headers. To maintain solderability, these coatings are generally not heat treated. 1.5 Process solutions formulated with sodium borohydride are strongly alkaline and are frequently used to plate steel and titanium parts to impart surface hardness and wear resistance properties. Deposits produced from these processes can contain 3 to 58201;% boron and thallium or other metals which are used to stabilize the plating solution and modify the coating properties. 1.6 The physical and mechanical properties of these deposits such as density, hardness, stress, and melting point will vary with the boron content. The variation of boron content also affects the quantity and structure of nickel boride precipitated during heat treatment. In the as-plated condition the deposit consists of a predominantly amorphous mixture of nickel and boron with a hardness of about 700 HKN. When the deposit is heated above 300°C the nickel crystallizes, forming nickel clusters of Ni (111) and boron precipitates as nickel boride, Ni3B (211) and (311), increasing the hardness to greater than 1000 HK100 for Type 2 coatings. 1.7 The nickel boron coatings are microporous and offer limited corrosion protection. Their columnar structure, however, is beneficial in reducing wear because it provides a means of trapping lubricants within the surface of the coated part. 1.8 This document describes only autocatalytic nickel boron coatings that have been produced without use of external electric sources. 1.9 The values stated in SI units are to be regarded as standard. No other uni......

Standard Specification for Autocatalytic Nickel Boron Coatings for Engineering Use

ICS
25.220.40
CCS
发布
2015
实施

1.1 This specification covers requirements for autocatalytic (electroless) nickel-phosphorus coatings applied from aqueous solutions to metallic products for engineering (functional) uses. 1.2 The coatings are alloys of nickel and phosphorus produced by autocatalytic chemical reduction with hypophosphite. Because the deposited nickel alloy is a catalyst for the reaction, the process is self-sustaining. The chemical and physical properties of the deposit vary primarily with its phosphorus content and subsequent heat treatment. The chemical makeup of the plating solution and the use of the solution can affect the porosity and corrosion resistance of the deposit. For more details, see ASTM STP 265 (1)2 and Refs (2) (3) (4) and (5). 1.3 The coatings are generally deposited from acidic solutions operating at elevated temperatures. 1.4 The process produces coatings of uniform thickness on irregularly shaped parts, provided the plating solution circulates freely over their surfaces. 1.5 The coatings have multifunctional properties, such as hardness, heat hardenability, abrasion, wear and corrosion resistance, magnetics, electrical conductivity provide diffusion barrier, and solderability. They are also used for the salvage of worn or mismachined parts. 1.6 The low phosphorus (2 to 48201;% P) coatings are microcrystalline and possess high as-plated hardness (620 to 750 HK 100). These coatings are used in applications requiring abrasion and wear resistance. 1.7 Lower phosphorus deposits in the range between 1 and 38201;% phosphorus are also microcrystalline. These coatings are used in electronic applications providing solderability, bondability, increased electrical conductivity, and resistance to strong alkali solutions. 1.8 The medium phosphorous coatings (5 to 98201;% P) are most widely used to meet the general purpose requirements of wear and corrosion resistance. 1.9 The high phosphorous (more than 108201;% P) coatings have superior salt-spray and acid resistance in a wide range of applications. They are used on beryllium and titanium parts for low stress properties. Coatings with phosphorus contents greater than 11.28201;% P are not considered to be ferromagnetic. 1.10 The values stated in SI units are to be regarded as standard. 1.11 The following precautionary statem......

Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal

ICS
25.220.40
CCS
发布
2015
实施

1.1 This practice covers the precautions that should be taken to obtain high-quality hot-dip galvanized coatings. 1.2 Where experience on a specific product indicates a relaxing of any provision, the mutually acceptable change shall be a matter for agreement between the manufacturer and purchaser. 1.3 This specification is applicable to orders in either inch-pound units (as A385) or in SI units (as A385M). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in brackets. Each system shall be used independently of the other without combining values in any way.

Standard Practice for Providing High-Quality Zinc Coatings (Hot-Dip)

ICS
25.220.40
CCS
A29
发布
2015
实施

1.1 This specification covers the requirements for zinc coating (galvanizing) by the hot-dip process on iron and steel products made from rolled pressed and forged shapes, castings, plates, bars, and strips. 1.2 This specification covers both unfabricated products and fabricated products, for example, assembled steel products, structural steel fabrications, large tubes already bent or welded before galvanizing, and wire work fabricated from uncoated steel wire. This specification also covers steel forgings and iron castings incorporated into pieces fabricated before galvanizing or which are too large to be centrifuged (or otherwise handled to remove excess galvanizing bath metal). Note 1: This specification covers those products previously addressed in Specifications A123-78 and A386-78. 1.3 This specification does not apply to wire, pipe, tube, or steel sheet which is galvanized on specialized or continuous lines, or to steel less than 22 gage (0.0299 in.) [0.76 mm] thick. 1.4 The galvanizing of hardware items that are to be centrifuged or otherwise handled to remove excess zinc (such as bolts and similar threaded fasteners, castings and rolled, pressed and forged items) shall be in accordance with Specification A153/A153M. 1.5 Fabricated reinforcing steel bar assemblies are covered by the present specification. The galvanizing of separate reinforcing steel bars shall be in accordance with Specification A767/A767M. 1.6 This specification is applicable to orders in either inch-pound units (as A123) or SI units (as A123M). Inch-pound units and SI units are not necessarily exact equivalents. Within the text of this specification and where appropriate, SI units are shown in parentheses. Each system shall be used independently of the other without combining values in any way. In the case of orders in SI units, all testing and inspection shall be done using the metric equivalent of the test or inspection method as appropriate. In the case of orders in SI units, such shall be stated to the galvanizer when the order is placed.

Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ICS
25.220.40
CCS
H40
发布
2015
实施

1.1 This specification covers the requirements for hot-dip zinc coating applied to carbon steel and alloy steel bolts, screws, washers, nuts, and special threaded fasteners. It also provides for minor coating repairs. Nails and rivets are not included in this specification. 1.2 It is intended to be applicable to fasteners that are centrifuged or otherwise handled to remove excess galvanizing bath metal (free zinc). 1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

ICS
25.220.40
CCS
发布
2015
实施

5.1 The spiral contractometer, properly used, will give reproducible results (see 9.5) over a wide range of stress values. Internal stress limits with this method can be specified for use by both the purchaser and the producer of plated or electroformed parts. 5.2 Plating with large tensile stresses will reduce the fatigue strength of a product made from high-strength steel. Maximum stress limits can be specified to minimize this. Other properties affected by stress include corrosion resistance, dimensional stability, cracking, and peeling. 5.3 In control of electroforming solutions, the effects of stress are more widely recognized, and the control of stress is usually necessary to obtain a usable electroform. Internal stress limits can be determined and specified for production control. 5.4 Internal stress values obtained by the spiral contractometer do not necessarily reflect the internal stress values found on a part plated in the same solution. Internal stress varies with many factors, such as coating thickness, preparation of substrate, current density, and temperature, as well as the solution composition. Closer correlation is achieved when the test conditions match those used to coat the part. 1.1 This test method covers the use of the spiral contractometer for measuring the internal stress of metallic coatings as produced from plating solutions on a helical cathode. The test method can be used with electrolytic and autocatalytic deposits. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 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 and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Measurement of Internal Stress of Plated Metallic Coatings with the Spiral Contractometer

ICS
25.220.40
CCS
发布
2015
实施

1.1 This specification covers material and process requirements for electrodeposited zinc coatings applied to iron or steel articles to protect them from corrosion. 1.2 The coatings are provided in four standard thickness classes (4.1), in the as-plated condition or with one of five types of supplementary finishes (4.2). 1.3 High strength metals, unless otherwise specified, including high strength steels having a tensile strength greater than 1700 MPa (247 ksi, 46HRC) shall not be electroplated. 1.4 It does not cover continuous processes for electrodeposited zinc coated steel wire or sheets (see Specification A591/A591M for sheets.) 1.5 It may be used for fasteners but specific specifications have been developed for manufacturing fasteners in Committee F16 which may be more applicable (see Specifications F1941 and F1941M. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 and health practices and determine the applicability of regulatory limitations prior to use. 1.8 This standard has been revised to address RoHS requirements that seek to limit the exposure of workers and the public from exposure to toxic metals. Additional types V and VI have been added to permit non-chromate passivate treatments to be used in replacement of hexavalent chromium.

Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel

ICS
25.220.40
CCS
A29
发布
2015
实施

Zinc coatings for steel wire

ICS
25.220.40
CCS
发布
20141231
实施
20141231

Zinc coatings for steel wire

ICS
25.220.40
CCS
发布
2014-12-31
实施

This part of ISO 7989 specifies the requirements for the coating mass per unit area, for other properties and also for testing of non-ferrous metallic coatings on steel wire products, of circular or other cross-section. This part of ISO 7989 deals with general application requirements, and is of use for those coatings for which no particular requirements have been laid down in ISO 7989-2. Deviations are possible, particularly if required for well-defined products. In such cases, appropriate requirements are part of the relevant product standard.

Steel wire and wire products -- Non-ferrous metallic coatings on steel wire -- Part 1: General principles

ICS
25.220.40
CCS
发布
2014-12-25
实施

This part of ISO 7989 specifies the requirements for the coating mass per unit area, for other properties and also for testing of zinc or zinc-alloy coatings on steel wire and steel wire products, of circular or other section.

Steel wire and wire products -- Non-ferrous metallic coatings on steel wire -- Part 2: Zinc or zinc-alloy coating

ICS
25.220.40
CCS
发布
2014-12-25
实施

Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal

ICS
25.220.40
CCS
发布
2014-11-01
实施



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