K14 电工合金零件 标准查询与下载

ASTM B628-98(2010) 银铜低共熔电触头合金标准规格

1.1 This specification covers 72 % silver-28 % copper (eutectic) alloy rod, wire, strip, and sheet material for electrical contacts. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Standard Specification for Silver-Copper Eutectic Electrical Contact Alloy

ASTM B854-98(2004) 测量电接触中断用标准导则

This guide suggests techniques to evaluate intermittences in a contact pair while it is subjected to simulated or actual environmental stress. Such measurements are a valuable tool in predicting circuit performance under these stress conditions and in diagnosing observed problems in circuit function under such conditions. This document is intended to provide some general guidance on the best available practices for detecting, quantifying, characterizing and reporting short duration intermittences in circuits containing electrical contacts. Certain environmental stresses such as mechanical shock, vibration or temperature change may cause intermittences. These measurement procedures include methods applicable to contacts operating under various conditions in testing or in service. Practice B 615 defines methods for measuring electrical contact noise in sliding electrical contacts. In contrast Guide B 854 provides guidance to the various methods for measuring similar phenomena in static contacts.1.1 The techniques described in this guide apply to electrical circuits that include one or more electrical contacts in devices such as slip rings, separable connectors, electromechanical relays or closed switch contacts. The user should determine applicability for other devices. 1.2 The range of techniques described apply to circuit discontinuities (intermittences) of durations ranging from approximately 10 nanoseconds to several seconds and of sufficient magnitude to cause alteration of the circuit function. Extension of the guide to shorter duration events may be possible with suitable instrumentation. Events of longer duration may be monitored by techniques for dc measurements such as those described in Test Methods B539 or by adaptation of methods described in this guide. 1.3 The techniques described in this guide apply to electrical circuits carrying currents typical of signal circuits. Such currents are generally less than 100 ma. Extension of these techniques to circuits carrying larger currents may be possible, but the user should evaluate applicability first. 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 Guide for Measuring Electrical Contact Intermittences

JB/T 8633-1997 铆钉型电触头用线材技术条件

本标准规定了铆钉型电触头用纯银、细晶银、纯铜和银基合金线材的技术要求、抽样、检验方法、标志、包装与保管等内容。 本标准适用于以各种方法制造的上述铆钉型电触头用线材。

Specifications for wire rods for rivet-type electrical contacts

JB/T 8632-1997 电材料电弧烧损试验方法

本标准规定了开关电器用电触头材料抗电弧烧损能力的试验方法。 本方法适用于高压和低压开关电器中所使用的银基、铜基、钨基电触头材料的抗电弧烧损能力试验。对其它电触头材料可以参照本试验方法执行。

Test method of electric arc melting loss of electrical materials

JB/T 8623-1997 工业铜热电阻技术条件及分度表

本标准规定了工业铜热电阻的技术要求、试验方法和分度表。 本标准适用于－50～＋150℃整个或部分温度范围的铜热电阻。

Technical specification and reference table for industrial copper thermal resistance

JIS C 2524:1997 电热丝和轧制线材的加速寿命试验

この規格は，電熱線及び帯の寿命試験の方法について規定する。

Accelerated life test of electric heating wires and rolled wires

ASTM B845-97(2008)e2 电触点的混流气体(MFG)试验用标准指南

1.1 The techniques described in this guide pertain to mixed flowing gas (MFG) tests containing species that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. These techniques may be relevant to other devices, but it is the responsibility of the user to determine suitability......

Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

ASTM B845-97(2013) 电触点的混流气体(MFG)试验用标准指南

4.1 Preservation of a conducting surface on electrical contact is vital to the continued functioning of such contacts. Contamination of the surface with insulating layers formed by corrosion processes is one potential hazard. Laboratory testing of contacts in MFG tests is used to assess the effectiveness of design features and materials. 4.2 MFG tests are used in development studies of processes and materials for contacts. For example, coupon specimens may be exposed to MFG tests to evaluate new contact materials, layers of new coating materials on a supporting substrate, reduced coating thicknesses, or protective surface treatments. 4.3 MFG tests are also employed to test the durability of a finished product with respect to atmospheric corrosion. For example, finished connectors may be exposed to a MFG test and their performances compared against each other or against a set of fixed requirements. Relays or switch contacts may be exposed in the operated and non-operated conditions to compare performance. 4.4 MFG tests are useful for determining the effectiveness of connector housings and shrouds as barriers to ingress of atmospheric corrodants to the contact surfaces. These tests can also be used to assess the screening of the metal-to-metal contact areas of mated connectors. 4.5 MFG tests are employed as qualification tests to determine connector failure rates in application environments for which correlation between test and application has previously been established. 4.6 This guide provides test conditions which are to be applied in conjunction with Practice B827 which defines the required test operation and certification procedures, tolerances, and reporting requirements. Where the test specifier requires certifications or tolerances different than those provided in Practice B827, the required certifications or tolerances shall be part of the test specification. Differences from the specifications in Practice B827 shall be reported in the test report provided by the test operator to the test specifier. Specification of one of the test conditions defined in this document in the form of a statement such as, “Parts shall be tested in accordance with ASTM B845 Method Z.”, implicitly requires test condition, Z, applied according to Practice B827. 1.1 The techniques described in this guide pertain to mixed flowing gas (MFG) tests containing species that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. These techniques may be relevant to other devices, but it is the responsibility of the user to determine suitability prior to testing. 1.2 The MFG tests described in this guide are designed to accelerate corrosive degradation processes. These accelerations are designed such that the degradation occurs in a much shorter time period than that expecte......

Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

ASTM B845-97(2003) 电触点的混流气体试验用标准导则

1.1 The techniques described in this guide pertain to mixed flowing gas (MFG) tests containing species that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. These techniques may be relevant to other devices, but it is the responsibility of the user to determine suitability prior to testing.1.2 The MFG tests described in this guide are designed to accelerate corrosive degradation processes. These accelerations are designed such that the degradation occurs in a much shorter time period than that expected for such processes in the intended application environment of the device being tested. Application environments can vary continuously from benign to aggressively corrosive. Connectors and contacts within closed electronic cabinets may be affected by an environment of different severity than the environment on the outside of such cabinets. In general, indoor environments are different than outdoor environments. The MFG tests described herein, being discrete embodiments of specific corrosive conditions, cannot be representative of all possible application environments. It is the responsibility of the test specifier to assure the pertinence of a given test condition to the specifier''s application condition.1.3 The MFG tests described herein are not designed to duplicate the actual intended application environmental of the device under test. An extended bibliography, Section 10, that provides information which is useful to test specifiers to assist them in selecting appropriate test methods is included in this guide. The bibliography covers the scope from application condition characterization, single and multiple gas effects, and material and product effects to key application and test variables as well as discussions of atmospheric corrosion processes.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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

ASTM B845-97(2008)e1 电触点的混流气体试验用标准指南

Preservation of a conducting surface on electrical contact is vital to the continued functioning of such contacts. Contamination of the surface with insulating layers formed by corrosion processes is one potential hazard. Laboratory testing of contacts in MFG tests is used to assess the effectiveness of design features and materials. MFG tests are used in development studies of processes and materials for contacts. For example, coupon specimens may be exposed to MFG tests to evaluate new contact materials, layers of new coating materials on a supporting substrate, reduced coating thicknesses, or protective surface treatments. MFG tests are also employed to test the durability of a finished product with respect to atmospheric corrosion. For example, finished connectors may be exposed to a MFG test and their performances compared against each other or against a set of fixed requirements. Relays or switch contacts may be exposed in the operated and non-operated conditions to compare performance. MFG tests are useful for determining the effectiveness of connector housings and shrouds as barriers to ingress of atmospheric corrodants to the contact surfaces. These tests can also be used to assess the screening of the metal-to-metal contact areas of mated connectors. MFG tests are employed as qualification tests to determine connector failure rates in application environments for which correlation between test and application has previously been established. This guide provides test conditions which are to be applied in conjunction with Practice B 827 which defines the required test operation and certification procedures, tolerances, and reporting requirements. Where the test specifier requires certifications or tolerances different than those provided in Practice B 827, the required certifications or tolerances shall be part of the test specification. Differences from the specifications in Practice B 827 shall be reported in the test report provided by the test operator to the test specifier. Specification of one of the test conditions defined in this document in the form of a statement such as, “Parts shall be tested in accordance with ASTM B 845 Method Z.”, implicitly requires test condition, Z, applied according to Practice B 827.1.1 The techniques described in this guide pertain to mixed flowing gas (MFG) tests containing species that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. These techniques may be relevant to other devices, but it is the responsibility of the user to determine suitability prior to testing. 1.2 The MFG tests described in this guide are designed to accelerate corrosive degradation processes. These accelerations are designed such that the degradation occurs in a much shorter time period than that expected for such processes in the intended application environment of the device being tested. Application environments can vary continuously from benign to aggressively corrosive. Connectors and contacts within closed electronic cabinets may be affected by an environment of different severity than the environment on the outside of such cabinets. In general, indoor environments are different than outdoor environments. The MFG tests described herein, being discrete embodiments of specific corrosive conditions, cannot be representative of all possible application environments. It is the responsibility of the test specifier to assure the pertinence of a given test condition to the specifier''s application condition. 1.3 The MFG tests described herein are not d......

Standard Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

ASTM B772-97(2008) 电接触材料化学成分的规定的标准指南(击穿和非击穿)

This guide should be used by committees or individuals in specifying the chemical composition of electrical contact materials.1.1 This guide provides suggested methods for users and producers of electrical contact materials to specify the chemical compositions of these materials. 1.2 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

Standard Guide for Specifying the Chemical Compositions for Electrical Contact Materials (Arcing and Nonarcing)

ASTM B845-97 电触点的混流气体(MFG)试验用标准指南

1.1 The techniques described in this guide pertain to mixed flowing gas (MFG) tests containing corrosive species that are applied to evaluate devices containing electrical contacts such as slip rings, separable connectors, electromechanical relays or switch contacts. These techniques may be relevant to other devices, but it is the responsibility of the user to determine suitability prior to testing. 1.2 The MFG tests described in this guide are designed to accelerate corrosive degradation processes. These accelerations are designed such that the degradation occurs in a much shorter time period than that expected for such processes in the intended application environment of the device being tested. Application environments can vary continuously from benign to aggressively corrosive. Connectors and contacts within closed electronic cabinets may be affected by an environment of different severity than the environment on the outside of such cabinets. In general, indoor environments are different than outdoor environments. The MFG tests described herein, being discrete embodiments of specific corrosive conditions, cannot be representative of all possible application environments. It is the responsibility of the test specifier to assure the pertinence of a given test condition to the specifier''s application condition. 1.3 The MFG tests described herein are not designed to duplicate the actual intended application environment of the device under test. An extended bibliography, Section 10, that provides information which is useful to test specifiers to assist them in selecting appropriate test methods is included in this guide. The bibliography covers the scope from application condition characterization, single and multiple gas effects, and material and product effects to key application and test variables as well as discussions of atmospheric corrosion processes. 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 Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

JB/T 8508-1996 电工级氧化镁

本标准规定了电工级氧化镁及其制品的各项要求，包括产品分类、技术要求、试验方法、检验规则及订购和供货等。 本标准适用于按JB 4088和JB/T 2379制造的管状电热元件用或其他电工产品用的电工级氧化镁。 供在特殊场合下使用的管状电热元件中的电工级氧化镁，除符合本标准外，还应符合相应标准的特殊要求。

Electrical grade magnesium oxide

JB/T 8505-1996 铜石墨电触头材料化学分析方法

本标准规定了铜石墨电触头材料中碳量的测定方法。 本标准适用于铜石墨电触头材料中碳量的测定。测定范围：2.00%～10.00%

Chemical analysis method for copper-graphite electric contactor material

JB/T 8443.1-1996 铜铬触头材料化学分析方法.硫酸亚铁铵滴定法测定铬量

本标准规定了铜铬触头材料中铬量的测定方法。 本标准适用于铜铬触头材料中铬量的测定。测定范围：20.00%～55.00%

Chemical analysis method for copper and chromium contact materials Determination of chromium content with ammonium ferrous sulfate titrimetric method

JB/T 8444-1996 粉末冶金法银金属氧化物电触头技术条件

本标准规定了粉末冶金法银氧化镉、银氧化锌、银氧化铜、银氧化锡等银金属氧化物电触头的技术要求、抽样试验方法、标志、包装与保管等内容。 本标准适用于低压天关电器用的以粉末冶金基本工艺生产的银金属氧化物电触头元件。

Technical specification for silver-metal oxide electric contactor of powder metallurgic method

JB/T 8443.2-1996 铜铬触头材料化学分析方法.碘量法测定铜量

本标准规定了铜铬触头材料中铜量的测定方法。 本标准适用于铜铬触头材料中铜量的测定。测定范围：45.00%～80.00%

Chemical analysis method for copper and chromium contact materials Determination of copper content with iodometric method

ANSI/ASTM B542:1996 电触点及其用途术语

The terms included in this list are those that are peculiar to electric contacts or general terms that have a specific meaning when related to electric contacts. The definitions were prepared assuming that the reader has a general knowledge in a physical science but is unfamiliar with the terminology of the literature of electric contacts.

Terminology Relating to Electrical Contacts and Their Use

JB/T 7780.1-1995 铆钉触头用线材机械物理性能试验方法 铆钉触头用线材密度测量方法

本标准规定了铆钉触头用线材的密度测量方法。 本标准适用于以各种方法加工而成的铆钉触头用的各类线材，也适用于其它触头用线材。

Test methods for mechanical and physical properties of wire rods for rivet contacts Test methods for density measurement of wire rods for rivet contacts

JB/T 7780.2-1995 铆钉触头用线材机械物理性能试验方法 铆钉触头用线材硬度测量方法

本标准规定了铆钉触头用线材的硬度测量方法。 本标准适用于以各种方法加工而成的铆钉触头用的各类线材，也适用于其它触头用线材。

Test methods for mechanical and physical properties of wire rods for rivet contacts Test methods for hardness measurement of wire rods for rivet contacts