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金化合物检测项目报价? 解决方案? 检测周期? 样品要求? |
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本部分规定了电触头、热双金属、电热合金、导电合金、电阻合金、热电偶合金及磁性材料的专用电工术语。本部分适用于电触头、热双金属、电热合金、导电合金、电阻合金、热电偶合金及磁性材料等产品标准制定、编制技术文件,编写和翻译手册、教材、专著等书刊,以及对外贸易、技术交流等。
本标准规定了由约为65%(质量比)锡和30%(质量比)的镍所组成的金属间化合物锡 镍合金电镀层的技术要求和试验方法。 本标准适用于钢铁及其他金属制品上的锡-镍合金电镀层,该电镀层在不同的使用条件下能防止基体金属腐蚀。 本标准不适用于: 螺纹件上的锡 镍合金镀层。 未加工成型的板材、带材或线材上的锡-镍合金镀层,或由它们加工成型的零件上的锡-镍合金镀层; 弹簧圈上的锡-镍合金镀层; 抗拉强度大于1 000MPa(或相应硬度)钢上的锡-镍合金镀层,因为这种钢经电镀后易产生氢脆(见8.2); 主要用作改变零件表面色调,赋予零件装饰性外观的锡 镍合金薄表面镀层。
本标准规定了硒化氢的技术要求,试验方法以及包装、标志、贮运及安全。 本标准适用于硒铝、硒镁合金化合物水解、单质硒与氢高温反应等方法获得并经精制得到的硒化氢产品。它主要用于太阳能电池、半导体和集成电路生产的外延、离子注入和掺杂。
本标准规定了6种类型2种类别的铝和铝合金阳极氧化膜要求。本标准适用于电子行业防护和装饰用铝和铝合金阳极氧化膜。本标准不适用于粘接用阳极氧化膜。
本标准规定了金化合物中金量的测定方法。本标准适用于氰化亚金钾(KAu(CN)<下标2>)、氰化金钾(KAu(CN)<下标4>)、氯金酸钾(KAuCl<下标4>)、氯金酸钠(NaAuCl<下标4>)、氯金酸(HAuCl<下标4>)、氯化金(AuCl<下标3>)、三苯基膦氯化金([(C<下标6>H<下标5>)<下标3>P]AuCl)中金量的测定。测定范围:30.00%~70.00%。
This standard also gives rules for determiningThe technical requirements for prefabricated tensioncomponents for assessingTheir safety, serviceability and durability.
The criteria laid down in this standard serve to evaluate the corrosion behaviour of unprotected metallic materials and coatings subject to galvanic corosion in sea water at ambient temperature. Since the chemical composition of the sea water as well as the extent and the type of fouling are not constant through all seasons and the mechanical loads acting on the corrosion behaviour can only be stated in terms of probability. Warranty claims cannot be derived from these normative criteria. Corrosion protection obtained by coatings as well as the cathodic corrosion protection are not subjects of this standard.
This European Standard specifies the weldability and brazeability of materials or material families used in the aerospace industry.
This European Standard specifies the weldability and brazeability of materials or material families used in the aerospace industry.
This document defines the rules to be observed to ensure the quality of aerospace structures in metallic materials by laser beam welding, implemented automatically, semi-automatically or manually. It is applicable without any restriction for the manufacturing of new parts or repair parts.
To update the terms and definitions to be used in CEN/TC 132 standards. The document defines general terms which are helpful for the communication within the aluminum industry and its customers relating to products of aluminium and aluminium alloys. Definitions in other standards applying to a particular field of application can be more specific than the definitions of identical terms in this standard; these can be found in the relevant standards.
This part of IEC 61191 specifies the evaluation criteria for voids on the scale of the thermal cycle life, and the measurement method of voids using X-ray observation. This part of IEC 61191 is applicable to the voids generated in the solder joints of BGA and LGA soldered on a board. This part of IEC 61191 is not applicable to the BGA package itself before it is assembled on a board.
This part of the IEC/TS 62647 series defines the objectives of, and requirements for, documenting processes that assure customers and regulatory agencies that ADHP electronic systems containing Pb-free solder, piece parts, and PWBs will satisfy the applicable requirements for performance, reliability, airworthiness, safety, and certifiability throughout the specified life of performance.
This European Standard defines the rules to be observed to ensure the quality of aerospace structures inmetallic materials by (solid reference number 521 and gas reference number 522 and diode laser Semiconductor523 according to EN ISO 4063) laser beam welding, implemented automatically, semi-automaticallyor manually.It is applicable without any restriction for the manufacturing of new parts or repair parts, these operations beingunder the responsibility of an approved design authority or repairer.
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