J39 特种加工工艺 标准查询与下载

DIN V 32540:1997 激光束磨蚀.激光束热磨蚀.定义、影响因素、程序

Laser beam removing - Thermal removing with laser beam - Definitions, influence factors, procedure

ASTM D3641-97 热模塑和挤塑材料的喷射模塑法试样标准规程

1.1 This practice covers the general principles to be followed when injection molding test specimens of thermoplastic molding and extrusion materials. This practice is to be used to obtain uniformity in methods of describing the various steps of the injection molding process and to set up uniform methods of reporting these conditions. The exact conditions required to prepare suitable specimens will vary for each plastic material. Those conditions should become a part of the specification for the material, or be agreed upon between the purchaser and the supplier. Any requirements or recommendations in the material specification which differ from this standard take precedence over those in this standard.1.2 The methodology presented assumes the use of reciprocating screw injection molding machines. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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. Note 18212;This practice is equivalent to the following parts of ISO 294: Plastics-Injection Moulding of Test Specimens of Thermoplastic Materials; 294-1: Part 1-General Principles and Multipurpose Test Specimens (ISO Type A Mould) and Bars (ISO Type B Mould); ISO 294-2: Part 2-Small Tensile Bars (ISO Type C Mould); ISO 294-3: Part 3-Plates (ISO Type D Moulds).

Standard Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion Materials

ISO 10363:1992 热熔粘胶剂 热稳定性测定

The method is based on placing a stainless steel or glass vessel in an oil bath or oven, adding a sufficient quantity of the adhesive to the vessel, melting the sample, measuring the viscosity at the operating temperature and the softening point, repeating these operations at regular time intervals of between 4 h and 6 h, until the time for stopping the test according to pre-determined criteria is reached, and observing and recording, at the time that each measurement is taken, the following phenomena: skin formation, fumes, phase separation, gelation, change in colour.

Hot-melt adhesives; determination of thermal stability

IPC TA-723 SECTION 6 加工因素

An overall knowledge of the technical considerations involved in the assembly and joining of surface mount assemblies is essential to provide reliable electronic products of acceptable quality at a reasonable cost. Understanding and controlling the process will provide consistent and reproducible results. As technology advances, the manufacturing engineer responsible for establishing, running and controlling the process will be asked to accept the challenge and push the existing equipment available to him to its limit or beyond, as newer and more challenging assemblies are designed.

Processing Considerations

JIS B 6360:1983 电火花线切割机的试验及检验方法

Test code for performance and accuracy of wire electrical discharge machines