This part of GB/T 37400 specifies the technical requirements,test methods,inspection regulations,marking,quality certificate and packaging of nonferrous metal casting.
This part is applicable to copper and copper alloy,aluminum alloy and zinc alloy castings for heavy machinery produced by sand casting,metal casting and centrifugal casting processes.This part also applies to other nonferrous castings for reference.
定价: 216元 / 折扣价: 184 元 加购物车
This part of GB/T 37400 specifies the general requirements and unspecified tolerances for machining,and puts forward specific requirements for keyways,hole diameters and spacing,central holes,unspecified surface roughness and allowable tool shapes.
This part is applicable to the machining of heavy machinery parts[WTBZ].[WTF2]The machining of other parts can also be carried out by reference.
定价: 252元 / 折扣价: 215 元 加购物车
This standard specifies the terms and definitions,personnel qualifications, test methods, test equipment,test conditions, test requirements and preparation of test report for measuring coating bond strength by ultrasonic wave.
This standard is applicable to the non-destructive testing of the coating bond strength composed of metal and non-metal materials with sound permeability of coatings, substrates and bonding layers, including adhesion, sintering, chemical and metallic bonding.
定价: 516元 / 折扣价: 439 元 加购物车
This standard specifies a method of SANS testing based on reactor neutron sources to size distribution,content and specific surface area of the second-phase particles(pores,precipitates,packing,etc.) inside samples.
This standard is applicable to the dilute systems in which the secondphase particles are statistically isotropic from nanoscale to submicron scale.Specifically,this standard is applicable to testing on solid samples such as metals,ceramics,polymers,minerals,etc.Testing on liquid system may be executed refer to this standard.The feasible thickness of the sample ranges approximately from 0.5 mm to 10 mm(for example from 0.5 mm to 3 mm for polymer samples,from 0.5 mm to 5 mm for ceramics and minerals and from 0.5 mm to 10 mm for common metallic materials).
定价: 708元 / 折扣价: 602 元 加购物车