Processing technology and quality standards--Dongguan Success Building Materials Technology Co.,Ltd

NO.	Inspection item	Technical requirements and standards				Test tools
1	shape	Conform to the engineering drawings				Tested in accordance with engineering drawings

2	Specification	Items		Allowable deviation(mm)		steel tape、vernier caliper
	Size	Side length（mm）	≤2000	±1.0
			＞2000	±1.5
		Edge size(mm)	≤2000	≤2.0
			＞2000	≤2.5
		Diagonal size(mm)	≤2000	±2.0
			＞2000	±2.5
		Folding height		±1
		Aluminum plate surface to the end surface of lug height		±1.5
3	Decks	Flatness		≤2/1000		guiding rule
		No edge print, roll print, wave；
		No black spots, black stripes；
		NO welding marks、stud prints；
		No local pits；

		Allow slightly scratched， please take the tactility as the standard；

		No handwriting；
4	angle	Angle error			≤1°	universal bevel protractor
5	argon arc welding	1、Full welding or spot welding in accordance with the drawing；			Visual inspection
		2、The weld is neat and smooth；
		3、Deformation should meet the technical requirements of shape, size and above board.
6	riveting	The rivet doesn't tilt; Rivets broken, rivets are not loose;			Visual inspection and hand dipping
7	stud welding bolt	Stub firm，no depinning；			tensile testing machine
		Tensile resistance of each kind of welding bolt＞1KN
8	mark	Marks consistent with production planning, font neat, legible and accurate
9	bending	No flanging crack			Visual inspection