Power Fittings Manufacturers Teach You How To Determine The Quality Of Power Fittings
The power fittings manufacturer teaches you how to judge the quality of power fittings. First, we need to understand that Stainless steel & fixing nail products should meet the following manufacturing quality standards:
DL/T 768.1-2002 Power fittings manufacturing quality forged iron parts
DL/T 768.2-2002 Power fittings manufacturing quality forged parts
DL/T 768.3-2002 Power fittings manufacturing quality stamping parts
DL/T 768.4-2002 Power fittings manufacturing quality ductile iron parts
DL/T 768.5-2002 Power fittings manufacturing quality aluminum parts
DL/T 768.6-2002 Power fittings manufacturing quality welded parts
DL/T 768.7-2002 Power fittings manufacturing quality hot-dip galvanized layer of steel parts
Product testing is assessed according to three indicators, namely the key item qualification rate, general item qualification rate and total item qualification rate.
The key items are mechanical properties, electrical properties, and chemical composition; the pass rate of key items must reach ***.
The hot-dip galvanized layer is included in the general items, and the general items are size, appearance, assembly, and hot-dip galvanized layer, but the general items are judged by stricter methods, that is, if all items meet the general items, the qualified items are calculated according to the general items. If there are unqualified items, the item pass rate is calculated according to the double number of unqualified items.
When the pass rate of key items is ***, the pass rate of general items is ≥65%, and the pass rate of total items is ≥85%, the product quality is judged to be qualified, otherwise it is unqualified.
