Plastic Parts
Sheet metal practical knowledge
First, the definition of sheet metal
Sheet metal is a comprehensive cold working process for metal sheets (below 6mm). The main processes include shearing, punching, cutting, folding, riveting, splicing and forming. The most notable feature is the same thickness of the same part.
Second, the material
SPCC: ordinary cold rolled sheet
SECC: galvanized steel
SGCC: hot-dip galvanized steel
SPHC: ordinary hot rolled sheet
Third, sheet metal processing
Material Shearing/Striping--->Chong/Cut/Folding/Volume--->Riveting Welding--->Surface Treatment
Fourth, the hardware surface treatment
A. Spray: Contains fuel injection, fuel injection, and baking paint.
B. Electroplating (mainly for products with high appearance requirements)
C. Anodizing (mainly for aluminum products)
D. Electrophoresis (door and window use)
E. Dip (Teflon dipping), mainly for iron mesh products
Five the characteristics of sheet metal
Agree that the thickness of the parts is consistent, light weight, high strength, electrical conductivity, low cost, good mass production performance
Sixth the processing time of hardware products (usually 10~15 days)
Material order: 1-3 days
Shearing, flat, slitting: 1-2 days
Stamping: 2-5 days
Bend: 2-5 days
Machining (drilling and tapping): 1-3 days
Welding: 1-3 days
Surface treatment: 3-5 days
Seven, metal mold
A, die steel: A3, 45#, CR12, SKD11, DC53, SKH-9
B, mold processing and time
Order mold steel (1-3 days) ---> wire cutting (2-5 days) ---> heat treatment (2-5 days) ---> mold (with mold) 2 days ---> test mode (1 day), it takes about 10-15 days to manufacture the mold.
Eight, the hardware industry prospects Hardware is mainly used in the fields of machinery, construction, decoration and daily necessities.
With the development of science and technology and the advent of the information age, hardware manufacturing enterprises are required to become more and more specialized and efficient. In the future, there will be more and more customized requirements for the hardware industry. The speed of response, quality, delivery, and support are the key to success for enterprises. The hardware industry in the Pearl River Delta region is mainly concentrated in Foshan. The main raw material market is Foshan. Dongguan is the world's manufacturing and processing center, enjoying a good reputation in the world,
