nba篮彩推荐群:Hardware technology explanation
虎扑篮彩神棍讨论 www.bplynl.com.cn Hardware: Traditional hardware, also known as "small hardware." Refers to five metals: gold, silver, copper, iron and tin. It can be made into art or metal parts such as knives and swords by manual processing. Modern society has more extensive hardware, such as hardware tools, hardware parts, daily hardware, construction hardware, and security products.
Metal processing can also be called metal processing. Turning and milling, etc., modern machining has increased electrical discharge machining. In addition, die casting, forging, etc. are also commonly used processing methods. If it is purely involved in sheet metal, then milling, grinding, wire cutting (discharge type) and heat treatment are commonly used. Hardware processing can be divided into: automatic lathe processing, CNC machining, CNC lathe processing, five-axis lathe processing, according to roughly can be divided into: metal surface processing, metal forming processing two categories.
First, the hardware surface processing subdivision can be divided into: metal painting processing, electroplating, surface polishing processing, hardware corrosion processing and so on.
1. Painting processing: At present, the hardware factory adopts spray painting processing when producing large-sized hardware products, and the hardware avoids rusting by painting processing, such as: daily necessities, electrical enclosures, handicrafts, etc.
2, electroplating: electroplating is also the most common processing technology for metal processing. Through the modern technology, the surface of the hardware is electroplated to ensure that the product does not undergo mildew and embroidered for a long time. The common electroplating processes are: screws, stamping parts, Cell sheets, car parts, trinkets, and more.
3, surface polishing processing: surface polishing processing is generally used in daily necessities, through the surface burr treatment of hardware products, the sharp corners of the corners are thrown into a smooth face, so that in the process of use will not cause harm to the human body.
Second, the hardware molding processing mainly includes: die casting (die casting and cold pressing and hot pressing), stamping, sand turning, investment casting and other processes.