Electroplating is a common method of surface treatment for hardware screws and other fastener products. Under normal circumstances, the quality of electroplating is mainly measured by its corrosion resistance, followed by appearance. Corrosion resistance is to imitate the working environment of the product, set it as the test condition, and conduct a corrosion test on it. The quality of electroplating […]

Electrophoresis has been increasingly widely used in various fields such as analytical chemistry, biochemistry, clinical chemistry, toxicology, pharmacology, immunology, microbiology, and food chemistry. The matte electrophoretic coating of aluminum alloy is applied on the surface of the anodic oxide film. Similar to bright electrophoresis, its production process is as follows: Degreasing → water washing → alkaline corrosion → water washing […]

With the continuous research and development of new technologies, “3D printing” has become more and more widely used, such as industrial design, dental and medical industries, construction engineering, information systems, aerospace, etc. 3D printing has slowly penetrated into all aspects of our lives. Bring us convenience and reduce costs. Today, the editor will take everyone to take a look at […]

A certain film is formed on the surface of the tool by chemical or physical methods (ie coating process), so that the cutting tool can obtain excellent comprehensive cutting performance, thereby meeting the requirements of high-speed cutting; since the advent of hard-coated tools in the early 1970s , Chemical vapor deposition (CVD) technology and physical vapor deposition (PVD) technology have […]

Galvanized steel sheet is to prevent corrosion on the surface of the steel sheet and prolong its service life. The surface of the steel sheet is coated with a layer of metal zinc. This kind of galvanized steel sheet is called galvanized sheet. Galvanizing is an economical and effective anti-rust method that is often used. About half of the world’s […]

Electroplating zinc-nickel alloy refers to the formation of a coating film on the surface of the plated parts at a ratio of zinc to nickel 9:1. This protective coating has developed rapidly in recent years due to its excellent corrosion resistance and is widely used in automobiles, aviation, electronics and other industries. Following the rapid development is the increase in […]

Plastic is a polymer compound that is polymerized by monomer as raw material through addition polymerization or polycondensation reaction. It is commonly known as plastic or resin. The composition and shape can be freely changed. It is composed of synthetic resin and fillers, plasticizers, stabilizers, and lubricants. , Pigment and other additives. The main component of plastic is resin. Resin […]

Hot-dip galvanizing (hot-dip galvanizing) refers to the method of immersing the plated fasteners in liquid metal zinc or its alloy for plating. Hot-dip galvanizing is widely used to protect steel and its parts from atmospheric corrosion, and is especially suitable for mass production of standard parts and fasteners. Hot-dip galvanizing of fasteners has the following characteristics: ⑴A thick coating can […]

Machining is currently undergoing rapid development. In addition to knowing the problems that need to be paid attention to in machining and the causes of errors in machining, the machining staff in this field must also understand the pollution that machining is prone to produce, so as to optimize treatment and reduce environmental impact. The pollution of the world contributes […]

Eight precautions for stainless steel welding 1. Chromium stainless steel has certain corrosion resistance (oxidizing acid, organic acid, cavitation), heat resistance and wear resistance. It is usually used for power station, chemical, petroleum and other equipment materials. The weldability of chromium stainless steel is poor, so attention should be paid to the welding process and heat treatment conditions. 2. Chromium […]