TAIZHOU HEYA MOULD CO., LTD.

  How to Improve Precision of Mold Polishing Quality? In mold manufacturing process, forming portion of mold often requires surface polishing. Mastering  polishing technology can improve quality and service life of mold, thus improve quality of product. Mold polishing method and working principle Mold polishing usually uses oil stone strips, wool wheels, sandpaper, etc., so that surface of material is plastically deformed and convex portion of workpiece surface is removed to obtain a smooth surface, which is generally performed by hand. Method of super-fine grinding and polishing is required for high surface quality. Super-fine grinding and polishing is made of a special grinding tool. In polishing liquid containing abrasive, it is pressed against machined surface to perform high-speed rotary motion. Polishing can achieve a surface roughness of Ra0.008 μm. Common tools and specifications for mold polishing 1) Common tools for mold polishing include: sandpaper, oilstone, felt wheel, abr

  Quenching, tempering, normalizing, annealing, do you know clearly? In order for metal workpiece to have required working properties, a heat treatment process is often necessary. Heat treatment process generally includes three processes of heating, heat preservation and cooling. It is divided into quenching, tempering, normalizing, annealing, etc. depending on process. Can you distinguish it? What is quenching? Quenching of steel is to heat steel to a temperature above critical temperature Ac3 (hypegmatized steel) or Ac1 (hyper-eutectoid steel), hold it for a period of time, make it all or part austenitized, and then rapidly cooling to a temperature below Ms (or isothermal near Ms) at a cooling rate greater than critical cooling rate. Solution treatment of materials such as aluminum alloys, copper alloys, titanium alloys, tempered glass, or heat treatment process with a rapid cooling process is also referred to as quenching. Purpose of quenching: 1) Improve mechanical properties of me

 Auto parts mould In general, " auto mould " is the general term for the moulds used to manufacture all automobile parts. For example, injection moulds, stamping molds, forging molds, casting wax moulds, glass moulds, etc. The body of the car will appear in front of people When they talk about cars. In other words, the body is the identifying assembly of the car. The body represents the image characteristics of that car. In a narrow sense, automobile mould is the general name of the mould for punching all stamping parts on the automobile body. That is, "automobile body stamping die". For example, the top cover flanging die, the beam reinforcement plate pressing die, etc. The most important part of the automobile mould is the cover mould. This type of die is mainly a cold die. In general, "automobile mould" is the general term for the molds used to manufacture all parts of automobiles. For example, stamping moulds, injection moulds, forging molds, casting w