Injection molding machine
　　injection molding machine (injection molding machine) has two basic components: a molten plastic into the injection device and the mold clamping device and mold. Acting mold clamping device comprising:
　　1, in the mold to withstand injection pressure in the case is closed;
　　2, the article is removed before the plastic injection device is injected into the mold to melt, and then control the pressure and velocity will be melt injected into the mold. The injection device now used in two designs: a pre-plasticizing screw or two-stage device, and a reciprocating screw. Screw preplasticator using a pre-plasticizing screw (first stage) and then injecting molten plastic injection rod (second stage).
　　Screw preplasticator advantage is constant melt mass, pressure, and velocity, and precise injection quantity control (both ends of the piston stroke using the mechanical thrust means). These advantages are transparent, thin-walled products and high production rates required. Disadvantages include non-uniform residence time (leading to degradation of the material), higher equipment costs and maintenance costs.
　　The most commonly used device need not reciprocating screw injection plunger and injection of the molten plastic coming.
　　Type injection molding machine: vertical, horizontal, all-electric, but regardless of the kind of an injection molding machine, which has two basic functions:
　　(1) heating the plastics material to reach a molten state;
　　(2) high voltage is applied to the molten plastic so emitted and fill the mold cavity.
　　Low cost injection
　　① effective Materials Engineering:
　　1, no heat regenerative dehumidifying: more than 50% saving, environmentally friendly (no regeneration gases);
　　2, strong cleaning screw, to prevent undesirable black spots
　　3, recycling material, foreign matter mixed preventing
　　② energy efficient engineering:
　　1, saving injection molding machine:
　　2, cylinder induction heating: saving 50% +
　　3, the insulating coating material: coating 3mm, used in any place, saving 30% +
　　③ short cycle engineering:
　　1, in the library cycles: finished products, raw materials, and so defective products
　　2, shorten the molding cycle, molding cooling pulse
　　④ latest pulse cooling technology and equipment, to reduce the mold cooling period;
　　1, improved molding technology, reduced molding cycle. Comprising: a mold to improve defect / defects in the molded article, the molding process optimization, and improved new mold defect test mode, reducing the defect rate within the project;
　　2, shortened operation time, fast switching die
　　3, molding engineering improvement, reducing the time required. Comprising: an automatic / semi-automatic operation, the mold fast switching, the robot operation, the robot fast switching operation, a machine a person working, multi one job
　　brass nut
　　before
　　the injection copper nut and can be understood as a damascene copper nut or embedded copper nut, in today's emergence of different injection brass nut on the market, use is also different.
　　Principle
　　The main purpose of the copper insert is injection molded product in a number of plastic parts, after installation can form an effective internal thread in the plastic. Its job is to embed the heating mode to the product inside the plastic injection mold or used directly. Since brass having good thermal conductivity, after heating the copper insert may be pressed into the plastic matrix of the product rapidly heats to accelerate the efficiency, the copper insert may be heated to quickly transfer heat to the plastic, so that the plastic softened around the hole, so that the product quickly pressed into the hole. If the injection mold, copper inserts into injection molded plastic parts are heat since the outer diameter after the embossing process, after forming a copper insert and a certain friction force and bite, which can be fixed so that it can not fall so.
　　Uses
　　widely used products: cell phones, laptop computers, a variety of plastic frames, communications, micro-motors, computers, electrical appliances, electronics, toys, watches and clocks, lighting, locomotives and other industries.
　　Types of
　　Nowadays the main types: CNC computer car parts, cell phone nut, knurled nuts, hot nuts, hot nuts, nut embedded, ultrasonic nuts, nut injection molding, insert nut, copper shaft, pillars, copper sleeve, copper cup Shi, precision shaft and non-standard screw nut 20 categories, on 10,000 kinds of specifications.
　　Raw materials
　　are: environmental protection copper, H3604 copper, 303 stainless steel in Japan, 24C easy to iron, aluminum, steel race.