mold,molding

  1. Nitrogen gas springs   can be roughly divided into four categories according to its basic structure： ISO International Standard Type ISO  nitrogen gas spring  are the most commonly used typical types of nitrogen gas springs. All technical parameters comply with the ISO11901 gas spring international standard; B-type gas springs also comply with FORD-WDX3560 (Ford), GM-M-150 (General) and Renault (Renault). ) And other company's nitrogen gas spring standards. Compact Structure Type The compact structure is also called J-type nitrogen gas spring, which is one of the series of nitrogen gas springs. The full name is J-type compact nitrogen gas spring. The J-type compact nitrogen gas spring is a type that is popular among mold designers. Compared with the B-series nitrogen gas spring, it has a shorter cylinder base length, so the total length is also shorter, which can reduce the design height of the mold. It is a special nitrogen for molds. One of the preferred varie...

  Reactor is an indispensable important component of the entire power system. The reactor generally used in the frequency converter can not only prevent the interference from the grid, but also reduce the pollution of the grid by the harmonic current generated by the rectifier unit. Therefore, the choice of its insulating material must be cautious. Relevant departments have determined that today's   FR4 epoxy board   is the best insulation material for reactors. Next, let's take a concrete look at why FR4 epoxy board is used as an insulating material? FR4 is made of epoxy resin impregnated with electrical glass cloth by high temperature and hot pressing. It has the characteristics of good insulation, high temperature resistance, and good mechanical strength. And there is no need for regular testing, which greatly saves manpower and material resources. The high temperature resistance of FR4 can reach 160 degrees. Even in the scorching summer, there is no worry that it will...

Nitrogen gas spring for mold/die   (referred to as die gas spring or nitrogen gas spring or nitrogen cylinder or nitrogen cylinder) is a new type of elastic component that uses high pressure nitrogen as the working medium. Nitrogen Spring Features: Its small size, large elasticity, long stroke, stable work, precise manufacturing, long service life (one million times), flat elasticity curve, and no need for pre-tensioning, etc. Nitrogen Gas Spring Function: It has tasks that are difficult to complete with conventional elastic components such as metal springs, rubber and air cushions, simplifies mold design and manufacturing, facilitates mold installation and adjustment, extends mold life, and ensures stable product quality. It can also be designed as a nitrogen spring The system, as a part of the mold to participate in the work, can easily achieve constant pressure and delayed action in the system. It is a new generation of the most ideal elastic component with flexibility. We are t...

  FR4 G10 epoxy board  is a kind of high polymer that can be used in medium temperature environment. It is also a typical insulating material. Its main component is epoxy resin, so it will generally show heat deformation at a high temperature of 180°C. In order to ensure its integrity, it is generally not heated together with other metals. In addition, we must also pay attention to whether it is toxic. Although the raw materials used in manufacturing are non-toxic, whether the products produced are toxic or not depends on the manufacturing process. When using epoxy resin to make various products, Other substances or solvents may be added to make the performance of the epoxy resin itself changed and become toxic. Epoxy resin is generally used together with additives. According to the different additives, it can be judged whether the products are toxic. Generally, the main additives of epoxy resin are curing agent, modifier, filler, diluent, etc., which determine whether the pro...

  The aluminum profile industry has become a very mature industry. The aluminum density is only 2.7g/cm. Although it is soft, it can be made into duralumin, hard aluminum, rust-proof aluminum, cast aluminum and other aluminum alloys. Nowadays, the application of aluminum housing is very extensive, let us see how to judge the quality of aluminum housing? 1. The text on the surface of the aluminum shell material is generally printed with imported inkjet codes. The text is clear, and the trademark identification, manufacturer, address, telephone, etc. are generally clearly marked. The text on the surface of the real fake aluminum veneer material is mostly printed by ordinary printing machines. Blur, its manufacturer, display etc. 2. The aluminum outer packaging material is made of high-quality raw materials, with high technical precision, and the surface and inner layers feel smooth and even. 3. The wall thickness of the aluminum shell is uniform, the aluminum veneer material is tight...

  Precision hand surface grinding machine 1. Basic knowledge of grinding Type, characteristics and process of grinding Abrasive and abrasive tools Grinding fluid Safety protection Common grinders and  auxiliary equipment of  grinders  (introduction and application methods of grinders and other auxiliary equipment of grinders, including flat clamp, inclinometer, sine table, sine gauge, arc perspective dresser, punch molding machine,  punch grinding machine  and various self-made tools and equipment); Balancing and dressing of grinding wheel Matters needing attention before processing (should include safety knowledge, machine tool maintenance, work specification, dressing of platform and plate) 2.Plane (should include all kinds of material processing and grinding wheel selection rules, such as aluminum, brass, copper, all kinds of mold steel, white steel and so on.And grinding flakes for deformation) 3.Right Angles 4.Groove cutting (should include selection, ...

  The   fr4 epoxy board   is a code for the grade of flame-resistant material, which represents a material specification that the resin material must be able to extinguish itself after the burning state. Epoxy resins generally refer to organic polymer compounds containing two or more epoxy groups in the molecule. Except for a few, their relative molecular mass is not high. The molecular structure of epoxy resin is characterized by the active epoxy group in the molecular chain. The epoxy group can be located at the end, middle or in a cyclic structure of the molecular chain. Because the molecular structure contains active epoxy groups, they can undergo cross-linking reactions with various types of curing agents to form insoluble and infusible polymers with a three-way network structure. The advantages of cnc machining fr4 epoxy board 1. Various forms: various resins, curing agents, and modifier systems can almost adapt to the requirements of various applications on th...