跳至主要内容

The advantages of cnc machining fr4 epoxy board

 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 the form, ranging from extremely low viscosity to high melting point solids.

2. Convenient curing: Choose a variety of different curing agents, and the epoxy resin system can be cured at a temperature range of 0～180℃.

3. Strong adhesion: The inherent polar hydroxyl and ether bonds in the molecular chain of epoxy resin make it have high adhesion to various substances, low shrinkage during curing, and small internal stress. , Which also helps to improve adhesion strength.

4. Low shrinkage: The reaction between epoxy resin and curing agent is carried out by direct addition reaction or ring-opening polymerization reaction of epoxy groups in resin molecules, and no water or other volatile by-products are released. Compared with unsaturated polyester resin and phenolic resin, they show very low shrinkage (less than 2%) during curing.

5. Mechanical properties: The cured epoxy resin system has excellent mechanical properties.

6. Appearance: Appearance includes surface finish and color. China’s traditional standards and current standards have no color regulations, that is, they are all natural colors. Some national standards allow several prescribed colors. These colors are obtained by adding colorants Because any colorant has a negative impact on the performance of the board, considering the specific application of the insulating board, natural color should be better; in the relevant production process, stainless steel equipment is used to make the light Color products, such as the use of ordinary carbon steel equipment, the color of the product becomes darker; in addition, the color will become darker with the extension of storage time, so the color of the plate seen on different occasions is diverse.


Get your CNC machining FR4 projects started today

When you send out 3D CAD documents to us, JY Machinery will provide you with instant price, on-demand delivery time, as well as design for manufacturability comments for your customized CNC machining components on materials and also producing process, to make sure that the component can meet your expectations as well as budget plan demands.

Get in touch with us today for a free quote!
Skype: Chat on Skype
Email: info@jycncmachining.com
Phone: +86 15905915652

标签：

评论

发表评论

此博客中的热门博文

What is Guide Pin ?

  1.Definition of guide pin The  guide pin  is a guide element used in the mold in combination with the components to ensure that the mold moves and guides the mold stroke with precise positioning. They are generally cylindrical with shoulders and usually have oil grooves. 2.The material of the guide pin The material of the  guide pin  is generally selected from bearing steel, hot work die steel, easy car iron, etc., and the use of bearing steel SUJ2 is larger, which greatly enhances the durability and interchangeability of the guide post in terms of guiding performance. The guide post and components constitute the outer guide post component and the inner guide post component, which have a beautiful metallic luster. Heat treatment of guide post: HRC58-62; surface roughness of guide post: Ra0.8, Ra1.6. 3.Center hole of guide pin The roundness of the  guide pin  is very demanding. The central hole is mainly used to grind the outer diameter with a cylindr...
发表评论
阅读全文

Precision CNC Milling Service: What Factors Affect CNC Machining Cost?

  How to save CNC milling costs? Why some custom  CNC milling services  are expensive? Firstly, we may need to know the cost factors for CNC milling services. 1)Stock Material As with any type of manufacturing, Stock material is the most basic cost. Some materials are more difficult to process than others, and some materials are more expensive as raw materials. The processing speed of some materials is much slower than others, even with the advancement of modern tools and mechanical technology. Some materials can wear out the expensive consumable cutting tools used more quickly, and can vary from one tool that makes hundreds or even thousands of parts to one part consuming multiple tools.Therefore, the material selection of your components can be a huge cost factor. 2)The Specification of  CNC Machining Parts The size and overall geometry of the parts are of course important factors in the quotation of machining operations. Obviously, the larger the physical part, th...
发表评论
阅读全文

Functions of Guide Pins and Bushings

  As machine tool accessories and   mold parts ,   guide pins and bushings   are in demand day after day in the development trend of various industries.In recent years,   good-selling guide pins and bushings   have been used in large numbers and widely, providing powerful and favorable market prospects for more industries.At the same time, in a variety of occasions, the   guide pin and bushing   have been unanimously favored and praised, and its role is immeasurable.So, let's take a look at its main functions in   machine tools or molds ? 1.Orientation and positioning In the production of molds,  good quality guide pins and bushings  play an important role in this. Its mission in the production process is to guide and position. Moreover, in the process of moving mold and fixed mold, in order to make the mold appear in place and the whole work process does not cause errors and failures due to some problems, it is its mission to fully...
发表评论
阅读全文