Date：2022-03-09 13:45:00

Composite materials are materials with new properties composed of two or more materials with different properties through physical or chemical methods. Various materials learn from each other in performance and produce synergistic effect, so that the comprehensive performance of the composite is better than that of the raw materials to meet various requirements. The matrix materials of composites are divided into metal and non-metal. Aluminum, magnesium, copper, titanium and their alloys are commonly used in metal matrix. Non metallic substrates mainly include synthetic resin, rubber, ceramics, graphite, carbon, etc. Reinforcement materials mainly include glass fiber, carbon fiber, boron fiber, aramid fiber, silicon carbide fiber, asbestos fiber, whisker, metal wire and hard fine particles. View >>

Date：2022-03-09 13:25:00

Coating / plating can not only decorate the appearance of parts and repair the surface defects of parts, but also give special properties to the surface of parts, including improving surface hardness, wear resistance, corrosion resistance, conductivity and high-temperature oxidation resistance. The products involved include household appliances, automobiles, doors and windows, metal fasteners and electronic products. Due to the new requirements of technology and the high requirements of products, and customers' different understanding of high-demand products and processes, failures such as delamination, cracking, corrosion and discoloration of coating / coating materials occur frequently, which often leads to responsibility disputes between suppliers and users, resulting in serious economic losses. Through a series of analysis and verification means of failure analysis, the root cause and mechanism of failure can be found. It has important significance in improving product quality, process improvement and responsibility arbitration View >>

Date：2022-03-08 14:55:00

PCB has become the most important and key part of electronic information products. The quality and reliability level of the whole equipment determine the quality and reliability of the whole equipment. Due to the reasons of cost and technology, there are a lot of failure problems in the production and application of PCB. For the same failure mode, the failure mechanism is complex and diverse. Correct analysis ideas, careful logical thinking and diversified analysis methods are needed to find the real failure cause. View >>

Date：2022-03-08 14:42:30

With the advent of the electronic information age, there are a wide range of electronic products on the market, as well as various electronic components such as IC chips and diodes, which are difficult to distinguish between true and false. We not only need to buy genuine products, but also need to buy chips with matching models, so that we can use such chips normally and purchase quality guaranteed chips through formal channels. However, there are many products in the market. As a purchaser, how to identify the authenticity and authenticity of the chip? Share new authentic identification methods for reference only. View >>

Date：2022-03-08 14:00:00

Through comprehensive analysis and testing methods, Chuangxin online testing center can help customers analyze the failure causes of polymer materials and composites, provide scientific basis for fracture, cracking, corrosion and discoloration of polymer materials, cracking and delamination of composite materials in scientific research and production, and conduct fracture analysis, composition analysis, mechanical property comparison Thermal performance comparison, failure recurrence / verification and other tests, so as to provide a basic basis for material selection and use. View >>

Date：2022-03-07 14:05:19

Definition of welding defect: the incompleteness of welded joint is called welding defect. Classification of welding defects: from a macro point of view, it can be divided into cracks, holes, solid impurities, incomplete fusion, incomplete penetration, shape defects and other defects. From the microscopic point of view, it can be divided into point defects of crystal space and interstitial atoms, line defects of dislocation, and plane defects of grain boundary. Micro defect is a hidden factor that develops into macro defect. View >>

Date：2022-03-07 13:58:54

There are a variety of IC chips on the market. If you don't pay attention to the distinction, it's difficult to see the difference between various materials, whether they are true or false, brand-new or refurbished. In the IC procurement process, the most worrying thing for purchasers is not the price, but the product quality. The manufacturing process of chip is very complex. It needs to go through thousands of processes. Monocrystalline silicon processed by complex process is widely used. According to the American Semiconductor Industry Association (SIA), American chip companies lose $7.5 billion a year due to counterfeit products. If defective chips are installed on aircraft, cars or medical equipment, it will become a matter of life and death. View >>

Date：2022-03-04 15:40:20

February is the shortest month of the year. Because of the Spring Festival holiday, there are only three weeks to work. But this short three weeks is worth saying a lot, and all determine the direction behind the chip market. The first thing to mention is that the price rise of out of stock is not limited to IC materials, and flash memory has now joined the price rise tide. In addition, the situation in Russia and Ukraine and the local epidemic also harassed the supply chain and exacerbated the expectation of shortage. View >>

Date：2022-03-04 15:15:00

Reliability testing is to expose the product to natural or artificial environmental conditions and undergo its function, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and study the influence degree and action mechanism of environmental factors. The reliability life of products is tested through the use of various environments. For different products, in order to achieve different purposes, different reliability test methods can be selected. View >>

Date：2022-03-04 14:14:00

What is safety testing? Safety regulation test is the requirements for product safety, including the safety requirements of product parts and the safety requirements after the composition of finished products. The scope of safety regulation test includes information products, audio and video products, household appliances, lighting products, toys, on-board electrical products, other electrical products, electronic and electrical components, wireless remote control products, etc. How to obtain products with complete quality and no harm to users has become a factor gradually valued by consumers. In order to better protect the rights and interests of consumers, product safety certification is bound to be more and more extensive and paid more and more attention. So what are the safety test items? View >>