[China Aluminum Network] aluminum hardness is generally measured with the Webster hardness tester. The national standard GB5237-2004 stipulates that 6063 aluminum profile hardness should be greater than 8HW, 6061 aluminum profile hardness should be greater than 10HW. China Nonferrous Metals Standard YB/T420-2000 specifies the method for the inspection of aluminum profiles. The W-20 Vickers Hardness Tester for aluminum profile inspection is a small portable instrument for quick and easy measurement of the hardness of aluminum profiles, pipes and plates. It is especially suitable for the rapid and non-destructive hardness inspection of aluminum profiles at the production site, sales site or construction site. This instrument has passed the performance test of the national technical supervision department and obtained the manufacturing license for measuring instruments. License number: Liao. The W-20 Vickers Hardness Tester is one of the two types of instruments approved by China Nonferrous Metals Industry Standards YS/T420-2000. The instrument has been applied to most aluminum profile factories and many curtain wall enterprises, aluminum profile use units and projects in China. Quality inspection technical supervision department. use 1. Determine whether the aluminum profile has heat treatment, check the effect of heat treatment, and determine whether the aluminum profile has acceptable mechanical properties. 2. Determine whether the aluminum profile is processed from an inappropriate alloy and determine whether the aluminum profile alloy composition is acceptable. 3. Inconvenience to the laboratory of measuring too long, heavy parts or assemblies. 4. For aluminum production inspection, acceptance inspection and quality supervision and inspection. main feature 1. Small size, light weight, one-handed operation, easy to carry. 2. Can measure a variety of aluminum profiles. 3. Simple operation, operating skills have no effect on readings. 4. Easy to read, can be easily converted to other hardness values. Measuring range It is mainly used for measuring aluminum profiles and aluminum alloy materials, but also copper alloy materials. Its measurement range is equivalent to: Aluminum profiles: 24～110HRE Copper alloy: 60～90 HRF Heat insulation aluminum profiles With the gentrification of the living environment, new heat-insulating aluminum profiles have been exported from abroad to China. Each aluminum profile production company has introduced foreign insulation broken bridge wear strip equipment, and domestic enterprises engaged in aluminum profile processing equipment have also developed thermal insulation broken bridge wear strip equipment. All hope to push the new type of heat insulation aluminum extrusion market. The production cost of insulation aluminum profiles is higher than that of ordinary aluminum profiles, which increases the number of processes such as through-oxidation, spraying, and stripping. Through the connection of the broken bridge, the silver oxide white material can be connected with the color spray paint, the sand fabric and the coloring material; and the decorative feeling of the aluminum profile can be increased. The future development of five aluminum profiles According to predictions of relevant experts, aluminum profiles will develop in five directions: 1, matte surface aluminum profiles. The matte surface aluminum profile avoids the disadvantages of the bright alloy profile in the architectural decoration under certain environmental conditions to form light pollution, and its surface is delicate and soft, so it is favored by the market. However, the existing matte aluminum profiles have the disadvantage that the surface sand material is uneven and the grain can be seen. 2, multi-tone surface aluminum profiles. At present, the monotonous silver-white color of aluminum profiles can no longer meet the needs of building exterior wall decorative tiles and exterior wall latex paints. The new aluminum profiles are available in stainless steel, champagne, gold and other colors, plus the color of the stained glass, which can make the building decoration effect more ideal. 3, powder electrostatic spraying aluminum profiles. Powder electrostatic sprayed aluminum profiles have excellent corrosion resistance and alkali salt spray resistance is much better than oxide colored aluminum profiles. Due to the adoption of green environmental protection technology, the production of such aluminum profiles has a small footprint, simple process flow, convenient operation, energy and resources conservation, low investment, quick results, high spraying efficiency and wide application, and has been adopted by various countries in the world. 4. Plasma enhanced electrochemical surface ceramics and electrophoretic painted aluminum profiles. It has more than 20 kinds of colors, according to the needs of the same as the printing cloth color, aluminum colorful, decorative effect is excellent. Because the surface of the aluminum profile is a ceramic film layer formed by high-energy arc discharge sintering, it has a high degree of finish, a film thickness, and a high density and corrosion resistance. The technology has been identified by the China Corrosion Association and the Society of Protection and has been identified as a replacement technology for positive oxidation. 5, electrophoretic paint aluminum profiles. Electrophoretically painted aluminum profiles have a soft, lubricious surface that resists the erosion of cement, mortar, and acid rain. In 2004, the company established its own mechanical processing plant, matching the assembly personnel, making the company's parts quality and assembly level for the hardness test of aluminum profiles for hardness testing have been greatly improved. In the measurement accuracy, stability, failure rate and other aspects have fully caught up or close to the level of foreign instruments. At the end of 2004, the company issued a “letter on product quality update†to all users of the Wechsler hardness tester for aluminum profile hardness testing that can be found, notifying users that they would purchase the products previously purchased by the company for use at the time of convenience. The Vickers hardness tester for aluminum profile hardness testing was sent back to the company for quality update. We use newer technologies and high-quality parts for these instruments free of charge, replace unreliable parts, eliminate possible points of failure, maintain and re-commission the entire machine, and then return it by postal express mail free of charge. At present, this work has basically ended and a large number of instruments have been updated. With the strength of a small company, the company opened the door to domestic manufacturing, costing more than 100,000 yuan, and took the lead in implementing product recalls, which has won wide acclaim from users. In early 2006, the company's W-20 Wechsler hardness tester for aluminum profile hardness testing was sold to the U.S. market in 20 batches at a time. This marks the quality of domestic Wechsler hardness tester for aluminum profile hardness testing with its excellent quality. , low prices and convincing after-sales service and foreign similar instruments began a positive market competition. ( Stainless Steel Coat Hook,Robe Hooks Bathroom,Coat Hook For Home,Coat Hook Stainless Steel Heshan Zhongxin Sanitary Ware Ind., Co., Ltd , https://www.baolongfaucets.com
(This article is from the world of electronic engineering: http://Test_and_measurement/2013/0508/article_7287.html)