Die Casting
Application Of Metal Precision Die-casting Technology in The Field Of Hardware Tools
With the rapid development of my country's economy and science and technology, gradually, the strength of all walks of life in my country has also become huge, especially my country's die-casting industry has made great development achievements in recent years, and can be used for wind and water. describe its development. At the same time, with the continuous development of the die-casting industry and the continuous improvement of domestic scientific and technological strength, there are now countless hardware die-casting factories and tens of thousands of die-casting parts on the market, so there is no doubt about it. It can greatly meet the different needs of users. So, what are the application areas of die castings?
Die-cast aluminum hand-turned housing
Die casting is a kind of pressure casting parts, and its application field is very wide. At present, it has been used in hardware and the entire mechanical and electronic industry, and its use is becoming an expanding trend. The specific application scope of die castings mainly includes: hardware tools, automobile manufacturing, internal combustion engine production, motorcycle manufacturing, motor manufacturing, oil pump manufacturing, transmission machinery manufacturing, construction, hardware, equipment, machine tools, ships, aerospace, automobiles, locomotives, electronics , computers, electrical appliances, lamps and many other fields. In addition, I would like to remind everyone that you must go to a regular and professional hardware die-casting factory to buy high-quality die-casting parts.
Die casting alloys include aluminum alloys, zinc alloys, magnesium alloys, and the like. According to the statistics of relevant departments in 2009, aluminum alloys accounted for 73%, zinc alloys accounted for 24.7%, and magnesium alloys accounted for 0.8%. In summary, the application range of die-casting parts is wide. Aluminum alloy die-casting is indeed a promising process method to expand the scope of application. The main trend is to develop large-scale pressure parts production, bearing parts die-casting production, die-casting production automation, black alloy die-casting and the development of melting point, thermal fatigue, resistance A lot of work has been done at home and abroad in the above-mentioned aspects such as mold materials with good thermal cracking tendency and prolonging the service life of die-casting molds, and certain results have been achieved. Aluminum alloy die-casting is a high-efficiency and high-efficiency casting method. Under the situation that high-tech is applied to actual production, die-casting will surely achieve faster development.
Analysis of possible problems in the process of aluminum alloy die casting:
1. Geometric defects: the shape and size of the die casting deviate from the technical requirements; the size is out of tolerance, deflection, deformation, etc. Surface defects: the appearance of the die casting is poor, with patterns, flow marks, cold partitions, shift points, lack of meat, etc. Burrs, sink marks, strains, etc. Internal defects: pores, shrinkage cavities, shrinkage porosity, cracks, inclusions, etc., the internal structure and mechanical properties do not meet the requirements.
2. Influencing factors
(1) Caused by the die-casting machine: the performance of the die-casting machine, whether the energy provided can meet the required injection conditions: whether the injection force, injection speed, and clamping force are sufficient. Whether the selection and regulation of die-casting process parameters are appropriate, including pressure, speed, time, punch stroke, etc.
(2) Die-casting mold causes Mold design: mold structure, gating system size and position, ejector pin and layout, cooling system. Mold processing: mold surface roughness, machining accuracy, hardness. Mold use: temperature control, surface cleaning, maintenance.
(3) The design of die castings causes wall thickness, corners, draft angles, hot joints, deep recesses, etc. of die castings.
(4) Die casting operation causes alloy pouring temperature, smelting temperature, coating amount and operation, production cycle, etc.
(5) Alloy material causes the composition, cleanliness, ratio, smelting process, etc. of raw materials and returned materials. Incorrectness of any of the above factors may lead to defects. Intuitive judgment: Analyze the surface quality of castings with the naked eye, and visually see patterns, scratches, concave, deformation, cold insulation, discoloration, spots, etc., or use a magnifying glass to magnify more than 5 times for inspection.
To sum up, die castings have completely entered the domestic mechanical and electronic industry, and its application range is still expanding over time, so there is no doubt that it will be a comprehensive part of the country. National strength has made a huge contribution. Finally, if you want to buy die-casting parts or consult more details about die-casting parts, you must choose an excellent hardware die-casting factory—Qinhuangdao Zhongwei Precision Machinery Co., Ltd.