Cast aluminum is a process in which aluminum in a molten state is poured into a mold and cooled to form an aluminum part of the required shape. Castings obtained by casting aluminum are called aluminum castings. The aluminum used in cast aluminum is called: cast aluminum alloy.
In the process of casting aluminum castings, it is easy to produce defects such as internal porosity, shrinkage holes, pores, etc. After these defective castings are machined, the surface dense layer components are removed and the internal structural defects are exposed. For automotive cast aluminum parts with sealing requirements, such as cylinder blocks, cylinder heads, intake manifolds, brake valve bodies, etc., when conducting pressure sealing tests, the existence of defective micropores will cause a large amount of leakage of the sealing medium. Waste products, and these defects are often found only after machining and pressure testing, resulting in serious waste of working hours, raw materials and energy.

In order to solve the problem of high scrap rate of automobile aluminum castings and save the castings that may be scrapped due to the above-mentioned defects, certain treatment measures must be taken in the production. The most common technique used is impregnation treatment, that is, leak plugging. The so-called "impregnation" is to infiltrate the infiltrant into the micropores of aluminum castings under certain conditions. After solidification, the filler that penetrates into the pores is connected to the inner wall of the casting pores to block the micropores and make the parts Process technology that meets the conditions of pressurization, anti-seepage and anti-leakage.

Aluminum castings have low cost, good manufacturability, remelting and regeneration to save resources and energy, so the application and development of this material are enduring. Such as research and development of cupola-electric furnace double smelting technology and equipment; extensive use of advanced molten iron desulfurization and filtration technology; thin-wall high-strength iron casting manufacturing technology; cast iron composite material manufacturing technology; cast iron surface or local strengthening technology; isothermal Yanghuo nodular cast iron complete set of technology; using metal mold casting, metal mold sand-coated casting, continuous casting and other special processes and equipment.　As a result of its low density, high specific strength, and corrosion resistance, cast light alloys will be widely used in aviation, aerospace, automotive, machinery and other industries.

Especially in the automobile industry, in order to reduce fuel consumption and improve energy efficiency, it is a long-term development trend to replace steel and iron castings with aluminum and nickel alloy castings. Among them, it focuses on solving pollution-free, high-efficiency, easy-to-operate refining technology, metamorphism technology, grain refinement technology and rapid detection technology in front of the furnace.

In order to further improve the performance of the material and maximize the potential of the material, high-quality aluminum alloy materials, especially aluminum-based composite materials, can be developed to meet the performance requirements of different working conditions; strengthen the research of the cluster alloy melting process, and continue the alloy die casting and squeeze casting Process and related technology development research; perfect ferroalloy smelting equipment and related technology and process development research.

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No matter what is used, it will cause wear, but the degree of wear is different.

Take the hydraulic accessories, for example, there are many types of hydraulic accessories, and wear will inevitably occur in the hydraulic device. At this time, we should pay attention to their maintenance problems, otherwise the time will seriously affect the use of equipment, and we need to do Good regular inspection work. Let's take a look at the reasons why hydraulic accessories wear, so that you can better use hydraulic accessories and maintain it in time.

Causes of wear on hydraulic accessories
1. First of all, the use of hydraulic accessories should be reasonable. At the same time, we must pay attention to quality problems when buying. Otherwise, if the quality of the accessories is not good, it will cause serious wear and even damage to the accessories in the short term, so the quality of the product We must pay attention to it.
2. We must pay attention to the use of hydraulic accessories, and the types of accessories are somewhat different, so we have to use them correspondingly, and it is necessary to select the appropriate accessories to ensure long-term use, and it is necessary to replace them if they are seriously worn.

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The automatic magnetic deburring and polishing machine bai mainly polishes precision parts such as turning processing, stamping, die-casting, CNC, machining, etc., removing burrs, chamfering, polishing, cleaning and other precision grinding work at one time. It only takes 3-15 minutes to complete! Does not damage the precision of the workpiece! Irregular parts, inside holes, inside pipes, dead corners, gaps, etc. can all be ground.

Suzhou Aochen deburring magnetic polishing machine, magnetic grinding machine, magnetic deburring, (zinc, aluminum, copper, titanium, stainless steel) precision small parts inner hole, gap, dead corner grinding, polishing, cleaning, deburring, etc.

Equipment introduction:

Magnetic polishing machine-uses the power of a magnetic field to guide the abrasive material (magnetic needle) to quickly rotate and grind the workpiece to achieve high-efficiency deburring (batch front), surface polishing, brightening, cleaning, oxide film removal, sintering marks, Grinding effect such as rust removal.

●The surface of the workpiece is polished, polished and smooth

●Deburring, burrs, burrs, burrs

●To remove the oxide film

●Remove traces of sintering and restore the original color of metal

●Clean and remove metal processing chips and slag

●Swivel and rounded edges

●Optimize surface plating and electric welding

●Removal of paint on metal surface

More about:stainless steel fittings factory

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