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What are the advantages of CNC machining of radiator parts?

For friends who have been in contact with the radiator component industry, they often see or hear "CNC machining", but too much exposure does not necessarily mean that many people understand. In fact, many questions are still about CNC machining. What are the advantages? Let's take a closer look. CNC machining is an index-controlled machine tool machining, which is a method of using digital information to control the machining process. Traditional mechanical processing is done manually by machine tools. During processing, the mechanical cutter is shaken to cut metal, and the accuracy is measured with calipers and other tools. However, traditional artificial intelligence processing is far from being able to meet the needs of production development. Therefore, the emergence of CNC machining provides the possibility for the standardization, precision and efficiency of mechanical product processing. The CNC machining process in the radiator component industry also shines. The

Investment Casting Materials and Manufacturing Process

Mold material The performance of the molding material should not only ensure the convenient production of investment molds with accurate dimensions and high surface finish, good strength and light weight, but also create conditions for the manufacture of mold shells and good castings. Molding materials are generally formulated with waxes, natural resins and plastics (synthetic resins). All mold materials mainly prepared with wax materials are called wax-based mold materials, and their melting point is low, 60~70 ° C; all mold materials mainly prepared with natural resins are called resin-based mold materials, with a slightly higher melting point, about 70 °C. ~120℃. invest-casting.com   Precision Investment Castings China prototype company service include :  High Quality Investment Casting Parts Custom , Lost Wax Investment Casting Sand Casting , Lost Foam Casting , Gravity Casting , Die Casting , Graphite Casting , Casting Moldsmanufacturers . Manufacture of Folding Investments In t

How Do Cnc Swiss Machines Work

How Do Cnc Swiss Machines Work Save 0 What Is Swiss Machine –The full name of the walking CNC lathe, it can also be called the spindle box mobile CNC automatic lathe, the economical turning and milling compound machine tool or the slitting lathe. It belongs to precision machining equipment, which can complete compound  machining such as turning, milling, drilling, boring, tapping, and engraving at one time. It is mainly used for batch  machining of precision hardware and special-shaped shafts. This machine tool first originated in Germany and Switzerland. In the early stage, it was mainly used for precision machining of military equipment. With the continuous development and expansion of industrialization, due to the urgent needs of the market, it was gradually applied to the  machining of civilian products; the development of similar machine tools in Japan and South Korea Earlier than China, it was mainly used in the military industry in the early days. After the war, it was gradually

Improper installation position of the breathing tube of the crankcase of the ND2 locomotive diesel engine

 

Tests on locomotives with crankcase explosions and further expansion to all ND2 locomotives in the entire section show that there is a higher pressure in the crankcase when the diesel engine is working normally. For example, when the ND2157# locomotive went online for testing, the oil and gas pressure in the crankcase was as high as 1.47MPa. When the ND2 locomotive diesel engine works under high load conditions, the temperature of the oil and gas in the crankcase is generally around 90°C, while the temperature of the exhaust gas in the exhaust box is as high as 500°C or more. Especially when the combustion state of the diesel engine is poor, the exhaust gas temperature is higher, which can reach 600-700°C. Although the high-speed exhaust gas flow in the exhaust box has a certain gas diversion effect on the breathing tube installed in it, because the temperature of the exhaust gas is too different from the temperature of the oil and gas, it is very easy to cause the high-temperature exhaust gas to flow back into the crankcase through the breathing tube. .

ND2 locomotive diesel engine crankcase breathing tube is installed improperly, not only can not effectively exhaust, but will cause the oil and gas pressure in the crankcase to rise due to the backflow of high-temperature exhaust gas. Improvement measures (1) Change the arc-shaped thin steel plate of the explosion-proof valve to flat thin steel plate, so that not only the upper and lower ends, but also the left and right sides of the explosion-proof valve can be closely attached to the surrounding rectangular hole of the intermediate body of the explosion-proof valve to improve its sealing performance . And when the explosion-proof valve is activated, the flat thin steel plate can also return to its original position. (2) Change the installation position of the crankcase breathing tube, change the breathing tube upwards to pass through the locomotive roof directly to the atmosphere, and install a rain cover on the exhaust port. In this way, not only the “backflow” problem is completely solved, but the airflow induction effect generated by the air sweeping over the exhaust port when the locomotive is running can still be used to pump air to the crankcase through the breathing tube to reduce the pressure in the box. The Nanchang Locomotive Depot conducted the above-mentioned reorientation and loading test on the exhaust ports of the crankcase breathing tubes of two ND2 locomotives, and achieved satisfactory results. (3) Install diesel engine crankcase overpressure automatic stop device. The device is composed of electrical and mechanical parts. When the pressure in the tank reaches a certain set value, it can promptly alarm and stop the diesel engine. The electrical part consists of a differential pressure control circuit, an alarm control circuit and a shutdown control circuit. There is a certain amount of conductive fluid in the U-shaped differential pressure gauge. The test tube connected to the test end is connected to the oil and gas separator of the crankcase of the diesel engine, and the vent tube at the vent end is in communication with the atmosphere.

For automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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