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16MB430 centrifugal casting cylinder
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oo0s7-0l diesel engine as an important part of the cylinder with high technical requirements, we must have high strength, high hardness and good microstructure, but also less casting defects. Cylinder used in the past such large-scale sand casting,ed hardy, its yield is very low. I plant centrifugal casting process to produce 16MB430 cylinder liner,ed hardy nederland, and achieved satisfactory results. A centrifugal casting equipment used to design and manufacture roller centrifugal casting machine, the roller in the axial and radial distance can be adjusted. Motor power of 55kW. 2 cylinder is a cylindrical mold castings,ed hardy schweiz, made of MTCulCrMo a 250. 16MB430 maximum cylinder diameter 580mm,ed hardy shop, diameter 430mm. Length 1011mm. Bulk casting thick, thin head. Figure 1 16MB430 iron cylinder mold rough and schematic. Development process to determine the cylinder diameter when allowance for the unilateral 12 ~ 15mm. Key parts, such as 580mm, 10mm,} 489.5mm at the allowance of not less than 10mm, other parts of the allowance is not provided. l234 store J16MB43O iron cylinder mold with rough hands rough country 1 2 3 floor. Cylinder 4. Iron mold according ZB005-89 requirements. Each cylinder must be required to take the body cut ring for chemical composition analysis, metallographic examination, hardness and tensile strength determination. Therefore,mulberry kbenhavn, the length must be added the rough-cut cylinder ring length. Centrifugal Casting cylinder mold made of HT250, mold wall thickness must be greater than or equal to the thickness of the rough cylinder 3 centrifugal casting process in accordance with ZB005-89 copper-molybdenum-chromium cast iron MTCulCrMo-250 chemical composition requirements (see Table 1) to determine the blast furnace charge ratio (see Table 2). Table 1MTCulCrMo a 250 chemicals. / Pig iron using iron Benxi No. Z15. Frequency electric furnace smelting using 1.5t. After the adjustment of clear molten iron melt chemical composition to achieve the requirements of Table 1,oakley brasil, the temperature reached 1400lc released. Inoculation must be carried out before pouring, adding ferrosilicon (FeSi 75) about the quality of hot metal 05 ~ O, 6. Before pouring, the mold must be coated with good paint, paint ratio shown in Table 3, the coating thickness of about 3 ~ 4mm, and the thickness uniformity,mulberry outlet, defect-free. Cast iron mold when the temperature is higher than 100 ?. Table 3 After pouring paint matching iron mold with water cooling,ed hardy mexico, can increase the life of cylinder mold. Rough cylinder when the temperature dropped to 600 ~ 650C before the shutdown. 16MB430 cylinder rough quality 940kg,mulberry norge, cylinder mold quality 1800kg. Cylinder mold speed 650r/rain. 4 casting quality so far, casting 16MB430 cylinder 52, the tensile strength above 300MPa, much higher than ZB005-89 requirements (greater than 250MPa) requirements. The microstructure of retirement only two failed. This shows that the tensile strength, hardness can meet the requirements. 16MB430 finished cylinder casting was 96,2 5 cost-effectiveness analysis using centrifugal casting process to produce 16MB430 liner can greatly improve casting yield and reduce man-hours consumed. Reduce labor intensity. Improve labor productivity, reduce storm water riser and the casting process to improve production rate. Significantly improve the working environment. Its cost performance is much higher than the import liner,mac cosmetics wholesale, the state saves a lot of foreign exchange. (Editor: Liu Wei) Chen Jiguo male engineers. Born in 1966, Zhanjiang coastal shipyards, Zhanjiang coastal three-way 56 ~ - (524005) Received: l999 an o9-2857
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