Brake Drums
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Hebei Dingjian Machinery Manufacture Co. Ltd,
Hebei Dingjian Machinery Manufacturing Co., Ltd. is located 12 kilometers east of Beijing Guangzhou line 107 Beijing high speed road, Longyao Auto Parts Industrial Park solid towns south, covers an area of 1600 square meters, more than 200 employees, through nearly thirty years of development, a set of scientific research, production ready, sales as one of professional brake drum, wheel hub production capacity, have a ton of intermediate frequency electric furnace two units, strong technical force, the domestic first-class casting technology, advanced physical and chemical testing, advanced processing equipment, product inspection equipment is perfect, scientific management, sales and service pattern, the annual production of 5000 tons of brake drum. Selling the world more than 20 countries, trusted by our customers.
There are series of domestic products in the product models: Dongfeng brake drums, brake drum, the liberation of heavy truck brake drum, brake drum, Liuzhou North Pennines brake drum, hand brake drums, brake drum, brake drum Kai Fang Sheng, auto brake drum, brake drums, brake drum Hualing Yutong heavy brake drum, brake drum, heavy division gravity, brake drum, brake drum type semitrailer brake drum, wheel hub, export product series: BENZ brake drum, brake drums, brake drum, MAN BPW, SCANIA DAF brake drum, brake drum, brake drums, brake drum, VOLVO IVECO, MAZ SAF brake drum, brake drums, brake drums, brake drum, ROR, HINO NISSAN brake drum, brake drum etc. ISZ OEM type brake drum, wheel hub.
Our business policy is: adhere to the quality of Societe Generale, dedication quality products; auto service industry, to ensure customer satisfaction.
Enterprise purpose: your demand is our work, your development is our pursuit, we would like to join hands together for a better tomorrow!
Hebei Dingjian Machinery Manufacturing Co., Ltd. precision coated sand casting production line put into operation
The morning of August 8th, with 300 pieces of the first production of brake drum from the coated sand line slowly slide, Hebei Dingjian Machinery Manufacturing Co., Ltd. the total investment 670000 yuan, the coated sand built with the domestic advanced level of casting production line, after 15 days of installation and commissioning of formal put into production.
Hebei Dingjian Machinery Manufacturing Co., Ltd. is a professional in the brake drum, wheel braking system supporting manufacturers, with an annual output of various kinds of casting 5000 tons, leading products, brake drum, wheel hub series of best-selling products at home and abroad. In July this year, the company purchased the high precision coated sand casting production line. It is understood, for coated sand process per ton of pig iron brake drum can reduce the consumption of 8 to 9 kg, the rate of finished products can be increased from the original 95% to more than 98%, the production line with annual output of 5000 tons of brake drum, the annual cost savings of 500000 yuan for the enterprise, added 20 jobs.
Clay sand molding as the traditional casting process, due to the pollution of the environment, waste of resources, the quality of the casting defects, the high production costs and other aspects of factors, thus become the first factor of change of casting industry reform, so I chose the cover membrane sand molding process model, instead of clay sand molding.
Other is coated sand in modeling, core making when the die surface is covered with a layer of sand, sand core solid resin film called film coating sand molding. This modeling process:
1, small pollution, working environment is improved obviously. Due to the clay sand adding a larger proportion of the combustion of pulverized coal, mainly used to increase the appearance quality of living and permeability, coal into the sand can not be reused, resulting in a waste of resources. Cause great influence the quality of ash after combustion residues on our work environment. The reducing gas and PM2.5 at the same time when combustion caused serious pollution to the atmosphere. While the modeling methods on coated sand dominated although burning also has a certain impact on the environment, but it's less sand consumption, and waste sand recycling after use of all. The work site clean and free of dust pollution.
2, the sand layer is thin, less dosage, low production cost, low waste, sand can be recycled after use. Because of the modeling method of coating layer is thin, usually depending on the activity of wall thickness design of 5-10 mm sand, and clay sand molding is usually the minimum sand coated maybe 30-50 cm, sand volume is 10-20 times the amount of resin coated sand. Clay sand although also can be two recycling, but addition of pulverized coal, high component of bentonite added raw material basically has consumed up, sand quality has been greatly reduced, affecting the quality of product appearance. While the film coating sand molding sand after high temperature roasting, expansion amount is greatly reduced, in the two use reduces the processing steps, pickling, while adding amount of solid resin, curing agent is also greatly reduced, the production cost is reduced.
3, change the appearance quality of blank, reduce machining allowance, the process yield is high, quality stability. Due to the clay sand molding sand mold hardness is low, collapsibility, pouring live up box, up sand, sand drop, gas hole, shrinkage and other casting defects is serious, not only caused the appearance of the product is poor, while internal casting defects of the products, seriously affect the service life of the products, high reject rate. And the other in the coated sand aggregate after pickling or high temperature roasting, reduces the amount of expansion sand after burning, after curing sand has high strength, small air quantity and many other advantages, created to produce products from both the appearance quality, internal casting defects, to product size precision is far better than clay sand production of products.
4, improve the internal quality of products. Due to fast cooling precoated sand molding casting, greatly improve the graphite morphology, as well as improve the mechanical properties of the products, increase the service life of the products. Resin coated sand molding to produce products, especially the nodular cast iron ball, regardless of level, matrix microstructure, hardness, tensile strength, yield strength is far better than clay sand molding products. In effect increase the inherent quality of the products. Increasing the service life of the products, indirect provided a powerful guarantee to meet customer demand.
5, coated sand molding using automated production line operation, improve the production efficiency, reduce the labor intensity of workers, shorten the labor time. And the clay sand molding the traditional by hand modeling or molding machine molding, great labor intensity of workers, the work efficiency is low, other efficiency of production line of 1 / 3 to 1 / 4.
The coated sand production line in operation, will help Hebei Dingjian Machinery Manufacturing Co., Ltd. brake drum casting quality to a new level.
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