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Brief Description Of Sand Casting Technical Requirements
Jul 24, 2017

Brief description of Sand Casting technical requirements
Sand is not allowed on the surface of the sand, cracks, cracks and penetration defects and serious defects (such as undercurrent, mechanical damage, etc.).
Sand Casting should be clean, no burrs, burrs, non-processing that the riser should be cleaned and Sand Casting surface flush. Sand cast non-machined surface cast characters and signs should be clearly visible, location and font should meet the pattern requirements of Sand Casting non-processing surface roughness, sand cast sand R, not more than 50μm. Sand Casting should be removed riser, sprint and so on. Non-machined surface of the riser residue to be flattened, polished, to meet the surface quality requirements. Sand cast sand, core sand and core should be cleaned. Sand has a tilted part, the size of the tolerance zone should be symmetrical along the inclined surface configuration. Sand cast on the sand, core sand, core, more meat, sticky sand, etc. should be shovel smooth, clean up. On the wrong type, convex cast cast, etc. should be amended to achieve a smooth transition, a guarantee the appearance of quality. Sand Casting non-processed surface wrinkles, depth less than 2mm, spacing should be greater than 100mm. Machine products Sand Casting non-processed surface are required to deal with shot peening or drum treatment, to achieve cleanliness Sa2 1/2 level requirements. Sand Casting must be water toughness treatment. Sand Casting surface should be flat, gates, burrs, sticky sand, etc. should be removed clean. Sand Casting does not allow the existence of detrimental to the use of cold separation, cracks, holes and other Sand Casting defects.
In recent years, with the domestic market for stainless steel precision Sand Casting industrial products growing demand, China's related enterprises have begun to get rid of the constraints of foreign products, began to independent development of the transformation of the road to provide products in the market competitiveness. At present, independent research and development has become the domestic Sand Casting business development of the primary goal. International Mold Association Secretary-General Luo Baihui said that only from the technical completely out of dependence can be fundamentally independent. In order to get rid of this long-term dependence on the situation, the domestic sector Sand Casting enterprises began to obtain market through independent development. Recently, Wujin District, Changzhou City, Cheyen Town, built a total of industrial park construction grid into a mechanical plant through the independent development of processing mold, out of a stainless steel precision Sand Casting transformation of the road.
It is reported that the past two years, although other enterprises in the financial crisis under the influence of export-oriented Sand Casting business ups and downs. But a total of Gege Machinery Plant not only did not for this "anxiety", but that this is a good time to adjust the product structure. In order to meet customer needs in all directions, it began to independently develop the mold of the road. Increased market development efforts, and in line with the international market to achieve intensive development. Will be to a large extent to promote the domestic stainless steel precision Sand Casting industry continues to develop.
Precision Sand Casting is the leader in the world Sand Casting industry, as the Sand Casting industry in the field of high-tech representatives, precision Sand Casting must play its exemplary role and take the lead role, but the precision Sand Casting to play these two roles is the premise of strong Its own, so China's precision Sand Casting should be given priority to the development of development needs of established goals and development goals, precision Sand Casting industry development goals are the following aspects:
First, the completion of the growth mode by the labor, resource-intensive to the technology capital-intensive changes from extensive pollution to green intensive type of change, the product quality, variety, the number of the world's advanced level, the proportion of high-quality materials Increase, the entire precision Sand Casting plant production efficiency, economic efficiency doubled; environmental pollution has been effectively managed, initially built with the environment coherent China Sand Casting material industry system.
Second, the formation of a number of reasonable structure, the overall level of high combination of research and development and education and training base, can continue to transport professional personnel, and constantly develop high-quality, high-grade Sand Casting new varieties of materials to meet the increasingly Growth needs, while gradually increasing the intensity of technology exports.
Third, to complete the industrial structure adjustment, out of a number of low technological level, poor product quality, serious pollution, poor economic efficiency of small precision Sand Casting plant, the formation of a relatively concentrated "small giant" and "Star Enterprise" to achieve " Professional, large-scale "production. In particular, to the emergence of one or two world-renowned enterprises to compete with the backbone of enterprises, their high level of technology, sophisticated technology, well-funded, advanced management level, can continue to provide high-end market, high-quality Sand Casting materials, High share.