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Method for in situ synthesis of tungsten carbide based hard alloy coating on casting surface
Method for in situ synthesis of tungsten carbide based hard alloy coating on casting surface
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机译:在铸件表面原位合成碳化钨基硬质合金涂层的方法
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#$%^&*AU2012201390B220130815.pdf#####Specification Abstract A method for in situ synthesis of tungsten carbide based hard alloy coating on casting surface, belongs to metal based composite material preparation technical field. Adopting vacuum lost foam casting technique, W powder, graphite powder, metal powder are mixed, and agglomerant is added to produce powder coating paste, then the powder coating paste is coated on the surface of EPS foam plastic model or filled in the holes and grooves of the model. In the pouring process, high temperature molten steel induces self-propagating synthesis reaction, that is 3W+2C--*WC+W 2C, to form tungsten carbide based hard alloy phase, and obtain surface or part self-propagating synthesis of tungsten carbide based hard alloy coated castings. The advantages of the present invention are, good surface quality of the castings, solid combination of coating and castings, high abrasive resistance, not falling off of antifriction alloy layer, and simple technique, suitable for industrial production. 9
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机译:#$%^&* AU2012201390B220130815.pdf #####规格摘要原位合成碳化钨基硬质合金涂层的方法铸件表面,属于金属基复合材料制备技术领域。采用真空消失模铸造技术,W粉,石墨粉,金属混合粉末,并添加凝聚剂以生产粉末涂料浆,然后将粉末涂料糊涂在EPS泡沫塑料模型的表面上或填充在模型的孔和凹槽中。在浇注过程中,高温钢水引起自蔓延的合成反应,即3W + 2C-* WC + W 2C,形成碳化钨基硬质合金相,并获得表面或零件自蔓延合成碳化钨基硬质合金涂层铸件。的本发明的优点是铸件的表面质量好,固体涂层和铸件的结合,高耐磨性,不脱落减摩合金层,工艺简单,适合工业化生产。9
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