Dalian qianda trading co. LTD
Associate: manager li
Associate: manager pu
Web site: www.dlqianda.com
tongren street, xigang district, dalian city, liaoning province
Silica sol precision casting process is an excellent technology in casting industry. Metal type gravity casting which is good because silica sol is used in the investment casting of high quality adhesive, it is a kind of colloidal solution with a pale green color or milky white appearance; The performance of silica sol is stable and its storage period is long. The surface quality of silica sol shell is good, its high temperature strength is high, and its thermal shock stability is good (it can resist rapid cold and heat). High temperature resistance to deformation. The operation of wax film is also required in casting process.
When the wax mould is pressed by dalian precision casting wax, the first part must be checked before operation can be carried out. The pressing parameters should not be changed easily during the pressing process. When using the new mould, it is important to know the assembly and disassembly sequence of the mould, and how to take out the wax mould. When the wax mould is stored, attention should be paid to the usage direction to prevent deformation. When necessary, the tool and other measures can be adopted to avoid wax mold deformation.
Automobile precision casting is more commonly used in investment casting, and carbon steel casting is also called dewaxed casting. Repeat the process of dipping refractory coating and sprinkling refractory sand on the melting mould, hardening shell and drying; Then melt the internal melting mould and obtain the cavity. The roasting shell is used to obtain sufficient strength and to burn off the remaining molten mould materials.
Metal materials needed for pouring; Solidified cooling, after the removal of the sand, so as to obtain high precision products. Heat treatment, cold processing and surface treatment according to product requirement. For example, the sand mold casting, Shanghai carbon steel casting a large number of production factories should create conditions to adopt advanced technology modeling, core manufacturing methods.
Lost wax casting, casting method, the drawing method of wax, wax method, such as several titles, the principle is very simple, is that people use the converse thinking, not bronze ware is very complicated, do die double fan is difficult, then use beeswax kind of insect wax, first make a plan and cast bronze the same waxy, due to the wax is very soft, can very fine carve; After the wax sample is processed satisfactorily, the wax sample is covered with a fine layer of mud over and over again outside the wax sample. When the outside air, then copper liquid can be through the sprue pours into the van, with the injection of high temperature molten copper, heal quickly melted wax models in NiFan, into a wisp of smoke disappeared, copper liquid will occupy the space of the wax models. After cooling, the outer fan is removed, and the bronze ware exactly like the wax model is born.