How can adopt import vacuum pumps in metal casting? - - - - - -

casting is a contemporary one of the basic processing technology of mechanical equipment manufacturing industry, so many customers for metal casting is attaches great importance to product quality, recently, the strong professional and technical personnel recommended to import vacuum pumps used in metal casting, can very good practical effect. Metal casting is a metal smelting into certain provisions of the liquid is poured into the mold, after refrigeration condensing, cleanup successively solve the get a booking way, specifications and features of processing technology of casting process. Shape casting blank for nearly, but do not machining manufacturing or small production and processing the purpose of reducing the cost and reduce the time to a certain level.

casting is to use all sorts of metal forming casting get items, namely the smelter good liquid metal, with casting, injection, breathe in, or other casting method into the prepared mold, after cooling after grinding polishing processing way afterwards, have gained by the way, specifications and features.

how can adopt import vacuum pumps in metal casting?

metal castings and powdered metal components impregnation refers to plug leaks caused by porosity. Introducing tableland material such as liquid work according to the vacuum water pump and the pressure into the component wall inside the gap. Then tableland condensed material, covered with permeable mouth, make the compressive sealing components.

there are various casting classification method: according to the commonly used metal tableland material is different, divided into stainless steel castings, aluminum die casting, casting copper pieces, aluminum alloy die casting, casting magnesium, titanium zinc casting, casting parts, etc. And each of these castings can be according to its composition or alloy composition is further divided into different types. Such as aluminum die casting can be divided into steel, nodular cast iron, vermicular cast iron, malleable cast iron parts, aluminum alloy aluminum die casting, etc. ; According to mold forming methods, can put the casting into average sand casting, metal mold casting, die casting, the suction filter casting, continuous casting parts, investment casting, porcelain type casting, electroslag casting pieces, double metal castings, etc. In the largest number in general use sand mold casting, accounts for about 80% of all castings production. And aluminum, magnesium, zinc and other non-ferrous plate metal castings, mostly die casting.

metal casting process generally includes:

1) cast ( Makes for a solid casting liquid metal ware) Prepare ahead of time, mould according to the commonly used tableland materials can be divided into sand mould, metal, porcelain, mud, high purity graphite, etc. , according to the application of frequency can be divided into one-time, tattoos and permanent, the stand or fall of mould are prepared ahead of time is the key to the harm of castings quality factor;

(2) cast metal melting and pouring, casting metal ( Casting aluminum alloy) Key with pig iron, steel and aluminum alloy casting non-ferrous plate;

(3) of the casting solution and detection, casting solution containing eliminate core and the casting surface dirt, remove poured riser, shovel grinding burrs and cover with seam bump and tempering treatment, cosmetic surgery, rust solution and pretreating, etc.

metal casting, chooses import vacuum pumps do not only make the need to dip under vacuum packing standard of chemical gas escape, the clearance and safe passage, conducive to the infiltration of tableland materials impregnated into outer diffusion process, and compare the superheated steam impregnation, a vacuum can be on the surface of impregnated material to produce higher levels of penetration to the content quantity. Fusion described above mentioned basic tableland import vacuum pumps used in metal casting, vacuum impregnation than overheated steam soaking the actual operating time is reduced, protect the material cost reduction and quality can get reasonable improvement.