Double-layer sand mould of vehicle front brake disc and foundry technique
A casting process and front brake technology, applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of low production efficiency and high production cost, and achieve the effects of improved production efficiency, improved material yield and simple operation.
Active Publication Date: 2010-08-11
GAOQIU LIUHE TIANJIN IND
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Problems solved by technology
The traditional brake discs are manufactured by this method, the production efficiency is relatively low, and the production cost is high
Method used
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Embodiment
[0019] Embodiment: a kind of double-layer sand mold (see Fig. 1-4) of front brake disc of automobile, it is characterized in that it is the molding sand mold 1 and 2 that buckles up and down oppositely, the sand core 3a, 3b that buckles up and down oppositely and middle Sand cores 4 sandwiched between each other are formed, and there are pouring holes 1a on the sand mold of the upper mold. The sand cores 3a, 3b that are buckled up and down and sandwiched in the middle are formed by casting. Neck 5a, central assembly hole 5b, upper and lower braking surfaces 5c and 5d, heat dissipation ribs 5e, and brake discs 5 and 6 with heat dissipation holes 5f in the middle of every two heat dissipation ribs 5e, and the sand cores 3a and 3b that are buckled up and down facing each other There is the mold hole opposite to above-mentioned brake disk on the intermediate partition plate sand core 4 sandwiched with the middle.
[0020] A kind of double-deck sand casting process (seeing Fig. 1) ...
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The invention relates to a double-layer sand mold of a vehicle front brake disc and a casting technique thereof; the double-layer sand mold consists of sand molds which are buckled up and down, sand cores which are buckled up and down as well as a middle clapboard sand core clamped in the middle; the sand cores which are buckled up and down and the middle clapboard sand core clamped in the middleare casted to form a brake disc which consists of an assembling neck, a central assembling hole, an upper brake surface, a lower brake surface, radiating ribs and radiating holes between every two radiating ribs; the sand cores which are buckled up and down and the middle clapboard sand core clamped in the middle are provided with mold holes which are reverse to the brake disc; the technique thereof includes: casting an upper sand mold and a lower sand mold; manufacturing a combined sand core; arranging the combined sand core into the sand mold, casting and shaping into two brake discs after closing the mold. The double-layer sand mold of the vehicle front brake disc and the casting technique thereof has the advantages of improving the production efficiency, thus improving the production value by one time; reducing the cost, thus greatly improving the material obtaining rate; being simply operated which only needs to be simply stuck; adding the clapboard during the process of manufacturing the sand cores, thus playing the role of isolation between the two sand cores.
Description
(1) Technical field: [0001] The invention relates to a casting process, in particular to a double-layer sand mold of an automobile front brake disc and the casting process thereof. (two) background technology: [0002] The existing production technology of automobile front brake discs is only one-stage single-layer casting (see Figure 5). Because the brake discs have heat sinks that need to be molded with sand cores, each brake disc needs to use one sand core. After the molding is completed, the sand core is put into the sand mold, and the mold is closed and cast into shape. Traditional brake discs are manufactured by this method, and the production efficiency is relatively low and the production cost is high. (3) Contents of the invention: [0003] The purpose of the present invention is to provide a double-layer sand mold for the front brake disc of an automobile and its casting process. It is based on the production basis of the original one-stage single-layer casting,...
Claims
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IPC IPC(8): B22C9/24
Inventor 大桥真三
Owner GAOQIU LIUHE TIANJIN IND