Quartered core device and its application method
A technology of cores and parting surfaces, applied in the direction of cores, molds, mold components, etc., can solve problems such as core fork deformation, complex core removal mechanism, and influence on the surface quality of casting inner cavity and core life , to achieve the effects of increasing surface quality and casting precision, avoiding deformation, and simplifying the operating mechanism
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[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0054] The embodiment of the present invention is a four-part core system used for casting aluminum pistons with a specification of Φ70-135mm. Due to the adoption of a double casting position design, in addition to the superior performance of the four-part core itself, beams and curved beams are the main components. The operating mechanism of the components has also been optimized for overall performance.
[0055] As shown in Figure 1-Figure 4, the quarter core is composed of a pair of side cores and a pair of center cores. They are side core A6, side core B7, center core A8, and center core B9. Side core A6 and side core B7 are formed by cutting the core axially with two parallel chords; center core A8 and center core B9 It is formed by cutting the core with the center core cutting line. Two points with the shortest distance between the two strings an...
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