Heavy truck traction seat micro-hole cooling grid plate and EPC ceramic sand core method production method

Abstract

The invention discloses a heavy truck traction seat micro-hole cooling grid plate and an EPC ceramic sand core method production method. The heavy truck traction seat micro-hole cooling grid plate comprises a body. Vent holes are formed in the body and distributed in the body in an arrayed manner. The vent holes are obliquely formed, the distances between the adjacent vent holes are 15 mm, and thewidths of the vent holes are 2 mm. The length of the body is 500 mm, and the width of the body is 400 mm. The EPC ceramic sand core method production method of the heavy truck traction seat micro-hole cooling grid plate includes the specific steps that I, firstly, a model of a casting is made through foams; II, a ceramic sand core is fixed to the foam model; III, the foam model is brush-coated with a binder; IV, the foam model is put in an evanescent mode sand box, and forming is carried out through negative pressure air extracting; and V, after molten steel is poured into a riser, the foamsare burnt to be removed. The heavy truck traction seat micro-hole cooling grid plate is produced with an EPC ceramic sand core method, the cooling grid plate for a cement kiln can be cast, the coolinggrid plate has a very clear structure contour, the minimum hole diameter is 2 mm, other small and medium structural parts with complex structures can also be cast, and the cooling grid plate is especially suitable for a heavy truck traction seat.

Description

technical field [0001] The invention relates to a microporous cooling grate plate of a heavy truck traction seat and an EPC ceramic sand core method production method thereof. Background technique [0002] The grate plate plays the role of support, but if the hole diameter on the grate plate is too large, the air flow will be too large, which will cause the support on the grate plate to be heated unevenly. Once the heat is uneven, the overall performance of the casting will not meet the requirements. The heavy-duty truck fifth wheel has extremely high requirements on the overall performance. The heat-resistant steel cooling grate plate for cement kiln has a simple structure, with dense air holes on it, and the hole diameter is too small, and the hole diameter is small due to many holes. In the ordinary sand casting process, the minimum casting hole is greater than 5mm, and it is difficult to ensure 100% clear-cut through holes in the molding process, so the pouring yield is...

AI Technical Summary

Problems solved by technology

In the ordinary sand casting process, the minimum casting hole is greater than 5mm, and it is difficult to ensure 100% clear-cut through holes in the molding process, so the pouring yield is very low in the production process, and the economic benefits are poor. In actual use, Large wind pressure loss, waste of energy

In the traditional EPC process, it is difficult for dry sand to fill the inner hole with a small diameter of 2 mm, resulting in mechanical sand sticking, which is even more difficult to remove

It can be seen from this that the overall size of the heat-resistant steel grate plate for cement kiln is relatively small, which belongs to small castings. However, due to the small and many holes on the grate plate, it is difficult to ensure the outline and size of the small holes in the core formed during ordinary sand casting. , and the core of the small hole is troublesome to make. If the hole is not cast, it is extremely difficult to use machining drilling on the heat-resistant steel casting. The process cost is extremely high and cannot be used for product production.

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