Casting method of a guide vane casting
A technology for guide vanes and castings, applied in the casting field of castings, can solve problems such as slag inclusion, and achieve the effects of reducing riser settings, improving process yield, and reducing production costs
Active Publication Date: 2015-07-29
KOCEL STEEL
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the defects of the prior art, and provide a guide vane casting with a unique method, using the upper and lower halves of the product to combine casting, which can solve the problems of slag inclusion and deformation, improve production efficiency and reduce production cost casting method
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[0021] like figure 1 , 2 As shown, a casting method of a guide vane casting, the method includes the following steps:
[0022] a. Align and cast the upper half casting 8 and the lower half casting 9 along the joint surface;
[0023] b. The lower flange 5 faces upwards, and according to the modulus calculation, an open riser 4 is set on it;
[0024] c. The lower part of the upper flange 11 is thick and large, and the riser neck 10 is set according to the modulus calculation. The riser neck is provided with an open riser. The upper edge of the open riser and the upper edge of the open riser 4 arranged on the lower flange the same level;
[0025] d. Along the circumferential direction, set chill iron 6 between every two risers, and the thickness of the chill iron is less than 2 / 3 of the wall thickness of the casting;
[0026] e. Put the diaphragm sand core 7 into the mold cavity at the joint surface of the upper and lower half castings to ensure that the castings are cut here...
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The invention relates to a casting method for a casting piece and particularly relates to a casting method for a guide vane casting piece. The casting method is characterized by comprising the following steps: aligning an upper half casting piece and a lower half casting piece along a combined face and casting integrally; putting a lower flange upwards and arranging an open riser on the upper face according to modulus calculation; setting a riser neck on a thick part of the lower part of an upper flange according to the modulus calculation; arranging an open riser on the upper face of the riser neck, wherein the upper edge of the open riser and the upper edge of the open riser arranged on the upper face of the lower flange are on the same horizontal plane; arranging cold iron between every two risers along the peripheral direction; putting a cavity on the combined face of the upper half casting piece and the lower half casting piece into a separation plate sand core; closing the box and pouring. The method is unique; the problems of slag clamping, deformation and the like are solved by combining and casting the upper half product and the lower half product; the production efficiency is improved and the production cost is reduced.
Description
technical field [0001] The invention relates to a casting method of a casting, in particular to a casting method of a guide vane casting. Background technique [0002] The complete set of guide vanes is divided into upper and lower halves. The castings of the guide vanes are similar to circular rings. The wall thickness of the upper flange is thicker than that of the lower flange, which is prone to deformation during the solidification process. In the traditional casting process, the guide vane is usually formed by single-half casting, with upper and lower risers, and anti-deformation tie bars are set in the middle of the joint surface. Using this casting process, there are certain defects: 1) Using single-half casting, only one One piece is produced, and the production efficiency is low; 2) The upper and lower risers are set up, the process yield is low, and the production cost is high; 3) The anti-deformation tie bar is set in the middle of the joint surface, and the anti-...
Claims
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IPC IPC(8): B22C9/22
Inventor 马涛杨建郭小强周催佰李莹唐钟雪张宏凯罗永建
Owner KOCEL STEEL