Process method of lost-foam casting double-liquid compound crusher hammer

Abstract

The invention provides a process method of a lost-foam casting double-liquid compound crusher hammer. The process method is characterized in that a hammer handle is arranged downwards and a hammer end is arranged upwards in a module formed by foam patterns, and the module is formed by connecting a riser, an inner gate and a pouring gate; when two metal materials are melted to respective tapping temperature in two furnaces respectively at the same time, two types of molten metal are poured into the same casting mold one after another, after a casting is solidified and cooled, a casting head is cut, and the double-liquid compound hammer is obtained. The process is simple, the cost is reduced by 20%, the production efficiency is increased by 50%, the quality is stable, and the energy-saving effect is remarkable.

Description

Technical field: [0001] The invention relates to a process method of lost foam casting double-liquid compound crusher hammer. Background technique: [0002] The known process of using lost foam casting double liquid compound hammer is as follows: the upper opening of the vertical sprue made of hammer handle is set at the center of the bottom surface of the riser, and after the molten steel made of hammer handle is poured first, it is necessary to put cold iron balls to block the upper opening of the vertical sprue , in order to pour molten iron of hammer end material again. This method has two major disadvantages in actual production: (1) When the chilled iron ball is selected to be large, because the chilled iron ball can only be at the bottom of the riser, the riser molten iron will solidify in advance and affect the feeding, and the casting will be scrapped due to shrinkage cavity (2) as the cold iron ball is selected small, pouring into the hammer end material molten ir...

AI Technical Summary

Problems solved by technology

This method has two major disadvantages in actual production: (1) When the chilled iron ball is selected to be large, because the chilled iron ball can only be at the bottom of the riser, the riser molten iron will solidify in advance and affect the feeding, and the casting will be scrapped due to shrinkage cavity (2) If the cold iron ball is selected to be small, it is easy to move the iron ball due to the impact of the molten iron when it is poured into the molten iron of the hammer end material, and it will not be blocked, resulting in the mixing of the two materials and still making the product scrapped

If you want to choose the right size and size of cold iron balls, it is really very difficult in the actual production operation. In short, this method cannot guarantee the stability of the quality of the double-liquid composite. At present, no one dares to remove the process of using cold iron balls to block the process.

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