Method for preparing bottle head by stamping combined with cutting and forming
A stamping forming and bottle head technology, which is applied in the direction of ceramic molding machines and manufacturing tools, can solve the problems of bottle head blank shape deformation, product qualification rate reduction, and failure to find, etc., to achieve bottle head lines with crisp lines, high accuracy, widely used effect
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Embodiment 1
[0029] The preforms were prepared according to the different methods described below, and the results of the final products resulting from the different methods of making the caps were compared.
[0030] Method 1: Stamping combined with cutting forming: use a steel mold that is convenient for rapid stamping forming to stamp the dry blank of the bottle head (such as figure 1 ). Steel die stamping has certain requirements for forming raw materials. The raw material in the present invention is after the ceramic slurry is spray-dried and granulated, and then punched and formed by a steel mold. The parameters of stamping combined with cutting forming are: first, the bottle head blank is processed into blank slurry, which contains 1 to 6% dextrin, and the fineness of the blank slurry is less than 250 mesh, and the concentration is 40 to 55 ° Be (Baume degree ); after spray drying and granulation, the air inlet temperature of the spray drying granulation tower is 220-360°C, and the...
Embodiment 2
[0043] Prepare ceramic wine bottles according to method 1 of Example 1, compare the influence of the water content of the body blank on the subsequent glazing and firing results during assembly and molding, and screen out the optimum water content of the bottle body.
[0044] When the bottle head dry blank and the bottle blank are assembled and formed, the moisture content of the bottle blank is controlled to be less than 8%, 10-13%, 20-23%, and 25-27%, respectively, and the subsequent dipping effect and final firing are compared. As a result, see Table 2 for the results.
[0045] Table 2 Comparison results of preforms with different moisture content
[0046]
[0047] Summary: According to the above table, it can be seen that when the bottle body is finally assembled and formed, the moisture content in it is controlled between 10-23%. Use the shrinkage process of the subsequent drying bottle body to make the connection more firm and the bottle mouth more precise. If the b...
Embodiment 3
[0049] According to the method 1 of embodiment 1, forming the bottle head and directly punching the bottle head respectively, comparing the production efficiency and the final product result of the two methods. For the bottle head blank that is directly stamped and formed, first make a Huff steel mold according to the shape of the bottle head, and the bottle head blank and the assembly and forming method are the same as method 1 in embodiment 1. Compare the average time required to produce one preform by the two methods, and examine the results after firing. See Table 3 for the results.
[0050] Table 3 Comparison results of two bottle head forming methods
[0051]
[0052] Summary: According to the above table, it can be seen that compared with the direct stamping forming method, the production efficiency of the stamping combined with cutting forming method is increased by more than 80%, and the precision of the bottle mouth is higher.
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