Ceramic gland mold and manufacturing method thereof

A technology of capping mold and manufacturing method, which is applied in the directions of manufacturing tools, capping, forming tools, etc., can solve the problems of reduced surface smoothness, peeling off of protective film, abrasion, etc., and achieves large thermal expansion coefficient, good implementation effect, and excellent wear resistance. Effects of Features

Inactive Publication Date: 2011-11-09
陈中红
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Problems solved by technology

[0002] Traditional capping molds are made of cemented carbide, but because the hardness of the material generally does not exceed HRC70, this determines that the parts will be worn out after a short period of use, resulting in a greatly reduced surface finish, which eventually makes the capping The protectiv

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  • Ceramic gland mold and manufacturing method thereof
  • Ceramic gland mold and manufacturing method thereof
  • Ceramic gland mold and manufacturing method thereof

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[0026] like figure 1 , figure 2 The ceramic capping die shown includes a capping die body, and the capping die body is provided with an inner opening. The difference is that the capping die body uses ceramics as the main material. Rare earth oxides are added as stabilizers to form solid solutions and composites; the ceramics in the inner arcs form tetragonal and cubic phases of the twin crystal structure.

[0027] Further, in order to improve the service life, a protective cover may be provided outside the capping mold body. At the same time, in order to form the cap perfectly, the arc of the inner mouth and the body of the capping die smoothly transition.

[0028] Meanwhile, in order to meet the needs of processing, the ceramics include alumina, silica, zirconia, and silicon nitride. Stabilizers include CeO 2 , Y 2 O 3 , ZrO 2 and Al 2 O 3 . In addition, the smoothness of the arc of the inner opening is less than or equal to 0.2 μm. Of course, considering the snap...

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Abstract

The invention relates to a ceramic gland mold and a manufacturing method thereof. The ceramic gland mold comprises a gland mold body, wherein an inner mouth arc is arranged in the gland mold body. The ceramic gland mold is characterized in that: ceramics are used as main materials of the gland mold body; a rare earth oxide serving as a stabilizing agent is added into the ceramics to form solid solution and a complex body; and square and cubic phase ceramics with twin-crystal structures are formed by the ceramics in the inner mouth arc. By the steps of powder preparation, gland mold formation and sintering finish machining, the square and cubic phase ceramics with the double-crystal structures can be quickly and stably formed. Therefore, the ceramic gland mold has high-temperature resistance, chemical corrosion resistance and oxidation resistance. Simultaneously, the inner mouth arc has a reasonable design and high smooth finish and meets the requirement that a coating is not damaged during the pressing of a bottle cap.

Description

technical field [0001] The invention relates to a cover mold and a manufacturing method thereof, in particular to a ceramic pressing cover mold and a manufacturing method thereof. Background technique [0002] Traditional capping molds are made of cemented carbide, but because the hardness of the material generally does not exceed HRC70, this determines that the parts will be worn out after a short period of use, resulting in a greatly reduced surface finish, which eventually makes the capping The protective film on the surface of the bottle cap peels off. After losing the protection of the surface protective film, the bottle cap made of tinplate will quickly rust in a humid environment, resulting in damage to the appearance of the finished product and even affecting the market competitiveness of the product. In order to reduce the rust of bottle caps during the capping process, it is a subject that all beer and beverage manufacturers have always wanted to overcome. Conte...

Claims

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Application Information

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IPC IPC(8): B21D37/10B21D51/48C04B35/10C04B35/14C04B35/48C04B35/584C04B35/622
Inventor 陈中红顾建新毛礼峰
Owner 陈中红
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