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What Are The Types Of Clay Crucibles?

QINGDAO YOSION LABTECH CO., LTD. | Updated: Jun 27, 2017

The type of clay crucibles is divided into three categories: the first category of copper crucible, its specifications "No.", the second category for the copper alloy crucible, special round 100, round 100, Three kinds of steel used crucible, there are 100 number.

Clay crucibles size (size), usually expressed in the order number size, No. 1 crucible has a capacity to melt 1000g brass, the weight of 180g. Crucible in the melting of different metals or alloys when the amount of melting, crucible can be the capacity of the specification number, multiplied by the corresponding metal and alloy coefficient.

Clay crucibles production of raw materials, can be summarized as three types. One is the crystalline natural graphite, the second is the plastic fire resistance

Clay, and the third is the calcined hard kaolin skeleton clinker. In recent years, began to use high-temperature synthetic materials, such as: silicon carbide, alumina emery and ferrosilicon and other crucible skeleton clinker. This clinker has a significant effect on improving crucible product quality, enhancing crucible density and mechanical strength.

Clay crucibles is a container for melting glass, high temperature, anti-erosion, other containers can not be replaced. In the prior art, clay crucibles manufacturing is hand-formed, the quality is difficult to control, objectively subject to climate constraints, subjectively affected by human factors, its inherent quality problems such as perforation, disjoint, etc., there is no modern instrument test, genuine rate It is difficult to improve, and hand-made production efficiency is low, poor economic efficiency, for the larger volume of clay crucibles production is particularly evident.

A clay crucibles molding method for pressing a crucible embryo body not only ensures the quality of the product, but also improves the production efficiency. In order to achieve the above object, the present invention adopts a clay crucibles molding method according to the following scheme, which comprises the steps of: 1) placing the mud-loaded mud into the mold cavity of the lower mold; 2) And the pressing is carried out by vacuuming the mud material through a plurality of air holes provided only for the gas and water through the upper mold wall; 3) pressing the crucible embryo body after pressing, The stomata on the wall of the crucible embryo exhaust release; 4) after the demolding of the crucible embryo drying system made crucible finished. Preferably, the stomatal diameter on the upper mold wall is 25 mm.


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