A Nine-step Firing Process for Ru Porcelain with Threaded Structure
A screw thread and footwork technology, which is applied in the field of nine-step firing Ru porcelain with thread structure, can solve the problems of large gap, low yield, low efficiency, etc.
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Embodiment 1
[0035] A nine-step process for firing Ru porcelain with a threaded structure. First, the raw material is used to shape the blank to produce a threaded structure, and then it is fired in a kiln to obtain a plain body; The finished product is obtained; the content of aluminum oxide in the raw material is 22%, the moisture content of the raw material is 9.5%, the glaze concentration of the plain tire is 60 Baume degrees, and the kiln glaze firing is carried out according to the following steps:
[0036] In the first step, within 3 hours, the temperature is raised from room temperature to 90°C at a uniform speed in an oxidizing atmosphere;
[0037] In the second step, within 18 hours, the temperature is raised from 90°C to 1000°C at a uniform speed in an oxidizing atmosphere;
[0038]In the third step, under reducing atmosphere, first raise the temperature from 1000°C to 1050°C at a constant rate of 3min / °C, and keep it at a constant temperature for 1h; Slowly heat up from 1240°C...
Embodiment 2
[0046] A nine-step process for firing Ru porcelain with a threaded structure. First, the raw material is used to shape the blank to produce a threaded structure, and then it is fired in a kiln to obtain a plain body; The finished product is obtained; the content of aluminum oxide in the raw material is 30%, the moisture content of the raw material is 10.5%, the glaze concentration of the plain tire is 64 degrees Baume, and the kiln glaze firing is carried out according to the following steps:
[0047] In the first step, within 3 hours, the temperature is raised from room temperature to 90°C at a uniform speed in an oxidizing atmosphere;
[0048] In the second step, within 20 hours, the temperature is raised from 90°C to 1000°C at a uniform speed in an oxidizing atmosphere;
[0049] In the third step, under reducing atmosphere, first raise the temperature from 1000°C to 1050°C at a constant rate of 3min / °C, and keep it at a constant temperature for 1h; Slowly heat up from 1240...
Embodiment 3
[0057] A nine-step process for firing Ru porcelain with a threaded structure. First, the raw material is used to shape the blank to produce a threaded structure, and then it is fired in a kiln to obtain a plain body; The finished product is obtained; the content of aluminum oxide in the raw material is 26%, the moisture content of the raw material is 10%, the glaze concentration of the plain tire is 62 degrees Baume, and the kiln glaze firing is carried out according to the following steps:
[0058] In the first step, within 3 hours, the temperature is raised from room temperature to 90°C at a uniform speed in an oxidizing atmosphere;
[0059] In the second step, within 19 hours, the temperature is raised from 90°C to 1000°C at a uniform speed in an oxidizing atmosphere;
[0060] In the third step, under reducing atmosphere, first raise the temperature from 1000°C to 1050°C at a constant rate of 3min / °C, and keep it at a constant temperature for 1h; Slowly heat up from 1240°C...
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