Black sand device and preparation method thereof
A technology of black sandware and raw materials, which is applied in the field of black sandware and its preparation, can solve the problems of cooking utensils bursting, difficult production and processing, etc., and achieve the effect of firm texture and soft color
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Embodiment 1
[0020] A kind of black sand device described in the present embodiment is made from the following raw materials in parts by weight: 60 parts of Baishan mud, 40 parts of independent carbon secondary coal, and the mass percentage of iron in the described Baishan mud is 3 -5%, the raw material is obtained after the steps of mining, weathering, drying, crushing and drying.
[0021] Its preparation method comprises the following steps:
[0022] (1) Mud making: Add 5 times of water to the raw material, ball mill, sieve, and stale in a dark room for 18 days, and then enter the forming step after vacuum refining mud. Mesh sieve, control the plasticity index of mud ≥ 3;
[0023] (2) Forming: The mud is formed by hand, machine or grouting;
[0024] (3) Drying the billet: the formed black sand device blank tire is placed in a cool and ventilated place at 15°C to dry, avoiding direct sunlight;
[0025] (4) Decoration: Carry out appropriate engraving decoration on the dried black sandwa...
Embodiment 2
[0036] A kind of black sand device described in the present embodiment is made of the following raw materials in parts by weight: 50 parts of Baishan mud, 50 parts of independent carbon secondary coal, and the mass percentage of iron in the described Baishan mud is 3 -5%, the raw material is obtained after the steps of mining, weathering, drying, crushing and drying.
[0037] Its preparation method comprises the following steps:
[0038] (1) Mud making: add 5 times of water to the raw material, ball mill, sieve, and stale in a dark room for 20 days, and then enter the forming step after vacuum refining mud. When sieving, control more than 99% of the mud to pass 200 Mesh sieve, control the plasticity index of mud ≥ 3;
[0039] (2) Forming: The mud is formed by hand, machine or grouting;
[0040] (3) Drying the billet: the formed black sand device blank tire is placed in a cool and ventilated place at 10°C to dry, avoiding direct sunlight;
[0041] (4) Decoration: Carry out a...
Embodiment 3
[0048] A kind of black sand device described in the present embodiment is made of the following raw materials in parts by weight: 80 parts of Baishan mud, 65 parts of independent carbon secondary coal, and the mass percentage of iron in the described Baishan mud is 3 -5%, the raw material is obtained after the steps of mining, weathering, drying, crushing and drying.
[0049] Its preparation method comprises the following steps:
[0050] (1) Mud making: Add 4.5 times of water to the raw material, ball mill, sieve, and stale in a dark room for 20 days, and then enter the forming step after vacuum mud refining. When sieving, control more than 99% of the mud to pass 250 Mesh sieve, control the plasticity index of mud ≥ 3;
[0051] (2) Forming: The mud is formed by hand, machine or grouting;
[0052] (3) Drying the billet: the formed black sand device blank tire is placed in a cool and ventilated place at 15°C to dry, avoiding direct sunlight;
[0053] (4) Decoration: Carry out...
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