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Matt black wall hung toilet manufacturer process

Release time:2020-03-28    Hits:    【Print

1) Raw materials for ceramic production


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It is divided into porcelain clay and glaze. The raw materials are basically the same, but the ratio of raw materials is different.


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Its main ingredients: Feldspar, quartz, iron oxide, zirconia, aluminum powder, magnesium oxide, pigment.


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K2O SiO2 ZnO ZrO2 AL2O3 MgO




Clay: clay used to produce pottery and porcelain.

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Porcelain: the finished product that is completely vitrified into porcelain during high temperature firing.

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Pottery: the finished product that is not completely vitrified and cannot be made into porcelain in high temperature firing.


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Difference between porcelain and pottery: raw material formula, product water absorption, firing temperature.

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Slurry: the raw material used for forming grouting.


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Glaze: the raw material used for semi-finished glaze spraying.

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Production process: ball milling, screening, iron removal, pool storage.


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Ball milling and sieving must reach 325 national standards.


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2) mold




Gypsum mould used for forming grouting.


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Material: gypsum powder


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Features: fast water absorption, short setting time, convenient repair and low price.


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Grouting times: 80 times - 120 times.


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Production process: 3D drawing design, original mold artificial sculpture, master mold made of resin.


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After forming the master mold, the sub mold is produced through the master mold for forming grouting.



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3) Injection molding


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The slurry is used to form the semi-finished body in the gypsum mold.




At least two modular models are combined for each molding product.




Molding method: single side suction, double side suction.




Production process: grouting, grouting, demoulding, splicing and drilling, trimming.






4) spray glaze

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The glaze is evenly sprayed on the semi-finished product body.




Spraying method: manual spraying and manual spraying.




5) firing


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The semi-finished product sprayed into glaze is the product formed after being heated at high temperature in the kiln.




Firing shrinkage: no more than 1.15




Firing time: 13-15 hours.




Firing temperature: 1210 ℃ -- 1290 ℃




Firing process: pre tropical zone, firing zone, cooling zone.




Kiln type: shuttle kiln, tunnel kiln, roller kiln.






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6) test




Size: fineness, specific gravity (moisture content), shrinkage, strength, bending resistance, flow thixotropy.




Glaze: flow, thixotropy, fineness, specific gravity, color difference, high temperature flow, drying time, adaptability of green glaze (in order to control thermal stability).

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Color difference: compared with Kohler standard color plate in the United States, imported color difference meter is used for tile production and firing.




Color: visual inspection.

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