Summary of the invention
The objective of the invention is to overcome the deficiency on the prior art, a kind of reinforced osseous porcelain and production technique thereof are provided, the product of producing had both had sclerotin porcelain good light transmittance, the folding strength that has the High-Temperature Strengthening porcelain again, realize once-firing, help energy efficient, reduce production costs, expand export and earn foreign exchange.
The present invention is achieved through the following technical solutions:
A kind of reinforced osseous porcelain comprises following component (% by weight percentage): mud 45-50, Hunan feldspar 13-15, Guizhou clay 5-8, alpha-aluminium oxide powder 20-25, synthetic bone meal 8-12 are washed in Longyan.
Described Longyan is washed mud drum and is drawn together following component (% by weight percentage): SiO
256.00-64.00, Al
2O
325.00-30.00, Fe
2O
30.30-0.50, TiO
20.03-0.05, CaO 0.06-0.15, MgO 0.25-0.33, K
2O 4.20-5.40, Na
2O 0.30-0.36, IL 6.00-8.50.
Described Guizhou clay comprises following component (% by weight percentage): SiO
240.00-50.00, Al
2O
335.00-42.00, Fe
2O
30.14-0.20, TiO
20.05-0.07, CaO 0.36-0.56, MgO 0.01-0.03, K
2O 0.01-0.03, Na
2O 0.01-0.03, IL 12.00-16.00.
Described alpha-aluminium oxide powder particle diameter is 3-4 μ m.
The production technique of described reinforced osseous porcelain may further comprise the steps:
Blank, base substrate are made: mud, Hunan feldspar, Guizhou clay, alpha-aluminium oxide powder and synthetic bone meal are washed in Longyan drop into ball mill by said ratio, add water for ball milling, sieve, deironing, pressure mud, pugging, old, refining, blank forming, drying, repaired biscuit;
Glaze preparation: with glaze go into ball milling after with feed proportioning, sieve, deironing, old standby, make glaze;
The base substrate porcelainization: glazing, kiln calcining, check are promptly.
Described blank adds water for ball milling by material: ball: the weight ratio of water=1: 3: 0.7 adds water; Described sieving is 160 orders; Described deironing gaussian intensity is 1.1-2.0 ten thousand gaussian intensities; It is 25-27% that described pressure mud makes mud cake moisture content; The described old time is 15-25 days; Described refining vacuum tightness is 0.06-0.075MPa; Described kiln calcining temperature is 1260-1280 ℃, and calcination time 8-9 hour, calcination atmosphere was an oxidizing atmosphere.
Reinforced osseous porcelain internal performance index of the present invention: (1) folding strength reaches more than the 100MPa; (2) thermostability: through 200 ℃ to 20 ℃ heat exchanges once, do not burst.
Advantage of the present invention and beneficial effect are:
1, owing in blank, introduces corundum material (alpha-aluminium oxide powder), make it in high-temperature calcination, to strengthen point of suppon, overcoming the conventional bone porcelain reduces at high temperature load situation lower support point, easily causing softening transform and must adopt twice firing (is the high temperature biscuiting, low temperature glaze firing) shortcoming, realized once-firing, energy-saving effect is remarkable.The main framing effect is played in being added in of alpha-aluminium oxide powder in the base substrate, thereby generates more mullite crystal in high-temperature liquid-phase, thereby improves the folding strength of product.
2, adopt synthetic bone meal (major ingredient is a tricalcium phosphate) as the fusing assistant of blank, can make the transparence of product obviously be better than the reinforcement porcelain of other types.
Embodiment
Embodiment 1:
A kind of reinforced osseous porcelain is following component (weight percent %): mud 47.0, Hunan feldspar 14.0, Guizhou clay 6.5, alpha-aluminium oxide powder 22.5, synthetic bone meal 10.0 are washed in Longyan.
It is following component (% by weight percentage): SiO that mud is washed in described Longyan
260.00, Al
2O
327.50, Fe
2O
30.40, TiO
20.04, CaO 0.11, MgO 0.29, K
2O 4.80, Na
2O 0.33, IL 7.00.
Described Guizhou clay is following component (% by weight percentage): SiO
245.79, Al
2O
338.79, Fe
2O
30.17, TiO
20.06, CaO 0.46, MgO 0.02, K
2O 0.02, Na
2O 0.02, IL 14.00.
Described alpha-aluminium oxide powder particle diameter is 3 μ m.
The production technique of reinforced osseous porcelain of the present invention is following steps:
Blank, base substrate are made: mud, Hunan feldspar, Guizhou clay, alpha-aluminium oxide powder and synthetic bone meal are washed in Longyan drop into ball mill by proportioning, add water for ball milling, sieve, deironing, pressure mud, pugging, old, refining, blank forming, drying, repaired biscuit;
Glaze preparation: with glaze go into ball milling after with feed proportioning, sieve, deironing, old standby, make glaze;
The base substrate porcelainization: glazing, kiln calcining, check are promptly.
Described blank adds water for ball milling by material: ball: the weight ratio of water=1: 3: 0.7 adds water; Described sieving is 160 orders; Described deironing gaussian intensity is 1.8 ten thousand gaussian intensities; It is 26% that described pressure mud makes mud cake moisture content; The described old time is 20 days; Described refining vacuum tightness is 0.07MPa; Described kiln calcining temperature is 1270 ℃, calcination time 8.5 hours, and calcination atmosphere is an oxidizing atmosphere.
Reinforced osseous porcelain internal performance index of the present invention: (1) folding strength reaches 130MPa; (2) thermostability: through 200 ℃ to 20 ℃ heat exchanges once, do not burst.
Embodiment 2:
A kind of reinforced osseous porcelain is following component (weight percent %): mud 45, Hunan feldspar 15, Guizhou clay 8, alpha-aluminium oxide powder 24, synthetic bone meal 8 are washed in Longyan.
It is following component (% by weight percentage): SiO that mud is washed in described Longyan
256.00, Al
2O
328.00, Fe
2O
30.30, TiO
20.03, CaO 0.15, MgO 0.33, K
2O 5.40, Na
2O 0.36, IL 8.00.
Described Guizhou clay is following component (% by weight percentage): SiO
250.00, Al
2O
335.00, Fe
2O
30.14, TiO
20.05, CaO 0.40, MgO 0.01, K
2O 0.03, Na
2O 0.03, IL 14.50.
Described alpha-aluminium oxide powder particle diameter is 4 μ m.
The production technique of reinforced osseous porcelain of the present invention is following steps:
Blank, base substrate are made: mud, Hunan feldspar, Guizhou clay, alpha-aluminium oxide powder and synthetic bone meal are washed in Longyan drop into ball mill by said ratio, add water for ball milling, sieve, deironing, pressure mud, pugging, old, refining, blank forming, drying, repaired biscuit;
Glaze preparation: with glaze go into ball milling after with feed proportioning, sieve, deironing, old standby, make glaze;
The base substrate porcelainization: glazing, kiln calcining, check are promptly.
Described blank adds water for ball milling by material: ball: the weight ratio of water=1: 3: 0.7 adds water; Described sieving is 160 orders; Described deironing gaussian intensity is 1.6 ten thousand gaussian intensities; It is 27% that described pressure mud makes mud cake moisture content; The described old time is 22 days; Described refining vacuum tightness is 0.075MPa; Described kiln calcining temperature is 1280 ℃, calcination time 8 hours, and calcination atmosphere is an oxidizing atmosphere.
Reinforced osseous porcelain internal performance index of the present invention: (1) folding strength reaches 140MPa; (2) thermostability: through 200 ℃ to 20 ℃ heat exchanges once, do not burst.