CN105859328A

CN105859328A - Self-glazed ceramic-molded clay body blocking agent and method

Info

Publication number: CN105859328A
Application number: CN201610196805.7A
Authority: CN
Inventors: 谢敬裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2016-08-17
Anticipated expiration: 2036-03-31
Also published as: CN105859328B

Abstract

The invention provides a self-glazed ceramic-molded clay body blocking agent and a method. The self-glazed ceramic-molded clay body blocking agent comprises mud. The dry blank of the mud comprises the following chemical components in weight percentage: 60 to 76% of Al2O3, 21 to 35% of SiO2, 0.6 to 1.2% of K2O, 0.4 to 1% of CaO, 0.1 to 0.3% of Na2O, 0.1 to 0.3% of MgO, 0.04 to 0.07% of Fe2O3, and 1.5 to 5% of ignition weightlessness substance. According to the invention, the precipitation of the autogenous glaze on one part of the surface is prevented. In this way, the problem in the prior art that the bottom of the self-glazed ceramic-molded clay body is bonded to a boron board and other kiln furniture during the sintering process can be effectively solved. Meanwhile, more space is provided for designing the patterns or the layers of the self-glazed ceramics. Therefore, the practical utilization of the self-glazed ceramic production technology is effectively promoted.

Description

Spontaneous glaze pottery molding unpainted clay idol sealer and method

Technical field

The present invention relates to spontaneous glaze ceramic technology, a kind of spontaneous glaze pottery molding unpainted clay idol sealer and method.Described from Raw glaze refer to the glaze layer on porcelain body surface be unpainted clay idol in kiln in sintering process spontaneous in carcass separate out and/or carcass burn till surface effect Answer and formed, say, that eliminate enamel frit makeing, glazing this two big operation and correlation step completely；Described molding unpainted clay idol is The carcass of finger ceramic material plastotype；Described molding unpainted clay idol sealer refers to this sealer can make on unpainted clay idol and is coated with envelope The position closing agent will not separate out from raw glaze in sintering process in kiln, in order to avoid occurring that spontaneous glaze pottery is bonded in kiln furnitures etc. and supports knot On structure.

Background technology

Traditional Production of Ceramics generally uses the twice firing mode including biscuiting and glaze firing, i.e. unpainted clay idol to enter kiln after biscuiting again Kiln discharge, carries out surface glazing (will previously prepared glaze cover on porcelain body surface), the most again by the porcelain body of current kiln discharge Enter kiln and carry out glaze firing.Ceramic production technology generally comprises raw material and selectes, dispensing, pulverizes, sieves, except ferrum, filter pressing, pugging Forming pug, molding, be dried, biscuiting, glazing, glaze firing is i.e. burnt till as ceramic product, and wherein raw material is selected refers mainly to mineral Selecting, what pugging had is divided into a pugging and secondary pugging, arranges old operation, powder between a pugging and secondary pugging Broken employing adds water for ball milling.The equipment that Production of Ceramics relates to generally comprises blender, ball mill, vibration screening machine, magnetic magnetic separator de-ironing, Mud plunger pump and pressure filter, pug mill, former, furnace etc..From last century eight, the nineties, at pottery Porcelain produces and in research practice, unpainted clay idol occurs in sintering process from glazing or certainly release glaze or from analysing glaze or from raw glaze phenomenon just Being paid attention to, the liquid phase from formula, mechanism, interpolation activator to solid-phase construction separates out capillary force etc. and has carried out many Inquire into.The present inventor is devoted to the productivity research and development of spontaneous glaze ceramic product the most always, is realizing spontaneous glaze Production of Ceramics Technology practical during find, during spontaneous glaze pottery once-firing, unpainted clay idol connects with kiln furnitures (such as boron plate etc.) Contact portion position, such as convex edge, bottom etc., also have precipitation glaze, cause bonding phenomenon to occur.Especially, some Ceramic Art Design needs Will occur without on some surface or be formed without glaze layer, this is accomplished by closing some position or some surface, stops its generation spontaneous Glaze.

Summary of the invention

The present invention is directed to defect or deficiency present in prior art, it is provided that a kind of spontaneous glaze pottery molding unpainted clay idol sealer and side Method.The described glaze layer referring to porcelain body surface from raw glaze is that unpainted clay idol is spontaneous in sintering process in kiln to be separated out and/or carcass in carcass Burn till skin effect and formed, say, that eliminate enamel frit makeing, glazing this two big operation and correlation step completely；Described Molding unpainted clay idol refers to the carcass with ceramic material plastotype；Described molding unpainted clay idol sealer refers to that this sealer can make unpainted clay idol On be coated with the position of sealer and in kiln, sintering process will not separate out from raw glaze, in order to avoid occurring that spontaneous glaze pottery is bonded in kiln In the supporting constructions such as tool.Especially, some Ceramic Art Design needs to occur without on some surface or be formed without glaze layer, described molding Unpainted clay idol can close some position or some surface, stops it to be produced from raw glaze.

Technical scheme is as follows:

Spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that include that mud, the dry body of described mud include following chemistry Composition and weight content: Al2O3 is 60～76%, and SiO2 is 21～35%, and K2O is 0.6～1.2%, CaO be 0.4～ 1%, Na2O are 0.1～0.3%, and MgO is 0.1～0.3%, and Fe2O3 is 0.04～0.07%, calcination loss thing be 1.5～ 5%.

Described mud is added water by industrial chemicals Al2O3 and clay and mixes.

Described industrial chemicals Al2O3 is 50～70 weight portions, and described clay is 30～50 weight portions.

The fineness of described mud is between 325 mesh～800 mesh.

The preparation method of spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that comprise the following steps: step one, raw material Levigate, industrial chemicals Al2O3 and clay are all put into ball mill and adds water and be finely ground to slurry, described Al2O3 is 50～70 weight Part, described clay is 30～50 weight portions；Step 2, filter, by described levigate after slurry vibrosieve filter；Step Three, except ferrum, the slurry after sieving is carried out except i.e. deriving from raw glaze pottery molding unpainted clay idol sealer, i.e. mud after ferrum.

The fineness of described mud is between 325 mesh～800 mesh.

Described except ferrum employing magnetic magnetic separator de-ironing, magnetic field intensity is 1.5 ten thousand～30,000 Gausses.

Spontaneous glaze pottery process for calcining, it is characterised in that before loading of kiln on the contact support zone of spontaneous glaze pottery molding unpainted clay idol, And/or because Ceramic Art Design needs on the position that some surface occurred without or be formed without glaze layer, cover above-mentioned spontaneous glaze pottery molding Unpainted clay idol sealer.

Spontaneous glaze pottery molding unpainted clay idol sealer mud is covered in the bottom of described spontaneous glaze pottery molding unpainted clay idol.

Described spontaneous glaze pottery molding unpainted clay idol sealer mud is coated on the cotton spread out on plate glass, described spontaneous glaze pottery The bottom of molding unpainted clay idol contacts with described cotton and is stained with described mud.

The technique effect of the present invention is as follows: the present invention spontaneous glaze pottery molding unpainted clay idol sealer and method, by stoping part table Separating out from raw glaze of face, efficiently solves spontaneous glaze pottery molding unpainted clay idol the asking of the bottom kiln furnitures such as bonding boron plate in sintering process Topic, style or hierarchical Design for spontaneous glaze pottery open space simultaneously, have promoted spontaneous glaze ceramic production technology effectively Practical.

Detailed description of the invention

Below in conjunction with embodiment, the present invention will be described.

Spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that include that mud, the dry body of described mud include following chemistry Composition and weight content: Al2O3 (aluminium sesquioxide) is 60～76%, and SiO2 (silicon dioxide) is 21～35%, K2O (potassium oxide) is 0.6～1.2%, and CaO (calcium oxide) is 0.4～1%, and Na2O (sodium oxide) is 0.1～0.3%, MgO (magnesium oxide) is 0.1～0.3%, and Fe2O3 (iron sesquioxide) is 0.04～0.07%, and calcination loss thing is 1.5～5%, In general, also have a little or trace fails to understand thing.Described mud is added water by industrial chemicals Al2O3 and clay and mixes.Institute Stating industrial chemicals Al2O3 is 50～70 weight portions, and described clay is 30～50 weight portions.The fineness of described mud is 325 Between mesh～800 mesh.

The preparation method of spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that comprise the following steps: step one, raw material Levigate, industrial chemicals Al2O3 and clay are all put into ball mill and adds water and be finely ground to slurry, described Al2O3 is 50～70 weight Part, described clay is 30～50 weight portions；Step 2, filter, by described levigate after slurry vibrosieve filter；Step Three, except ferrum, the slurry after sieving is carried out except i.e. deriving from raw glaze pottery molding unpainted clay idol sealer, i.e. mud after ferrum.Described mud The fineness of slurry is between 325 mesh～800 mesh.Described except ferrum employing magnetic magnetic separator de-ironing, magnetic field intensity is 1.5 ten thousand～30,000 Gausses.

Spontaneous glaze pottery process for calcining, it is characterised in that before loading of kiln on the contact support zone of spontaneous glaze pottery molding unpainted clay idol, And/or because Ceramic Art Design needs on the position that some surface occurred without or be formed without glaze layer, cover above-mentioned spontaneous glaze pottery molding Unpainted clay idol sealer.Spontaneous glaze pottery molding unpainted clay idol sealer mud is covered in the bottom of described spontaneous glaze pottery molding unpainted clay idol.Institute State spontaneous glaze pottery molding unpainted clay idol sealer mud to be coated on the cotton spread out on plate glass, described spontaneous glaze pottery molding mud The bottom of tire contacts with described cotton and is stained with described mud.

It is hereby stated that, described above contribute to skilled artisan understands that the invention, but and unrestricted the invention Protection domain.Any without departing from the invention flesh and blood to equivalent described above, modify improve and/or The enforcement deleting numerous conforming to the principle of simplicity and carry out, each falls within the protection domain of the invention.

Claims

The most spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that include that mud, the dry body of described mud include changing as follows Studying point and weight content: Al2O3 is 60～76%, SiO2 is 21～35%, and K2O is 0.6～1.2%, CaO be 0.4～ 1%, Na2O are 0.1～0.3%, and MgO is 0.1～0.3%, and Fe2O3 is 0.04～0.07%, calcination loss thing be 1.5～ 5%.
Spontaneous glaze pottery molding unpainted clay idol sealer the most according to claim 1, it is characterised in that described mud is by chemical industry Raw material A l2O3 and clay add water and mix.
Spontaneous glaze pottery molding unpainted clay idol sealer the most according to claim 2, it is characterised in that described industrial chemicals Al2O3 Being 50～70 weight portions, described clay is 30～50 weight portions.
Spontaneous glaze pottery molding unpainted clay idol sealer the most according to claim 1, it is characterised in that the fineness of described mud Between 325 mesh～800 mesh.
The preparation method of the most spontaneous glaze pottery molding unpainted clay idol sealer, it is characterised in that comprise the following steps: step one, former Expecting levigate, industrial chemicals Al2O3 and clay all put into ball mill and adds water and be finely ground to slurry, described Al2O3 is 50～70 weights Amount part, described clay is 30～50 weight portions；Step 2, filter, by described levigate after slurry vibrosieve filter；Step Rapid three, except ferrum, the slurry after sieving is carried out except i.e. deriving from raw glaze pottery molding unpainted clay idol sealer, i.e. mud after ferrum.
The preparation method of spontaneous glaze pottery molding unpainted clay idol sealer the most according to claim 5, it is characterised in that described The fineness of mud is between 325 mesh～800 mesh.
The preparation method of spontaneous glaze pottery molding unpainted clay idol sealer the most according to claim 5, it is characterised in that described Except ferrum uses magnetic magnetic separator de-ironing, magnetic field intensity is 1.5 ten thousand～30,000 Gausses.
The most spontaneous glaze pottery process for calcining, it is characterised in that at the contact support zone of spontaneous glaze pottery molding unpainted clay idol before loading of kiln On, and/or because Ceramic Art Design needs on the position that some surface occurred without or be formed without glaze layer, cover above-mentioned spontaneous glaze pottery Molding unpainted clay idol sealer.
Spontaneous glaze pottery process for calcining the most according to claim 8, it is characterised in that in described spontaneous glaze pottery molding The bottom of unpainted clay idol covers spontaneous glaze pottery molding unpainted clay idol sealer mud.
Spontaneous glaze pottery process for calcining the most according to claim 9, it is characterised in that described spontaneous glaze pottery molding Unpainted clay idol sealer mud is coated on the cotton spread out on plate glass, the bottom of described spontaneous glaze pottery molding unpainted clay idol and described cotton Cloth contacts and is stained with described mud.