CN104944886A - Production method of refractory plate - Google Patents

Abstract

The invention discloses a production method of a refractory plate, relating to the technical field of manufacturing of refractory materials. The refractory plate is prepared from the following raw materials in parts by weight: 100-120 parts of aluminum silicate fiber, 9-12 parts of silicon aluminasol, 12-15 parts of ethyl orthosilicate and 8-10 parts of additive. The method comprises the following steps: weighing the raw materials according to parts by weight, adding into a pulper, adding water, stirring to obtain a cotton pulp, preparing a plate blank from the cotton pulp by using a vacuum forming machine, and drying the plate blank until the water content is lower than 8%; and cleaning the surface of the plate blank, spraying a veneer-type fire-resistant paint, spraying the second coating after the first coating is basically dried and cured, spraying the third or fourth coating, and obtaining the refractory plate after the coatings are completely dried and cured. Compared with the prior art, the refractory plate has the advantages of light volume weight and favorable heat-insulating property, and avoids great increase of the supporting value of the substrate when being used as a fire-resistant surface-decoration heat-insulating material.

Description

The production method of refractory slab

Technical field

The present invention relates to refractory materials manufacturing technology field, especially a kind of production method of refractory slab.

Background technology

Refractory slab, also known as PLASTIC LAMINATED, has certain intensity and hardness, and Resistance to wind Erosion is strong, and have stable high-temperature performance, under the condition of high temperature, compressive strength is high, is commonly used for high temperature insulating material.The refractory slab unit weight of current production is large, as fp surface decoration lagging material, the supporting power of matrix is significantly increased.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of production method of refractory slab, large with the refractory slab unit weight solving the production of existing method, as the problem that fp surface decoration lagging material makes the supporting power of matrix significantly increase.

In order to solve the problem, the technical solution used in the present invention is: the production method of this refractory slab, comprises the raw material of following weight part: aluminum silicate fiber 100 parts ~ 120 parts, silicon-aluminum sol 9 parts ~ 12 parts, tetraethoxy 12 parts ~ 15 parts, additive 8 parts ~ 10 parts;

Its operation steps is as follows:

A. aluminum silicate fiber, silicon-aluminum sol, tetraethoxy, additive is taken by above-mentioned each parts by weight of raw materials, for subsequent use;

B. each raw material is put into pulper, add water and carry out stirring and make cotton pulp;

C. adopt vacuum forming machine that step b gained cotton pulp is made slab, kiln put into by slab, is dried to water ratio lower than 8% the temperature of 100 DEG C ~ 140 DEG C;

D. the dust of step c gained steel slab surface, greasy dirt, foreign material etc. are cleaned out;

E. to steel slab surface spray finish type frie retardant coating, after the solidification of first coating substantially dry, then spray second, spray three Dao Zhi tetra-roads altogether; First coat-thickness≤0.15mm, later per pass coat-thickness is 0.2mm ~ 0.3mm;

F. the coating of steel slab surface completely solid after, obtain this refractory slab.

In the production method technical scheme of above-mentioned refractory slab, technical scheme can also be more specifically: described additive is aluminum oxide fine powder.

Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:

The present invention adopts aluminum silicate fiber to make main raw material, makes refractory slab.Aluminum silicate fiber is a kind of lightweight refractory, there is low heat conductivity, excellent thermostability and chemical stability, not containing binding agent and corrosive material, the refractory slab unit weight of production is light, and heat-proof quality is good, as fp surface decoration lagging material, the supporting power of matrix is avoided significantly to increase.

Embodiment

Below in conjunction with specific embodiment, the invention will be further described:

Embodiment 1

A production method for refractory slab, comprises the raw material of following weight: aluminum silicate fiber 100kg, silicon-aluminum sol 9kg, tetraethoxy 12kg, aluminum oxide fine powder 8kg;

Its operation steps is as follows:

A. aluminum silicate fiber, silicon-aluminum sol, tetraethoxy, aluminum oxide fine powder is taken by the weight of above-mentioned each raw material, for subsequent use;

B. each raw material is put into pulper, add water and carry out stirring and make cotton pulp;

C. adopt vacuum forming machine that step b gained cotton pulp is made slab, kiln put into by slab, is dried to water ratio lower than 8% the temperature of 100 DEG C;

D. the dust of step c gained steel slab surface, greasy dirt, foreign material etc. are cleaned out;

E. to steel slab surface spray finish type frie retardant coating, after the solidification of first coating substantially dry, then spray second, spray three roads altogether; First coat-thickness≤0.15mm, later per pass coat-thickness is 0.2mm;

F. the coating of steel slab surface completely solid after, obtain this refractory slab.

Embodiment 2

A production method for refractory slab, comprises the raw material of following weight: aluminum silicate fiber 120kg, silicon-aluminum sol 12kg, tetraethoxy 15kg, aluminum oxide fine powder 10kg;

Its operation steps is as follows:

A. aluminum silicate fiber, silicon-aluminum sol, tetraethoxy, aluminum oxide fine powder is taken by the weight of above-mentioned each raw material, for subsequent use;

B. each raw material is put into pulper, add water and carry out stirring and make cotton pulp;

C. adopt vacuum forming machine that step b gained cotton pulp is made slab, kiln put into by slab, is dried to water ratio lower than 8% the temperature of 140 DEG C;

D. the dust of step c gained steel slab surface, greasy dirt, foreign material etc. are cleaned out;

E. to steel slab surface spray finish type frie retardant coating, after the solidification of first coating substantially dry, then spray second, spray four roads altogether; First coat-thickness≤0.15mm, later per pass coat-thickness is 0.3mm;

F. the coating of steel slab surface completely solid after, obtain this refractory slab.

Claims (2)

1. a production method for refractory slab, is characterized in that the raw material comprising following weight part: aluminum silicate fiber 100 parts ~ 120 parts, silicon-aluminum sol 9 parts ~ 12 parts, tetraethoxy 12 parts ~ 15 parts, additive 8 parts ~ 10 parts;

Its operation steps is as follows:

A. aluminum silicate fiber, silicon-aluminum sol, tetraethoxy, additive is taken by above-mentioned each parts by weight of raw materials, for subsequent use;

B. each raw material is put into pulper, add water and carry out stirring and make cotton pulp;

C. adopt vacuum forming machine that step b gained cotton pulp is made slab, kiln put into by slab, is dried to water ratio lower than 8% the temperature of 100 DEG C ~ 140 DEG C;

D. the dust of step c gained steel slab surface, greasy dirt, foreign material etc. are cleaned out;

E. to steel slab surface spray finish type frie retardant coating, after the solidification of first coating substantially dry, then spray second, spray three Dao Zhi tetra-roads altogether; First coat-thickness≤0.15mm, later per pass coat-thickness is 0.2mm ~ 0.3mm;

F. the coating of steel slab surface completely solid after, obtain this refractory slab.

2. the production method of refractory slab according to claim 1, is characterized in that: described additive is aluminum oxide fine powder.