CN102847560A - Production method of oversize specification honeycomb ceramic carrier - Google Patents

Abstract

Disclosed is a production method of an oversize specification honeycomb ceramic carrier. The production method includes: dividing the oversize specification honeycomb ceramic carrier into smaller splicing unit blocks; and producing the splicing unit blocks independently, and splicing the splicing unit blocks to obtain the target product. Compared with the prior art, optional specifications of honeycomb ceramic carriers with optional diameters, height smaller than 1000mm, hole density smaller than 600 meshes, grid thickness larger than 0.10mm can be produced according to clients' requirements.

Description

A kind of manufacture method of super large-scale honeycomb ceramic carrier

Technical field

The present invention relates to the manufacturing field of special cermacis, be specially a kind of manufacture method of super large-scale honeycomb ceramic carrier.

Background technology

Along with the expansion of honeycomb ceramic carrier in the application of catalytic purification industry, and the incomparable superiority that has as catalyst carrier of ceramic honey comb, the improvement aspect that ceramic honey comb has been deep into the every field of prevention and control of air pollution, particularly all kinds of motor exhausts has irreplaceable status especially.

Along with deepening constantly of environmental protection, the improvement of motor exhaust requires also from small-sized gasoline engine vehicle originally, the diesel locomotive that has developed into present all kinds of large discharge capacities progressively, or even large-scale marine ships.When the discharge capacity of the engine of required improvement was increasing, the sectional area of the honeycomb ceramic carrier in tail gas catalyzed evolution and volume also required increasing.

Because be subjected to the impact of the factors such as forming machine, mould, traditional ceramic honey comb production technology can not have been produced diameter greater than the super large-scale carrier for ceramic honeycomb catalyst of 350mm.

Summary of the invention

Technical problem solved by the invention is to provide a kind of manufacture method of super large-scale honeycomb ceramic carrier, and the method is first by being divided into the super large-scale honeycomb ceramic carrier less concatenation unit piece; Then produce separately the concatenation unit piece, again the concatenation unit piece is spliced into target product.

Technical problem solved by the invention realizes by the following technical solutions:

A kind of manufacture method of super large-scale honeycomb ceramic carrier specifically may further comprise the steps:

(1) according to client's product specification requirement, product end surface design is cut apart, the product of super large-scale is divided into polylith and holes of products structure, highly the same concatenation unit piece; End face is cut apart according to following principle and carried out: the junior unit piece of the every kind of specification that a) is split by whole product all must be can be integrated with mould; B) cell block after cutting apart must be square and square combination; Perhaps circular and polylith ring-shaped combination; The perhaps fan-shaped combination of polylith;

(2) design concatenation unit piece mould;

(3) produce the concatenation unit piece according to the production technology of traditional honeycomb ceramic carrier, technique is: batching → mixing → kneading → old → vacuum pugging → extrusion molding → microwave drying → cutting processing → burn till;

The concatenation unit piece that (4) will burn till according to step (1) cut apart oppositely, be bonded to the ceramic honey comb spliceosome with the high temperature clay;

(5) each spliced spliceosome is put into hot air drier under 100-200 ℃ temperature dry 2-5 hour, after the splicing clay parches fully, taken out spliceosome cool to room temperature in air;

(6) according to the requirement of client's product specification, with the cylindrical lapping machine ceramic honey comb spliceosome is carried out cylindrical lapping processing, the excircle dimension of the ceramic honey comb spliceosome after the grinding is than the little 4-8mm of product diameter of customer requirement;

(7) last on the sidewall of the ceramic honey comb spliceosome that processes, make the thick crust of one deck 2-4mm with the high temperature clay;

(8) product of having made behind the skin guarantees that at air drying 1-2 days crust has enough carrying intensity.

Compared with prior art, the invention has the beneficial effects as follows: can according to client's requirement produce arbitrary diameter, height less than 1000mm, hole density less than 600 orders, the grid wall thickness honeycomb ceramic carrier greater than any specification of 0.10mm.

Description of drawings

Fig. 1 is the cut apart schematic diagram of square with the square combination.

Fig. 2 is the schematic diagram of cutting apart circular and the polylith ring-shaped combination.

Fig. 3 is the schematic diagram of cutting apart of the fan-shaped combination of polylith.

Fig. 4 is that 9 formulas are cut apart schematic diagram.

Fig. 5 is 9 formula splicing schematic diagrames.

Fig. 6 is the periphery attrition process, make the process flow diagram of skin.

The specific embodiment

In order to make technological means of the present invention, creation characteristic, workflow, using method reach purpose and effect is easy to understand, below further set forth the present invention.

Embodiment 1

Make the honeycomb ceramic carrier of 600mm, height 480mm, 160 orders, wall thickness 0.18mm with the splicing legal system.

Manufacturing process:

1) according to Fig. 4 product is divided into 9 concatenation unit pieces, every concatenation unit piece is of a size of 210mm*210mm*480mm;

2) be 6.5% according to shrinkage ratio, make the ceramic honey comb mould of 160 orders, wall thickness 0.18mm, product length of side 210mm;

3) produce the concatenation unit piece according to following explained hereafter: batching → mixing → kneading → old → vacuum pugging → extrusion molding → microwave drying → cutting processing → burn till;

4) according to the step of Fig. 5, will burn 9 concatenation unit pieces that will make with the high temperature clay, be bonded to a ceramic honey comb spliceosome;

5) each spliced spliceosome is put into hot air drier under 150 ℃ temperature dry 2 hours, then spliceosome is taken out cool to room temperature in air, carry out again next step splicing with the high temperature clay, obtain a ceramic honey comb spliceosome that drying is good until splicing is finished;

6) the ceramic honey comb spliceosome that drying is good is placed on and carries out cylindrical lapping processing on the cylindrical lapping machine, the ceramic honey comb spliceosome is processed into the cylindrical ceramic honey comb spliceosome that diameter is 594mm shown in figure four;

7) cylindrical ceramic honey comb spliceosome is placed on the rotation platform, as shown in Figure 6 with the crust of high temperature clay after the sidewall after the grinding is made last layer 3mm;

8) product that will make skin was placed on air drying 2 days, and the product manufacturing is finished.

Above demonstration and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (1)

1. the manufacture method of a super large-scale honeycomb ceramic carrier is characterized in that: specifically may further comprise the steps:

(1) according to client's product specification requirement, product end surface design is cut apart, the product of super large-scale is divided into polylith and holes of products structure, highly the same concatenation unit piece; End face is cut apart according to following principle and carried out: the junior unit piece of the every kind of specification that a) is split by whole product all must be can be integrated with mould; B) cell block after cutting apart must be square and square combination; Perhaps circular and polylith ring-shaped combination; The perhaps fan-shaped combination of polylith;

(2) design concatenation unit piece mould;

(3) produce the concatenation unit piece according to the production technology of traditional honeycomb ceramic carrier, technique is: batching → mixing → kneading → old → vacuum pugging → extrusion molding → microwave drying → cutting processing → burn till;

The concatenation unit piece that (4) will burn till according to step (1) cut apart oppositely, be bonded to the ceramic honey comb spliceosome with the high temperature clay;

(5) each spliced spliceosome is put into hot air drier under 100-200 ℃ temperature dry 2-5 hour, after the splicing clay parches fully, taken out spliceosome cool to room temperature in air;

(6) according to the requirement of client's product specification, with the cylindrical lapping machine ceramic honey comb spliceosome is carried out cylindrical lapping processing, the excircle dimension of the ceramic honey comb spliceosome after the grinding is than the little 4-8mm of product diameter of customer requirement;

(7) last on the sidewall of the ceramic honey comb spliceosome that processes, make the thick crust of one deck 2-4mm with the high temperature clay;

(8) product of having made behind the skin guarantees that at air drying 1-2 days crust has enough carrying intensity.

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