CN2416958Y

CN2416958Y - Met like ceramic carrier

Info

Publication number: CN2416958Y
Application number: CN99253757U
Authority: CN
Inventors: 唐甦
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-15
Filing date: 1999-11-15
Publication date: 2001-01-31
Anticipated expiration: 2009-11-15

Abstract

The utility model relates to a net-shaped ceramic carrier which is a novel carrier of a catalyst of a ternary purifier of an automobile, a wire mesh with high temperature resistance is taken as a basis core, a layer of ceramic material is coated and wound on the surface to form the net-shaped ceramic carrier, and the wire mesh with high temperature resistance can be previously made into various geometry shapes to form the net-shaped ceramic carrier with various shapes; then, the single layer of the net-shaped ceramic carrier or multiple layers of net-shaped ceramic carriers are curled to form a space elastomer with a definite shape, and a catalyst is sintered on the surface of the net-shaped ceramic carrier. The utility model combines the advantages of a honeycomb ceramic carrier and the advantages of a metal carrier, places the disadvantages of the honeycomb ceramic carrier and the disadvantages of the metal carrier on one side and has the advantages of simple manufacture, material saving, low cost, long service life, good air permeability, good mechanical performance, lower ignition temperature, etc., and the utility model is the novel carrier of the catalyst of the purifier.

Description

Netted ceramic monolith

The utility model is a kind of novel carriers of the outer ternary cleaner catalyst of vehicle exhaust machine, is used for solving raising ternary cleaner catalytic conversion problem.

Used carrier in the outer ternary cleaner of present automobile machine, can be divided into honeycomb ceramic carrier and metallic carrier two big classes, these two kinds of carriers all have pluses and minuses separately: after the honeycomb ceramic carrier sintered catalyst, the loss of catalyst difficult drop-off, but the complex manufacturing technology of carrier own, yield rate is low, and thermal shock resistance is poor, is easy to fragmentation.Metallic carrier mostly is stainless sheet steel or thick bar silk screen, the catalyst direct sintering is in the metal surface, metallic carrier mechanical strength height, the heat conduction is fast, and initiation temperature is low, but the metal surface is easy to oxidation, the catalyst inefficacy that is easy to come off, above-mentioned defective has directly influenced service life of clarifier, for solving the shortcoming separately of two kinds of carriers, relevant department is explored.

The purpose of this utility model provides a kind of honeycomb ceramic carrier and metallic carrier advantage of combining, and has abandoned their a kind of new-type composite catalyst carriers of shortcoming separately.

The purpose of this utility model is achieved in that with the refractory metal silk screen be basic core, at woven wire surface sintering parcel one deck pottery, makes netted ceramic monolith.Netted ceramic monolith can be corrugated or various geometry, the netted ceramic monolith of single or multiple lift is curled into the spatial elastic body of definite shape.Ceramic layer on the silk screen is protected silk screen, and is convenient to sintering two years and catalyst, and this is a kind of novel composite catalyst carrier with metallic carrier and honeycomb ceramic carrier two-fold advantage.

Concrete structure of the present utility model is provided by following examples and accompanying drawing; Fig. 1 is a woven wire, and Fig. 2 is netted ceramic monolith floor map, and Fig. 3 is single netted ceramic monolith schematic diagram, and Fig. 4 is single netted ceramic monolith schematic cross-section, and Fig. 5 is the two kinds of netted ceramic cross section of bellows-shaped side schematic views.Fig. 6 is meant that the netted ceramic monolith of single or multiple lift is curled into the spatial elastic body schematic diagram of definite shape.

Below in conjunction with accompanying drawing, describe the CONSTRUCTED SPECIFICATION that the utility model proposes in detail;

Fig. 1～Fig. 6, with the refractory metal silk screen is basic core, wrap up one deck ceramic material in its surface, carry out sintering, make woven wire surface sintering parcel one deck ceramic material, make netted ceramic monolith, the refractory metal silk screen is pressed into required geometry in advance, make the netted ceramic monolith of required geometry, then the netted ceramic monolith of single or multiple lift is curled into the spatial elastic body of definite shape.Sintering of catalyst is on netted ceramic monolith surface.

The utility model combines the advantage of honeycomb ceramic carrier and metallic carrier, has abandoned it Shortcoming, it is simply with low cost to have a making, be difficult for oxidation after the sintered catalyst and come off, The mechanical strength height, resistance to sudden heating is good, and the life-span is long, good permeability, materials are economized, the ignition temperature Spend lowly, low-temperature catalyzed conversion ratio advantages of higher is the outer ternary cleaner catalyst of automobile machine Novel carriers.

Claims

1. compound netted ceramic monolith is characterized in that; With the refractory metal silk screen is basic core, at woven wire surface sintering parcel one deck pottery, makes netted ceramic monolith.

2. the described compound netted ceramic monolith of claim 1, it is characterized in that: netted ceramic monolith can be corrugated or various geometry, the netted ceramic monolith of single or multiple lift is curled into the spatial elastic body of definite shape.