CN2931492Y - Copper seeping structure of datum level free iron base copper seeping powder metallurgical product - Google Patents

Abstract

The utility model relates to a cupric cemented structure without a base level for iron-base cupric cemented powder metallurgical products, relating to powder metallurgical technique field. The utility model is characterized by comprising a product (1), a bracket (2), a cupric cemented agent (3), a mesh belt (4) and a sintering furnace (5). The cupric cemented agent (3) is placed on the product (1) and the product (1) is placed on the bracket (2) which is arranged on the mesh belt (4). The mesh belt (4) is arranged in the sintering furnace (5). The utility model achieves small product distortion, good surface corrosion phenomenon, low product intensity, standard surface treatment effect and low cost.

Description

No reference plane iron-based oozes the steel structure that oozes of copper powder metallurgy goods

Technical field:

The utility model relates to a kind of steel structure that oozes that the reference plane iron-based oozes the copper powder metallurgy goods that do not have.Belong to powder metallurgical technology.

Background technology:

In present ferrous based powder metallurgical product and since its with conventional machining process such as forging variant on the production product strength, ooze process for copper in order to remedy this species diversity, to have adopted.Traditional process for copper process of oozing is as follows: compacted products → and in 1110 ℃ of sintering in the net belt type sintering oven → on sintered blank, put copper seeping agent → ooze copper in 1120 ℃ of net belt type sintering ovens.Conventional art must have a reference plane when oozing copper, the infiltration face also must be the plane, if there is not reference plane (as Fig. 2,3), the product that process for copper produces is oozed in employing, and there are the following problems: the product distortion is big (geomery 1.2%, morpheme size B level) too, surface corrosion phenomenon serious (reaching 80%), product strength low (minimum value of MPIF-35 standard), surface treatment effect (oozing out) not up to standard, cost raises, energy dissipation.Owing to as above reason, much can change powder metallurgy production into and can't change the mode of production with the product that promotes product quality.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned deficiency, and the steel structure that oozes that a kind of product distortion is little, no reference plane iron-based that the surface corrosion phenomenon is good, product strength is low, surface treatment effect is up to standard, cost is low oozes the copper powder metallurgy goods is provided.

The purpose of this utility model is achieved in that a kind of steel structure that oozes that the reference plane iron-based oozes the copper powder metallurgy goods that do not have, it is characterized in that: it comprises: product, support, copper seeping agent, guipure and sintering oven, described copper seeping agent is emitted on the product, product is emitted on the support, be placed on the guipure, guipure places sintering oven.

Its concrete production technique is: product is emitted on the support, discharges copper seeping agent simultaneously on product, place 1110 ℃～1120 ℃ net belt type sintering ovens while sintering to ooze copper.

The beneficial effects of the utility model have:

1, shape of product tolerance deflection is below 0.5%, and the form and position tolerance deflection is in the A of GB1184-80 level;

2, product surface corrosion phenomenon occurrence rate is below 0.1%;

3, product strength reaches the ultimate value of MPIF-35;

4, product surface is handled not have and is oozed out immaculate;

5, sintering and ooze copper and carry out simultaneously unites two into one two procedures, has reduced energy use, has reduced cost.

Description of drawings:

Fig. 1 does not have the synoptic diagram that oozes steel structure that the reference plane iron-based oozes the copper powder metallurgy goods for the utility model.

Fig. 2 is that the utility model is by cemented iron base powder metallurgy product cross section figure.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is the support sectional view that the utility model adopted.

Fig. 5 is the vertical view of Fig. 4.

Embodiment:

Referring to Fig. 1, the utility model does not have the steel structure that oozes that the reference plane iron-based oozes the copper powder metallurgy goods, for no reference plane product 1 (as Fig. 2,3), when infiltration, adopt special stand 2 (as Fig. 4,5) support, support 2 adopts refractory materials, support 2 one sides are the plane, one side is by being oozed the die shape design that the copper products surface step rises and falls, the logical support of product with this nothing reference plane has converted a reference plane product to like this, its concrete production method is: product 1 is emitted on the support 2, discharging copper seeping agent 3 on product 1 places 1110 ℃～1120 ℃ guipures, 4 formula sintering ovens, 5 while sintering to ooze copper simultaneously.

The making method of described support is as follows:

A, drafting product figure;

B, to select a reference plane, selection mode on product be earlier selected arc surface less than 20%, all the other are the planar face, this simultaneously relative face be selected reference plane.

C, draw the stent support face by the profile of product benchmark face, bearing surface saves the following concave station of 2mm, but need guarantee with the product contact area＞70%, the support another side is the plane, thickness minimum place＞6mm.

Claims (1)

1, a kind of do not have a steel structure that oozes that the reference plane iron-based oozes the copper powder metallurgy goods, it is characterized in that: it comprises: product (1), support (2), copper seeping agent (3), guipure (4) and sintering oven (5), described copper seeping agent (3) is emitted on the product (1), product (1) is emitted on the support (2), support (2) places on the guipure (4), and guipure (4) places sintering oven (5).

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