CN204564875U - Polynary microalloy face coat strengthening mould - Google Patents

Abstract

Utility model discloses a kind of polynary microalloy face coat strengthening mould, the utility model select at present with, the forming internal threads spinning ring of bearing steel processing, use polynary microalloy process for surface coating technology, formed spinning ring working face is generated, and one or more layers is superhard, high abrasion, the strengthened coat of low-friction coefficient, case hardness brings up to original more than 4 times, increase hardness and the wearability of spinning ring working face, reduce the friction with steel ball in shaping spinning process, improve the service life of spinning ring, reduce the size fluctuation of product (inner screw thread copper pipe), promote inner screw thread copper pipe surface quality, thus obtain client's serviceability better, significantly reduce product curved client, swollen, expand scrapping in use procedure.

Description

Multi-element micro-alloy surface coating strengthening forming die

technical field

The utility model relates to a forming and processing equipment for an internally threaded copper pipe, in particular to a forming mold for strengthening the surface coating of a multi-element microalloy.

Background technique

At present, the internal thread forming spinning ring used in the copper pipe processing industry is made of bearing steel (GCr15) to form a certain shape and size (inner surface), and then the working surface is strengthened by heat treatment. After quenching and tempering, the Rockwell hardness of the working surface is in the Between HRC62-HRC64 (about Vickers hardness HV740-HV800). When in use, it forms a spinning system with steel balls for operation. Since the steel balls are also made of bearing steel (GCr15), the wear resistance of the spinning ring is not enough, and the working surface is relatively easy to wear and be scrapped. At the same time, due to the forming process The non-uniform wear of the middle working surface (such as the processing accuracy of the spinning ring, the fluctuation of the billet tube, the vibration of the high-speed motor, the fluctuation of the drawing speed, etc.), makes the surface texture of the inner threaded copper pipe produced poor, and the tooth height and wall thickness exceed the standard. cause the product to fail.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a multi-component micro-alloy surface coating to strengthen the internal thread forming spinning ring.

The technical scheme that the utility model solves its technical problem adopts is:

The multi-element micro-alloy surface coating reinforced molding die is characterized in that it includes a spinning ring, and a layer of strengthening coating is provided on the working surface of the spinning ring.

The spinning ring is a circular ring, and the inner edge of the circular ring has an arc-shaped surface that contacts and rubs with the steel ball, and the working surface is the arc-shaped surface.

The arc surface is an arc surface.

The beneficial effects of the utility model are: the utility model selects the internal thread forming spinning ring currently in use and processed by bearing steel, and uses the multi-component micro-alloy surface coating technology to make the working surface of the forming spinning ring form a layer or Multi-layer superhard, high wear-resistant, low friction coefficient enhanced coating, the surface hardness is increased to more than 4 times the original, the hardness and wear resistance of the working surface of the spinning ring are increased, and the friction with the steel ball during the forming spinning process is reduced. friction, improve the service life of the spinning ring, reduce the dimensional fluctuation of the product (internal threaded copper tube), improve the surface quality of the internal threaded copper tube, so as to obtain better customer performance, and greatly reduce the bending, expansion and expansion of the product at the customer. Scrapping during use. In summary: its advantages are:

1. It solves the problem of uneven wear such as ring grooves and pits in the spinning ring during the use process, and greatly improves the service life of the mold;

2. Reduce the frictional resistance of the spinning ring;

3. Reduce the size fluctuation of internal thread products;

4. Improve product surface quality (uniformity of spinning lines).

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Detailed ways

Embodiments of the present invention will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The embodiments described below by referring to the figures are exemplary and intended to explain the present utility model, but should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that for orientation words, if there are terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower ", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Inverse "Hour hand" and other indication orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to The specific orientation structure and operation should not be interpreted as limiting the specific protection scope of the present utility model.

In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Therefore, the definition of "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the utility model, the meaning of "multiple" means two or more, unless There are other specific restrictions.

In this utility model, unless otherwise clearly specified and limited, if there are terms "assembled", "connected", and "connected", the terms should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can also be mechanical connection; it can be connected directly or through an intermediary, and it can be that two components are internally connected. Those of ordinary skill in the art can understand the specific meanings of the above-mentioned terms in the present utility model according to specific situations.

In the utility model, unless otherwise specified and limited, a first feature being "on" or "under" a second feature may include that the first and second features are in direct contact, and may also include that the first and second features are not not in direct contact but through another characteristic contact between them. Moreover, "above", "below" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature the height of. "Above", "below" and "under" the first feature on the second feature include that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally higher than the second feature.

In the following, the specific implementation of the utility model will be further described in conjunction with the accompanying drawings, so that the technical solution of the utility model and its beneficial effects will be clearer and more definite.

Referring to Fig. 1, the utility model discloses a multi-component micro-alloy surface coating strengthening forming mold, including a spinning ring 1, which is manufactured by ordinary bearing steel (GCr15) material, and the spinning ring 1 The working surface 3 is equipped with a layer of strengthening coating 2, which uses multi-component micro-alloy surface coating technology to form one or more layers of superhard, high wear-resistant, The strengthened coating 2 with low friction coefficient, after multi-component micro-alloy surface strengthening treatment, the hardness is increased by more than 4 times, which greatly improves the process performance (wear resistance) of the spinning ring 1, and solves the problem of spinning ring 1 during use. Product unqualified problems caused by easy sticking to copper, easy wear, non-durable and low life expectancy.

As shown in the figure, the spinning ring 1 is a circular ring, and the inner edge of the circular ring has an arc-shaped surface that is in contact with the steel ball. The arc-shaped surface is the working surface, and the arc-shaped surface is an arc-shaped surface. When in use, two spinning rings 1 and steel balls form a spinning mechanism with a certain inner diameter (inscribed circle R). The two spinning rings 1 are symmetrically arranged, and there is an adjustable gap 4 between the two spinning rings 1. And the inner edges of the adjacent ends of the two spinning rings 1 are provided with working surfaces.

The base body of the spinning ring 1 is a general-purpose bearing steel GCr15 material, which is machined into shape; a suitable multi-component micro-alloy surface coating material is selected for surface strengthening treatment; and the surface strengthening treatment should be properly processed to ensure that the spinning ring 1 works The surface multi-component micro-alloy coating has uniform thickness and strong bonding force, which can reduce the non-uniform wear of the spinning ring 1, reduce frictional resistance and improve the service life.

Above, a kind of multi-element microalloy surface coating reinforced molding die provided by the embodiment of the present invention has been introduced in detail. In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments It is only used to help understand the method of the utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation and scope of application. In summary, As stated above, the contents of this specification should not be construed as limiting the utility model.

Claims (3)

1. The multi-element micro-alloy surface coating strengthening forming die is characterized in that: it includes a spinning ring, and the working surface of the spinning ring is provided with a layer of strengthening coating. 2. multi-element micro-alloy surface coating reinforcement molding die according to claim 1, is characterized in that: described spinning ring is an annulus, and this annulus inner edge has the arc surface that contacts friction with steel ball, so The above-mentioned working surface is the arc surface. 3. The multi-element micro-alloy surface coating reinforcement molding die according to claim 2, characterized in that: the arc-shaped surface is an arc-shaped surface.