JPS59199166A - Production of mechanical parts having wear resistant surface on some part - Google Patents

Abstract

PURPOSE:To make easily mechanical parts made of metals wear resistant by spraying a material having wear resistance on the part requiring wear resistance thereby providing wear resistance to one surface. CONSTITUTION:A metallic material having wear resistance such as a special steel or sintered tungsten carbide alloy or a non-metallic material such as ceramics is prepd. A preform 1 is manufactured from such wear resistant material in such a way that a wear resistant surface 11 appears on one surface by metalicon to a certain thickness t. A metallic material or non-metallic material is cast on the surface 12 of the preform 1 opposite from the surface 11 to a prescribed outside diameter and size. A mechanical part body 5 is formed integrally with the body 1. The body 5 is formed of a metallic material such as aluminum, light alloy or bronze.

Description

[Detailed description of the invention] Regarding which manufacturing method.

There are various types of mechanical parts whose surfaces are in constant contact with the opposing surfaces of mechanical parts and which move relative to each other under pressure. In order to improve the wear resistance of the contact surface, such parts may be manufactured entirely from a special metal material that has wear resistance, including the contact surface, or if the part is made of steel, the contact surface may be Generally, methods such as carburizing only the surface and applying heat treatment are widely adopted.

However, such means have various problems such as high material costs and the need for complicated processing steps.

The present invention solves these problems in conventionally known mechanical parts having relatively movable contact surfaces, and improves wear resistance which can be achieved at relatively low cost and with a small number of steps. The purpose is to obtain a manufacturing method for mechanical parts, etc.

In order to achieve this object, the present invention is made of metallicon made of a wear-resistant material in advance, that is, a plate-like, cylindrical, etc. having a desired shape and thickness, which is provided with a wear-resistant surface on one side by a spraying method. A preformed body is manufactured, and then gold BL material that forms the main body of the machine part is cast on the surface opposite to the wear-resistant surface of this preformed body, and the preformed body and
It is characterized in that it is an integral product with a main body made of a metal material.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of the present invention will be described below with reference to FIGS. 1 to 7 of the accompanying drawings showing the outline of its implementation.

As an example, FIG. 1 shows a mechanical component 10 having a planar relative movement contact surface /, but in the method of the present invention, this mechanical component /θ is A flat preformed body / having a certain thickness t and having a relatively moving contact surface /1 at , and a surface / of this flat plate shaped body l opposite to the relatively moving contact surface /1. , and a metal main body S having substantially the same planar contour as the preformed body S having a thickness T, for example, and integrally formed thereon.

That is, in the present invention, first, as shown in FIG. 2, a flat preform l is coated with a wear-resistant material, for example,
After manufacturing a molded product with a flat plate-like profile with a thickness of t from metallic materials such as wear-resistant special steel and sintered tungsten carbide alloy, or non-metallic materials such as sesmic, Casting a metal material such as aluminum or bronze to a thickness T to form the main body 5 on the surface l opposite to the sliding surface l,
This is a flat mechanical component IO as shown in FIG.

By doing this, the main body! In this case, since the surface of the preform has a porous structure due to the nature of metallicon, the metal material of the cast body 5 will be cast. penetrates into the porous structure of the surface 12 of the preform l, so that the preform and the main body S form a composite body 10 that is firmly joined together.

In this way, the mechanical component IO according to the invention is such that the relatively moving contact surface /I, which is wear-resistant, is composed of a preform / made of metallicon from a wear-resistant material, and the main body 5 is formed from a residual material integrally joined to the surface /, opposite to the relative movement contact surface l, of the preform /, so that the relative movement contact surface 11 has sufficient wear resistance. It is possible to provide a mechanical component io which is equipped with the following and has sufficient rigidity due to the metal material 5.

In addition, in this case, the relative movement contact surface /l can be finished into a smooth surface with the desired accuracy by performing appropriate machining, and in addition, in the case of , the finished surface has porosity as a property of metallicon. so that, for example, when applying lubricant to this surface l, the lubricant can be stored in the numerous pores left on the contact surface l, and thus self-sustained. It is also possible to exhibit a type of so-called oilless lubrication effect while retaining lubricity.

In the above description, as an embodiment of the method of the present invention, it is assumed that the machine part IO is made of a preformed material/made of a wear-resistant material, and the main body S is made of aluminum, light alloy, bronze, etc. However, if the main body S is not made of such a material, but is made of a material that is not highly permeable, such as cast iron, in this case, the molten cast iron is not necessarily a preform/preform. can not be expected to penetrate sufficiently into the porous structure of As shown in Fig. 2, a large number of 48/3 rectangular cross sections are formed at a certain depth so as to intersect with each other, and the main body S is joined to the preform L by casting. It is conceivable that a portion of the material of the main body 5 also fills these m.

In this way, the preform body S and the main body S can be separated by the penetration of the material constituting the body body into the porous structure of the preform body L, as well as by the penetration into the grooves 13. become firmly joined together.

For this purpose, grooves/, formed in the surface 12 of the preform l,
It is generally desirable that the cross-sectional shape is dovetail-shaped (see FIG. 5).

Next, as another example of the method of the present invention, for example, the sixth
As shown in the figure, there is also a bushing 20 whose inner peripheral surface has a wear-resistant surface / /, but in the case of the bush 20 with The preformed body ii is made in advance from a wear-resistant material with metallicon to a certain thickness by an appropriate means, and its outer periphery //,! A cylindrical bushing 20 integrated with the preform /l can be constructed by casting another metal material into the bushing body /S having predetermined external dimensions.

In this case as well, the preform l/. Possible materials include metal materials such as wear-resistant special steel and sintered tungsten carbide alloy, and non-metallic materials such as ceramics, and non-ferrous metals such as aluminum, light alloys, and bronze. or ferrous metal materials such as cast iron. In the case of ferrous metal materials, it is conceivable to provide a large number of rectangular cross sections at a certain depth on the outer peripheral surface of the preform //, as shown in Figure 7. . Furthermore, depending on the metal material of the bushing body 15, it may be necessary to consider making the cross section of the grooves groove-like as shown in FIG.

As described above, the method of the present invention eliminates the need to manufacture mechanical parts with surfaces that require wear resistance entirely from metal materials that have wear resistance. Only the necessary parts are made of a metal material that has the desired wear resistance, and the rest is made of a material that does not have particular wear resistance, such as iron materials such as cast iron, aluminum, light alloys, bronze, etc. It is possible to manufacture a mechanical part made of a non-ferrous metal material, which is rigid as a whole and has the desired wear resistance in the necessary places, at a relatively low cost and with a small number of steps. In particular, the method of the present invention is highly effective when applied to mechanical parts such as light joint trays to provide wear resistance and stress resistance. The ability to select one is also particularly distinctive.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a mechanical component having a planar relatively moving contact surface manufactured by the inventive method;
FIG. 2 is a perspective view showing the preform, FIG. 3 is a perspective view showing a modification of FIG. 1, and FIG. 3 is a perspective view of a mechanical component having the preform shown in FIG. FIG. 5 is an enlarged sectional view showing the deformation of Rj formed on one surface of the preform, FIG. 6 is a perspective view showing bushings as seven examples of mechanical parts manufactured by the method of the present invention, FIG. 7 is a perspective view showing a preformed body for this purpose. ///...Preformed body:/,, //,...Relative movement contact surface;/,, //3...Vortex,:S,/! i...Body; 1
0... Mechanical parts Niko 0... Bunyu. Procedural amendment dated June 15, 1980, Mr. Commissioner of the Patent Office 1. Indication of the case: Showa St. Patent Application No. 190 2. Title of the invention: Process for manufacturing mechanical parts having a wear-resistant surface as a part 3. Amendment Relationship with the case of the person who filed the patent application Contents of the amendments made by Patent Applicant 4 and Agent 6 Part of the statement in the specification of the present application is corrected as follows. (1) The "Scope of Claims" will be corrected as shown in the attached sheet. (2) Page 3, line 2θ, page S, line 7°10
-//, -0 line, 6th page, λ line, gth page, gth line, /7th line, 7th page, 1st line, 19th line "metal material j" as "metal material or non-metal material such as plastic" I am corrected. (3) On the third page, 2θ "Made of metal material" is changed to "Made of metal material, non-metal material such as plastic", and in the 13th line "Made of metal" is changed to "Made of metal material, non-metal material such as plastic" I am corrected. (4) ``Metal materials'' in the 3rd line of page S are changed to ``metal materials and non-metal materials such as plastics'' + 5) ``Made of bronze'' in the 2θ line of page 3 is changed to ``made of metal materials such as bronze,
Made of non-metallic materials such as plastic.'' (6) On page 3, line 2θ, "light metal film" is corrected to "made of light metal, plastic material, etc." 2. Claims l A method for manufacturing a mechanical part having a wear-resistant surface on a portion thereof, wherein a preform is made of a wear-resistant material so that a wear-resistant surface appears on one side with metallicon. After manufacturing a preform to a certain thickness by an appropriate means, a metal material, a non-metallic material, etc. is cast onto the surface of the preform opposite to the wear-resistant surface to have a predetermined external shape and dimensions. 1. A method for manufacturing a mechanical component using a mat, comprising: molding a mechanical component body made of a metal material integrally with a preformed body. (Y) The wear-resistant material is a wear-resistant special steel, a metal material such as a sintered tungsten carbide alloy, or a non-metallic material such as a ceramic, and the metal material forming the body is aluminum, light alloy, bronze, etc. The manufacturing method according to claim 7, which is a non-ferrous metal material. 3. The manufacturing method according to claim 7, wherein a number of grooves each having a substantially rectangular cross section are provided at a certain depth on the surface of the preform opposite to the wear-resistant surface. q. The manufacturing method according to claim 1, characterized in that the cross section of the raw material is dovetail-shaped. 3. The manufacturing method according to claim 4, wherein the metal material forming the main body is cast iron or the like.

Claims (1)

[Claims] l A method for manufacturing a machine part having a wear-resistant surface on one part, in which a preform is made of a wear-resistant material so that the wear-resistant surface appears on one side with metallicon. After the thickness is manufactured by a suitable means, a metal material is integrally formed with the preform by casting on the surface opposite to the wear-resistant surface of the preform to have a predetermined outer shape and dimensions. A method of manufacturing a mechanical part, characterized by forming a main body of the mechanical part made of a metal material. (Y) The wear-resistant material is a wear-resistant special steel, a metal material such as a sintered tungsten carbide alloy, or a non-metallic material such as a ceramic, and the metal material forming the body is aluminum, light alloy, bronze, etc. The manufacturing method according to claim 1, which is a non-ferrous metal material. 3. The manufacturing method according to claim 1, wherein a number of grooves each having a substantially rectangular cross section are provided at a certain depth on the surface opposite to the wear-resistant surface of the preform. A manufacturing method according to claim 1, characterized in that the cross section of the hospital bed is groove-shaped.Left A patent claim characterized in that the metal material forming the main body is cast iron or the like. The manufacturing method described in Clause G.