JP2708139B2 - Sliding material and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding material widely used in automobiles, ships, industrial machines and the like, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as a method for producing a sliding material of a Pb alloy or a Sn alloy, a molten metal of a Pb alloy or a Sn alloy is poured into a support material, and the molten material is directly cooled from the back surface of the support material with water or the like. A method of cooling while rotating was used.

[0003]

SUMMARY OF THE INVENTION Conventional manufacturing methods include:
There are the following problems. When the support material is thin, distortion occurs due to the molten metal and cooling, and it is difficult to produce a wide material. Further, it is necessary to cut the alloy to obtain the required dimensions. When the supporting material is thick, it is necessary to cool while rotating to prevent segregation of the alloy and to ensure sufficient adhesion. This method is time consuming and expensive. Since the alloy is a molten metal, the material of the support material is limited,
Moreover, since chloride is used to remove oxides from the support material, equipment for this is required. An object of the present invention is to provide a method for manufacturing a sliding material that solves the problems of the prior art.

[0004]

In order to achieve the object of the present onset to achieve the above purpose
Akira's method is to produce Sn-based bearing alloy sliding materials.
There are, (a) the steps of the Sn-based alloy to alloy plate, without performing (b) heat treatment, the steel sheet of the Sn-based alloy plate
Is pressed directly to the Sn-based alloy layer and joined to the Sn-based alloy layer.
A method of making a sliding material composed of a steel plate layer, heat treating at 125-225 ° C. (c) a sliding material
And characterized in that: In the present invention, a Sn-based alloy
Before directly pressing the plate against the steel plate, the Sn-based alloy plate is degreased.
Brush treatment and degrease and sand belt the steel plate
Is preferred. The sliding material of the present invention does not require conscious cooling or mechanical treatment of the press-contact surface such as a support material by directly pressing the Sn-based alloy against the steel plate. Can be eliminated. In addition, the thickness of the alloy can be selected according to the amount of change in the support material, the necessity of cutting the alloy is minimized, and a sliding material having an arbitrary size can be obtained.

[0005]

The present invention will be described below in detail with reference to examples. Example 1 (Comparative Example) First, a comparative example was manufactured based on the prior art. That is, a strip steel to be a support layer (1.10 mm thick × 110 mm wide)
After degreasing, the adhesive surface was treated with a sand belt, pickled and treated with chloride-based flux, and then immersion-plated in a molten Sn bath. Further, the molten Sn alloy shown in Table 1 was poured onto the immersion-plated steel strip, and water cooling was performed from the back of the steel strip. Thereafter, the excessively cast Sn alloy was cut, and the test No. having a total thickness of 1.65 mm and a thickness of the support layer of 1.30 mm was cut. 1 (conventional product) was obtained as a comparative example. Example 2 A sliding material was produced according to the method of the present invention. That is, 18m
An alloy shown in Table 1 having a thickness of m was cast and cast. The alloy was rolled to a thickness of 1.10 mm through a rolling roll, cut into a width of 110 mm, degreased, and brushed to obtain an alloy plate.
Next, a supporting material of Fe-0.05C (thickness 2.24 mm)
X 110 mm width) is degreased, treated with a sand belt, and then pressed through a rolling roll to press the alloy plate and support material and slide them.
Moving material was obtained. The total thickness of the sliding material was 1.65 mm, and the thickness of the support layer was 1.30 mm. Next, as shown in FIG. 1 the sliding member of this
And no line heat treatment at each temperature shown in FIG. 2, the
Inventive sample 2 was obtained. Fig. 1 shows the mechanical properties of each sample.
2 and FIG. 2, the adhesive strength is shown in FIG. 6, and the microstructure photographs are shown in FIG. 3, FIG. 4 and FIG. (The alloy hardness is measured at room temperature after the heat treatment.) In the embodiment of the present invention, the casting is performed by cast-in-place casting. However, the invention is not limited to this, and the casting can be performed by another continuous casting. Further, the product of the present invention can be machined as necessary and further processed into a circular or semicircular shape and used.

[0006]

The sliding material of the present invention has the following effects. (1) Since a material is not thermally strained, a wider material from a thin material to a thick material can be obtained. (2) Since the surface of the material is smooth, there is no need for cutting or the like. (3) As is clear from the figure, the mechanical properties can be changed by the heat treatment, so that the temperature can be arbitrarily changed according to the application. (4) Since the casting structure can be destroyed by rolling,
A uniform structure can be formed, and there is no uneven component unevenness due to cooling as compared with the conventional method of pouring a molten metal directly into a supporting material. (5) Since no chloride is used, the equipment is not required, the working environment is improved, and the whole can be made less expensive than before.

[0007]

[Table 1]

[0008]

[Brief description of the drawings]

FIG. 1 is a graph showing alloy hardness.

FIG. 2 is a graph showing tensile strength.

FIG. 3 shows a micrograph of a conventional product.

FIG. 4 shows a microstructure photograph of the product of the present invention.

FIG. 5 shows a microstructure photograph of the product of the present invention having an intermediate layer.

FIG. 6 is a graph showing the adhesive strength between a support material and an alloy plate.

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-178385 (JP, A) JP-B No. 54-23667 (JP, B2) "Bearing and Lubrication Handbook" June 30, 1961 Nikkan Kogyo Shimbun Pp. 372-403

Claims (2)

(57) [Claims] 1. A method for producing a Sn-based bearing alloy sliding material.
(A) turning the Sn-based alloy into an alloy plate ; and (b) converting the Sn-based alloy plate to a steel plate without performing heat treatment.
Is pressed directly to the Sn-based alloy layer and joined to the Sn-based alloy layer.
A method of making a sliding material composed of a steel plate layer, heat treating at 125-225 ° C. (c) a sliding material
A method for producing a Sn-based bearing alloy sliding material, comprising: 2. Prior to directly pressing an Sn-based alloy plate against a steel plate
Then, the Sn-based alloy plate is degreased and brushed, and the steel plate is
2. The method of claim 1, further comprising the steps of degrease and sand belt.
A method for producing a Sn-based bearing alloy sliding material .