JP2002146042A - Sliding member for slipping slide and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding member for a self-lubricating slipping slide having a low frictional coefficient and excellent durability on repeated sliding. SOLUTION: The sliding member for a slipping slide is produced by forming a self-lubricating resin sliding member 6 on a base material by sliding a resin sliding material containing a solid lubricating agent and a thermosetting resin against the base material in a state where the resin sliding material is partially hardened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-lubricating sliding sliding member having a sliding surface provided with a resin sliding member and a method of manufacturing the sliding member.

[0002]

2. Description of the Related Art A sliding member for a sliding slide having a resin sliding member used for a machine tool or the like generally has a resin sliding member on a surface of a base material (metal, resin, etc.).
It is used for one or both substrates of sliding slides, and is an important part for performing high-precision work processing by sliding both substrates. The sliding member surface for the sliding slide is required to have characteristics such as mechanical strength, dimensional accuracy, and lubricity as sliding characteristics.

As the resin sliding material for forming the resin sliding member, thermosetting resins such as phenol resin, novolak resin, polyimide and epoxy resin are often used.

In some cases, a solid lubricant such as graphite, permolybdenum disulfide, or a fluororesin is added to the resin sliding material for the purpose of imparting self-lubricating properties to the resin sliding member.

A conventional sliding member for a sliding slide having a self-lubricating resin sliding member is obtained by molding a resin sliding material containing a thermosetting resin and a solid lubricant on the surface of a base material, and further performing a hardening treatment. Then, the resin sliding material was cured to form a resin sliding member.

[0006]

A resin sliding member used for a conventional sliding sliding member has a higher coefficient of thermal expansion than metals and the like often used for a base material. Therefore, in order to prevent a decrease in sliding accuracy such as expansion during high-speed sliding, it is desired that the resin sliding member be as thin as possible and uniformly provided on the substrate.

On the other hand, there is a method of increasing the concentration of the solid lubricant contained in the resin sliding member in order to improve the sliding characteristics of the sliding member for a sliding slide having the resin sliding member.

When the concentration of the solid lubricant in the resin sliding member is increased, the coefficient of friction decreases, but the viscosity of the resin sliding material increases during the manufacturing process, so that the resin sliding material has a certain thickness. In addition to causing a decrease in workability such as making it difficult to provide a uniform thickness on the base material, the mechanical strength of the cured resin sliding member also decreases, and the abrasion due to repeated sliding increases. there were.

PTFE and FEP are used as solid lubricants.
When a fluorine resin such as is added at a high concentration, the viscosity increases,
In addition to a decrease in mechanical strength, there is a problem that a peeling phenomenon occurs due to a decrease in adhesion between the substrate and the resin sliding member.

The present invention relates to a sliding member for a sliding slide, which has high workability, high sliding characteristics, a thin resin sliding member, and excellent adhesion between the resin sliding member and the substrate. It is an object of the present invention to provide a manufacturing method thereof.

[0011]

A sliding member for a sliding slide according to the present invention is provided with a resin sliding member on a sliding surface of a substrate, and the resin sliding member is composed of a thermosetting resin and a total of 30 weight parts. % By sliding the resin sliding material in a partially cured state containing the solid lubricant and the base material and transferring the resin sliding material to the base material. Is what you do.

[0012] The sliding member for a sliding slide according to the present invention is characterized in that the thermosetting resin is a cold-setting resin containing a main component and a curing agent.

[0013] The sliding member for a sliding slide according to the present invention is characterized in that the cold-setting resin is an epoxy resin.

The sliding member for a sliding slide according to the present invention is characterized in that the sliding member is at least one of opposing substrates of the sliding slide.

The sliding member for a sliding slide according to the present invention is characterized in that it has a self-lubricating property and is used without lubrication.

The method for manufacturing a sliding slide member according to the present invention comprises the steps of applying an uncured thermosetting resin containing less than 30% by weight of a solid lubricant to a first base material;
Transferring the shape of the slip surface of the second substrate to the thermosetting resin, and forming the thermosetting resin to which the shape has been transferred into a partially cured resin sliding material; A step of sliding the base material and the resin sliding material to transfer the resin sliding material onto the second base material to form a resin sliding material.

[0017] The method of manufacturing a sliding member for a sliding slide according to the present invention is characterized in that the thermosetting resin is a room temperature curable resin containing a main agent and a curing agent.

In the method of manufacturing a sliding member for a sliding slide according to the present invention, the cold-setting resin is an epoxy resin.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG.

In order to form the resin sliding member 6 on the second substrate 4 of the present invention, first, an uncured resin sliding material 2 is applied to the surface of the first substrate 1, The release agent 3 was thinly applied to the substrate 4. Next, the resin sliding material 2 was partially cured while the first substrate 1 and the second substrate 4 were in close contact with each other, and the shape of the slip surface of the second substrate 4 was faithfully transferred. A partially cured resin sliding material 5 was formed. Further, after separating the first base material 1 and the second base material 4 and removing the release agent 3 on the second base material 4, the first base material 1 and the second base material 4 are slid. Then, the resin sliding member 6 was formed on the second base member 4 to form the sliding member for a sliding slide of the present invention.

By providing a spacer between the first base material 1 and the slip surface of the second base material 4, the thickness of the resin sliding material 2 can be arbitrarily controlled.

The resin sliding member 6 of the present invention slides the partially cured resin sliding material 5 and the second base material 4 so that the partially cured resin sliding material 5 Since it is formed as a transfer film by being transferred onto the material 4 and hardened, if the resin sliding material 2 is molded and then almost completely cured after a lapse of time, it is preferable. The resin sliding member 6 which is a transfer film cannot be formed.

In FIG. 1, the second substrate 4 is used to form a partially cured resin sliding material 5 in which the shape of the slip surface of the second substrate 4 is faithfully transferred. But,
Another base material having the same slip surface shape as the second base material 4 may be used.

The resin sliding member 6 of the sliding member for sliding slide formed in this manner is strong because it is a transfer film formed on a molecular level, and is stable without being detached by subsequent sliding. Sliding characteristics can be maintained.

Further, the formation of the resin sliding member 6 of the sliding sliding member of the present invention is affected by the concentration ratio between the thermosetting resin of the resin sliding material and the solid lubricant. When the concentration of the solid lubricant in the entire resin sliding material is 30% by weight or more, the resin sliding member 6 of the present invention is not formed.

The thermosetting resin contained in the resin sliding material is:
Although a phenol resin, a novolak resin, a polyimide, an epoxy resin, or the like can be used, an epoxy resin is used in the most preferred embodiment of the present invention. When the epoxy resin is used, a curing accelerator such as a tertiary amine, phenol, an organic acid, or a curing catalyst may be used in addition to the main agent and the curing agent.

Hereinafter, a model of a sliding member for a sliding slide having the resin sliding member 6 of the present invention was prepared and evaluated.

(Evaluation of Sliding Member for Sliding Slide of the Present Invention) Room Temperature Curable Epoxy Resin Composition Main Agent: Bisphenol A Epoxy Resin Curing Agent; Modified Amine Curing Agent The solid lubricant has a PTFE concentration of 10% by weight of the whole. The PTFE powder and the base material were mixed as described above, and then a curing agent was added and mixed to prepare an uncured epoxy resin. An appropriate amount of the epoxy resin corresponding to the resin sliding material 2 in the uncured state is transferred to the S45C test piece base material (first base material 1) (50 m
m × 50 mm × 5 mm square), and a S45C sample molding jig (substrate having the same slip surface shape as the second substrate 4) (100 mm ×
(100 mm x 10 mm flat plate jig). The applied film thickness was controlled by providing a 1.5 mm thick spacer at the end of the epoxy resin between the two substrates with the uncured resin sliding material 2.

After that, the resin sliding material 5 was left at room temperature (25 ° C.) for 48 hours to be partially cured, and then a partially cured resin sliding material 5 formed on a test piece base material (first base material 1) was sampled. The resin sliding material 5 was removed from the molding jig (a substrate having the same slip surface shape as the second substrate 4), and a partially cured resin sliding material 5 was formed on the base material of the test piece.

At this time, a plurality of the same materials as the resin sliding material 5 in the partially cured state were further prepared and used for evaluation of the sliding member for a sliding slide. That is, these partially cured resin sliding materials were heated at 80 ° C. for 3 hours without sliding with the flat plate indenter to obtain a completely cured resin member for evaluation.

First, the resin sliding material 5 in the partially cured state is used.
Surface with diamond-like carbon coating
45C flat plate indenter (second base material 4) (10 mm × 10 m
m × 5 mm), and the resin sliding member 6 was formed on the flat plate indenter (the second base member 4), thereby producing a sliding member for sliding. The sliding conditions were a load of 9.8 N and a speed of 6 m / m.
In, the reciprocating movement distance was 40 mm and the number of times of sliding was 20,000 times (hereinafter referred to as 20,000 times repeated sliding).

Subsequently, after sliding the resin member for evaluation and the sliding member for sliding slide repeatedly 20,000 times,
The coefficient of friction was measured. Conditions for measuring the friction coefficient were a load of 9.8 N, a speed of 0.1 m / min, and a moving distance of 20 mm. The results are shown below. Static friction coefficient: 0.13 Dynamic friction coefficient: 0.07

As described above, the sliding member for a sliding slide having the resin sliding member 6 formed by using the partially cured resin sliding material 5 whose solid lubricant concentration is within the range of the present invention is sufficiently low. It was found to have frictional properties.

Comparative Example 1 Resin Sliding Material 2 in Uncured State
Resin sliding material 5 in a partially cured state was produced in the same manner as in the evaluation of the present invention, except that the PTFE concentration was changed to 30% by weight as a solid lubricant.

The surface of the partially cured resin sliding material 5 and the flat plate indenter (the second substrate 4) were repeatedly slid 20,000 times to produce a sliding member for a sliding slide. The friction coefficient of the sliding member for sliding slide manufactured in this manner after repeated sliding 20,000 times with the resin member for evaluation is shown below as in the evaluation of the present invention. Static friction coefficient: 0.17 Dynamic friction coefficient: 0.12

Since the solid lubricant concentration of the partially cured resin sliding material 5 is 30% or more, which is outside the scope of the present invention,
It was found that the resin sliding member 6, which is a good transfer film in the present invention, was not formed, and the coefficient of friction increased.

(Comparative Example 2) S45C flat plate indenter coated with diamond-like carbon (second base material 4)
(10 mm × 10 mm × 5 mm), a partially cured resin sliding material 5 having the same composition as in the evaluation of the present invention was provided in a thickness of 1.5 mm, and further heated at 80 ° C. for 3 hours for a completely cured sliding slide. A sliding member was produced.

The friction coefficient of the sliding member for sliding slide manufactured as described above and the resin member for evaluation similar to that of the present invention after repeated 20,000 times of sliding are shown below. Static friction coefficient: 0.38 Dynamic friction coefficient: 0.24

Even if the solid lubricant concentration of the resin sliding member of the sliding member for sliding slide is within the range of the present invention, the resin of the present invention formed by sliding the partially cured resin sliding member with the base material. It was found that the friction coefficient was significantly higher when the sliding member was not used.

Evaluation resin members used for evaluation of the invention, evaluation of sliding members for sliding slides in Comparative Examples 1 and 2,
The resin sliding member of the sliding member for sliding slide used in Comparative Example 2 is equivalent to the resin sliding member manufactured by the conventional method. That is, the resin sliding member of the present invention has a low coefficient of friction and is very thin as compared with the conventional resin sliding member. I understand.

Further, although not described in the embodiment of the present invention, the surface of the partially cured resin sliding material used in forming the resin sliding member of the present invention is also the resin sliding material of the present invention. It is considered that the surface state is similar to that of the moving member. Therefore, when the sliding member for the sliding slide does not require strict sliding accuracy as in the case of the conventional resin sliding member, the partially cured state of the sliding member that slides on the base material in the partially cured state described in the present invention. Even if the dynamic resin material 5 is used as a resin sliding member, a sliding member for a sliding slide having a lower coefficient of friction than before can be obtained.

[0042]

As described above, by using the self-lubricating resin sliding material of the present invention, the workability is good even if the film thickness of the resin sliding material is small, the friction coefficient is low, and the sliding is repeated. A highly durable sliding member for a sliding slide having excellent dynamic properties and good adhesion between the resin sliding material and the substrate was obtained.

FIG. 1 used to explain the present invention
In the base material of the sliding member for sliding slide is shown as a plane, but naturally having unevenness, or may be a member that slides by fitting both of the sliding slide member, especially According to the present invention, even when the surface shape of the base material is complicated and molding by conventional methods is difficult, the resin sliding member can be formed by transferring the resin sliding material. Can be easily manufactured.

Further, the sliding member for a slide slide of the present invention is used for one of the substrates of the slide slide, and the other substrate is
Any sliding base material such as resin or metal may be used.

Further, as described above, when the sliding slide is formed with the surface of the resin member formed on the first base material 1 as the transfer source as the sliding surface, the sliding base material of the present invention is naturally used as the opposing base material. You may combine with the resin sliding member 6 of the 2nd base material 4.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a method for manufacturing a slide according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 first base material 2 uncured resin sliding material 3 release agent 4 second base material 5 partially cured resin sliding material 6 resin sliding member

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3J011 KA07 QA05 SC01 SC02 SC14 SC20 SE04 4F071 AA03 AA27 AA42 AE11 EA05 4J002 AA011 BD12 BD152 CC031 CD001 CD051 CM041 EN006 FD146 GM05

Claims (8)

[Claims] 1. A sliding member for a sliding slide in which a resin sliding member is provided on a sliding surface of a substrate, wherein the resin sliding member comprises a thermosetting resin and a solid lubricant of less than 30% by weight of the whole. A sliding member for a sliding slide, wherein the sliding member is formed by transferring the resin sliding material to a substrate by sliding the resin sliding material in a partially cured state and the substrate. 2. The sliding member for a sliding slide according to claim 1, wherein the thermosetting resin is a cold-setting resin containing a main agent and a curing agent. 3. The sliding member for a sliding slide according to claim 2, wherein the cold-setting resin is an epoxy resin. 4. The sliding member for a slide slide according to claim 1, wherein the slide member for a slide slide is at least one of opposing substrates of the slide slide. 5. The sliding member according to claim 1, wherein the sliding member has a self-lubricating property and is used without lubrication. 6. A step of applying an uncured thermosetting resin containing less than 30% by weight of a solid lubricant to the first substrate, and applying the second substrate to the thermosetting resin. Transferring the shape of the slip surface, converting the thermosetting resin having the transferred shape into a partially cured resin sliding material, and sliding the second base material and the resin sliding material. Moving the resin sliding material onto the second base material to form a resin sliding member, thereby producing a sliding member for a sliding slide. 7. The method for manufacturing a sliding member for a sliding slide according to claim 6, wherein the thermosetting resin is a cold-setting resin containing a main agent and a curing agent. 8. The method for manufacturing a sliding member for a sliding slide according to claim 7, wherein the cold-setting resin is an epoxy resin.