WO2002099019A1

WO2002099019A1 - Dry coating lubricant, sliding member coated with dry coating lubricant and sliding member pattern-printed with dry coating lubricant

Info

Publication number: WO2002099019A1
Application number: PCT/JP2002/003887
Authority: WO
Inventors: Sinji Kato; Kuroudo Maeda; Kouitsu Itoh
Original assignee: Toyota Jidosha Kabushiki Kaisha; Dow Corning Asia Limited
Priority date: 2001-06-01
Filing date: 2002-04-18
Publication date: 2002-12-12

Abstract

At least one kind of coating modifier selected from polyamidimide resin, epoxysilane and epoxy resin, and at least one kind of hard particles selected from silicon nitride and alumina are impregnated into a dry coating lubricant. The coating layer of a dry coating lubricant is formed on the sliding surface of the base material of a sliding member, with the surface roughness of this coating layer set to up to 3 μmRz in a ten point height of irregularities. The coating layer of a dry coating lubricant is formed on the sliding surface of the base material of a sliding member, the coating layer being formed in a film thickness of at least 10 μm on at least part of the sliding surface of the base material.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention covers the surface of a sliding member and has a resistance to the sliding member. The present invention relates to a dry inflatable lubricating agent for improving lubrication and a coefficient of friction, a sliding member formed with a film of a dry inflatable F lubricant, and a sliding member having a high friction coefficient.漏 Leakage *, to improve the durability and friction coefficient of the sliding member by coating the surface of the sliding member, a coating made of a resin binder, hard particles, and a hearing lubricant These are disclosed in, for example, Kaihei 10-37962, JP-A-11-253553, JP-A-4-83914, JP-A-7-247493, JP-A-7-37517, and JP-A-6-279708. In these, the sliding member of interest relates to an aluminum alloy bearing.

If the coating containing the above lubricant is formed on the member with one coat, sufficient adhesion may not be obtained.Therefore, depending on the machine, a primer for ensuring close contact should be coated beforehand. The two-coat type, in which a coating containing a lubricant is coated thereon, is the most common method, but there are problems with the iiStl and cost of the coating process.

Aluminum alloys and magnesium alloys used as the base material have poor sliding characteristics and have a large friction coefficient due to galling and seizure under severe operating conditions. Therefore, nickel plating and tin plating are required. It has been applied to the surface of the village, and to the surface of Rindo-Dani '* Tree B, it is coated with a dry inflatable lubricant containing a hardening agent. The subject was entitled.

In addition, composite plating in which a solid lubricant is dispersed to prevent galling and seizure of components is effective, but has a large friction coefficient and is expensive. Therefore, it is difficult to apply it to aluminum alloy. You.

«Materials prepared by blending a nucleating resin with a nucleating resin have the disadvantage that the« tt is low and easy to peel off; There was a machine that assumed a configuration that assumed peeling.

The present invention has been made in view of the above-mentioned circumstances, and it is intended to obtain a lubricating resistance and a lubricating property comparable to those of a metal, even though it is a dry inflatable lubricant. Obtain excellent fifi regardless of whether the base material for forming the film of the dry swellable lubricant is iron, aluminum alloy, or magnesium alloy. It improves the finish of the surface of the dry lubricating lubricant film, obtains the anti-friction coefficient of the member, and suppresses the hardness of the mating material even if it is a film with hard particles wet. To do. Dry Skin swelling ί Bone QI It is important to ensure that the thick film is covered with IJ and to ensure durability. By forming a coating only on the upper limit surface and TO, it reduces the interfacial page area, lowers the coefficient of friction, and reduces the amount of dry lubricant used. The aim is to reduce the processing cost by reducing the amount, and to make it applicable to a wide range of applications, such as pistons, piston rings, shims, clutches, etc. DISCLOSURE OF THE INVENTION The dry inflatable lubricant of the present invention has a polyamideimide resin, at least one kind of epoxy selected from epoxysilane and epoxy resin, and at least one kind of hardener selected from nitridation and alumina. And ffl As a modifier, a polyester / silicone resin may be used in combination. Also, tna HM is preferably epoxy silane.

The dry lubricating lubricant of the present invention preferably contains at least one kind of fixed bone agent selected from polytetrafluoroethylene, molybdenum disulfide, and graphite.

The sliding member of the present invention comprises a base material and a land covered with the dry expandable lubricant according to any one of claims 1 to 3 on the sliding surface of the base material. Omoto fi It is assumed that the average roughness of the ten points is below 3 mRz: J [.

The surface roughness of the sliding surface of the tiff base material is preferably not more than 8 mRz in ten-point average roughness.

It is preferable that the sliding surface of the Ml base material is subjected to ^ M treading or alkali degreasing under ultrasonic waves, and / or sharp irregularities are formed by war blasting, shot blasting, or the like.

The self-coating may have a configuration in which two or three layers of different self-drying swelling lubricants are used, and the characteristics [4] in each layer are TO.

The sliding member of the present invention has a base material, and a subject on which a sliding surface of the base material is coated with a dry inflatable lubricant of iBil. It is assumed that at least one of the f-motion surfaces of the base material is formed of a thick film of 10 mmi.

Further, it is preferable that the TO is formed by pattern printing, and that at least “^” of the sliding surface of the base material be formed of a thick film of 15 μmJiLt in a strip shape in a cooling oil cooling direction.

The knitting is formed by screen printing. In the screen printing, the eyes of the screen are set to # 1 2 [The squeegee's daughter degree is straight or vertical! ^], And the work feed is 25 rpm or less. It is preferable that the above conditions are satisfied.

ΙΠΒίThe driving member is preferably selected from a piston, a shim, and a clutch.

The dry inflatable lubricant of the present invention can be widely applied to various uses including lubrication of pistons, piston rings, shims, clutches and the like, and non-leap sliding. It is a useful material that can be applied. Further, the sliding member on which the coating is formed is excellent in heat resistance, has a low coefficient of friction, and is useful as a sliding member. Brief Description of Awakening FIG. 1 shows an embodiment in which the coating of the dry enema leap lubricant of the embodiment is applied to the skirt portion of the biston.

Fig. 2 shows a thick film with one coat by screen printing of 11 of the dry swelling lubricant of the example. FIG. 4 is an explanatory view for explaining a print coating method for obtaining the following.

FIG. 3 is an explanatory view of another example for explaining a print coating method for obtaining a thick film by one coat of the coating layer of the dry inflatable lubricant of the embodiment by screen printing.

FIG. 4 is an explanatory view of another example for explaining a printing coating method for obtaining a thick film with one coat of the coating layer of the dry inflatable lubricant of the embodiment by screen printing.

FIG. 5 is a graph showing the smoothness of the dry swellable lubricant of the example when the film was thickened by screen printing. BEST MODE FOR CARRYING OUT THE INVENTION The dry inflatable lubricating agent of the present invention is a polyamideimide having thermally stable "« T «" [4, Including resin, hard stiffener and MB curve ij The dry skin expansion swelling IJ may be combined with a hardening agent and a polyester / modified silicone resin as required. The member on which the coating of the dry E-lubricant is formed can be used as a rocking member having excellent properties, high heat resistance and m coefficient.

The dry lubricating lubricant of the present invention contains a polyamideimide resin as a component and contains polyamide polyamide resin and hard particles.

As the forming resin for the dry film, use i «tt, a polyamidimide If fat of 么 ^ α which is difficult to adhere to. As the polyamideimide resin, a commercially available resin used for coating a base material can be used.

Here, the term “compound ij” refers to the characteristics of an M film composed of hard particles, a solid lubricant, and a resin binder, and particularly of a dry rising leap lubricant that improves the characteristics of the polyamideimide resin that is the resin binder. It refers to a product that improves the physical properties.

As the third item, an epoxy transcript and an epoxy silane can be used alone or in combination of two types, but it is more preferable to use an epoxy silane. Further, a polyester / modified silicone resin may be used in combination.

The man content of the epoxy resin is in the range of 0.5 to 10 parts per 100 parts of the polyamideimide resin. It is preferable to improve the adhesion. If the amount is less than 0.5 part, cheomachus is not recognized, so it is not childish. On the other hand, if it exceeds 10 parts, the resistance to adhesion and the adhesion will be reduced, so it is not suitable.

The epoxy resin has good compatibility with the liquid tire polyamide-imide resin. For this reason, epoxy resin is used as a difficulty: ^ is easy to fit into the aluminum surface and helps the »property of the polyamideimide resin, and by reaction with the polyamideimide resin (the ffi ^ reaction of the polyamideimide resin itself), It can improve the resistance.

Epoxy silane is solid # ^ f smooth and! ! The dispersion of the polyamideimide resin of the porous particles can be improved. In other words, epoxysilane is in a liquid state and has an inorganic structure, has an affinity for a solid such as alumina, and has. For this reason, epoxysilane is used as the coating MB statement ij: ^ improves the polyamide imidity and the dispersibility of β solids. Epoxy silane is also eho. Notes are also improved due to the presence of xy groups.

The amount of epoxysilane is preferably 0.5 to 5 parts per 100 parts of polyamideimide. If the amount is less than 0.5 parts, ^ »11 results will not be obtained. If the amount of excitation U exceeds 5 # «part, the effect will not be obtained, so it is not childish.

Polyester Injection Silicone resin, it is preferable to use ITN in 1 to 12 rods per 100 parts of polyamideimide Sf resin. This Polyester / Le Change [4silico

When the ί- 旨 is used as a high-quality material, the surface roughness of the coating surface tt rises can be reduced, and a dry swelling “smooth iJ with a friction coefficient can be obtained. Polyester-modified silicone resin In particular, there is a dynamic U agent that improves the surface finish of spray-coated products and obtains a friction coefficient. It has low compatibility with polyamideimide resin and does not react with polyamideimide resin. However, it has the effect of forming a thin silicone film on the surface of the polyamide resin during image formation, improving the leveling property of H by the property of lowering the inherent characteristics of silicone, and the effect of smoothing. It is not preferable to use other phenolic if-fat or melamine resin because the effect of polyester / le-modified silicone resin cannot be obtained. Phenolic resin, melamine resin It is considered that the reason why there is no effect is that there is no compatibility with the polyamidimide resin and there is no reaction with the polyamidimide resin, and therefore, there is contamination as a foreign substance in the resin binder.

As the hard particles, it is preferable to use Mohs-9 alumina nitrided from the viewpoint of the balance between the heat resistance and the counterpart material. Of hard particles! ^, But higher V, the other party «becomes larger, and hardness is low, and conversely,)« propensity ± ¾? The result is insufficient, which is not preferable. Nitriding (Si ₃ N ₄ ) or alumina (Al ₂ 〇 ₃ ) may be used in combination with Manmushi or 2.

The hard particles have an average particle diameter in the range of 0.1 to 5 m, preferably 2 m or less. It is not preferable that the diameter of the truss is less than 0.1 μm, since this will reduce the resistance and adhesion. On the other hand, if the particle diameter is larger than 5 μm, it is not good because the other material becomes larger. In order to maintain the heat resistance and suppress the mating of the mating material, not only the average particle size of the hard particles must be fine, but also the distribution must be sharp. I'm not a child.

The dynamic H amount of the hard particles is 1 to 15 # parts, preferably 5 to 1 o # a parts, based on 100 parts of the polyamideimide resin. In particular, it is more preferable to set 2 parts for friction coefficient and 6 to 9 # parts for »T) W note.

As for the likelihood of hard particles, spherical ones that are formed by fuel concentration have the lowest opposing ft, and are most desirable. Next, it is preferable that the fiber is broken by occupation.

A solid lubricant may be further added to the dry swelling lubricant of the present invention.

Polytetramethylene Full O b ethylene as the solid lubricant (PT FE), molybdenum disulfide (M o S _2), it can be used观虫or in combination such as graphite, in particular, polytetramethylene full O b Ethylene It is preferable to use those prepared by a manufacturing method such as pulverization or the like, and milk or tfi.

The amount of 閏 m of the hard leap lubricant is ι ~ ι to 100 parts of polyamideimide resin.

The use of 2 parts, preferably 1 to 6 parts, is recommended.

The value of ¾¾W of the solid lubricant used as a sliding member to be tested under lubrication should be as small as possible in order to reduce J¾ resistance and increase the coefficient of friction, with the upper limit being 12 parts. Is preferred. On the other hand, in continuous sliding, the lower limit is preferably set to 1 medulla in order to improve the wear resistance and reduce the friction coefficient.

It is preferable that the fine particles have an average particle diameter of 5 Mm or less, since the effect is small and the effect is small.

The coating of the dry inflatable lubricating lubricant of the present invention can be widely applied to members for various uses such as pistons, piston rings, shims, clutches and the like under lubrication. There is no particular limitation on the base material for coating the dry film lubricant, and it can be widely applied.

The sliding member of the present invention is a member in which a coating layer is formed by coating the above-mentioned dry swellable lubricant on the base metal sliding surface, and the surface obstruction of the coating layer is 10 points and the roughness is 3 points. It is a member that is not more than mRz. This sliding member has a ten-point average roughness of 3〃mRζ or less in terms of the surface roughness of the sliding surface to be slid. Show.

As the base metal, a surface roughness of 8 mRz: Π¾ degree with a surface roughness of 10 points i ような, which is commonly used, can be used, and the working surface of the base material has a 10 point average roughness. A surface finished at 3 Rz or less can be used, or the sliding surface of the base material is mirror-finished and the ten-point average roughness is set to a table ffiffi of 0.5 to 1.5 mR z¾¾. Can also be used. In addition, assuming that the object is peeled off or worn out during use: ^, a sliding surface of the base material may be provided on the sliding surface of the base material to prevent the sliding member and the mating material from being dragged or seized.

The surface of the sliding surface has a ten-point average roughness of 8 mRz or more! ¾S used ^, Provide fiber on the sliding surface of the base material: ^ 1 C coated! By forming a skin of up to 50 m, the surface of the object can be smoothed, and a skin orchid with a surface roughness of 3 mRz or less in ten-point average roughness can be obtained.

The surface of the base material 十 10 points, flat; finished with less than 3 mR ％ in% roughness ^ Use a mirror-finished sliding surface of the t material: ^ ^ Even if it is thin, even if it has a swelling of, for example, 5 to 3 Om¾K, the surface S of the object can be reduced to ten points and the average roughness can be made 3 mRz or less. The procedure for coating the base material with the dry expandable lubricant is to finish the sliding surface of the base material to 10 points, flat: ¾ roughness 3 mRz or less:! If ^ is taken as an example, the sliding surface of the base material is finished to 3 mRz or less with a ten-point average roughness by, for example, ordinary processing such as polishing or m-shape. Next, while applying ultrasonic waves, Nada IJ thighs, alkaline thighs! After testing the oil content on the coated surface with ^, it was 60-80. Put the base material on C and return it to a height of 5 to 30 m by air spraying or screen printing. After pre-drying and leveling, 180 ° CX 90 For 2 minutes at 200 ° C. for 20 minutes. Then, without the rear tni, the surface of the film can be blocked

The following sliding member is obtained.

Surface roughness of the sliding surface of the base material to use those 8 m R _Z than 1¾S a ten-point average roughness, using the same dry the膨閬lubricants and ± t, re 1 0 during coating Apply a dry intumescent lubricant to a thickness of ~ 50〃m! ^ Μ Ma, according to the procedure described in the page, perform coating to reduce the surface roughness of the coating without post-processing. A sliding member having a point average roughness of 3 mR or less can be obtained.

iW ^ cows are not limited to knitting, and the lower the temperature, the longer the treatment, and the higher the temperature, the shorter the time.

Iff's own male is a cat, while applying ultrasound, de-alcoholizing with alkali, and performing Ji static treatment.She can form a new surface with sharp irregularities of about 3 by using Warburst Lord, Shot Blast β, etc. The inter-arm lubricating agent can have a high level of strength similar to that of the metal.

When applying the dry inflatable lubricating lubricant of the present invention to the sliding surface, the dry inflatable lubricating agent can be coated on the entire surface of the sliding surface or can be coated on the surface of the moving surface.

In the case of coating a dry film on the entire sliding surface, man-hours in the coating process can be reduced. In addition, "^ is coated: ^ can be reduced to the minimum required cost by coating it to the minimum necessary, The friction coefficient can be reduced because the swinging surface of the lubricating oil becomes smaller, and the lubricating oil has the advantage of improving the "" ^ and the i of the lubricating oil. Print pattern at around 0 m By coating, a low-cost sliding can be obtained because of the friction coefficient that reduces fluid friction.

In the dry lubricant of the present invention, two or three layers of different dry inflatable lubricants may be coated on the moving member within the iS range of each of the above-mentioned materials.

For example, a first layer containing a large amount of hard particles (JM resistance) may be formed on the base material side, and a second layer (a conformable layer) containing a small amount of hard particles may be provided on the upper surface of the first layer.

In addition, a first layer containing a large amount of hard particles and solid agent is formed on the base material side. »)« Ϋ), and then a second layer containing a small amount of hard particles (a conformable layer) is formed on the upper surface of the first layer. May be provided.

Furthermore, a first layer (J «Ji resistance) containing a large amount of hard particles is formed on the base material side, and then the first layer is formed.

On the upper surface of one layer, a second layer containing many lubricants and a small amount of hard particles (a layer for non-F sliding and seizing) may be provided.

The base material to be coated with the dry lubricating lubricant of the present invention is not particularly limited, but it is preferable to use iron, steel, various aluminum alloys, magnesium alloys, titanium alloys and the like.

Even if an alloy containing hard crystallized materials and an aluminum alloy or magnesium alloy reinforced with hard components (hard particles, hard fibres) are used as a base material in order to assure resistance to 14 In the dry swellable lubricating lubricant of the present invention, 'the amount of hard particles i¾¾t »n' can be selected to be flexible.

To obtain a thick film with a screen print coat | 1Besides, it depends on the printing agent and printing conditions, but the formation of a thick film is an unusual area. Obtaining a thick film under normal conditions is limited to that of printing agents.

However, in the case of the dry swellable lubricant of the present invention, a single screen print coat can be used to form a thick film by employing the following method. For example,

(1) The screen is roughened (# 120), the rubber squeegee is protruded 5 to 30 thighs from the fixing jig, and the «| 确 angle with the screen is vertical or tilted 35 to 70 ° from the vertical to work. Print ¾K slowly at 5 rpm.

(2) Make the screen coarse (# 80), make the squeegee protrude from the fixing jig, and make the angle with the screen vertical or 35 to 70 ° from the vertical to make the work Send ¾S to 1 5 r ρπι and J: 的And so on.

The squeegee can be made of rubber as shown in (1), or it can be made of that material, for example, urethane made of 30-100! A material having JK can also be used.

Further, as the squeegee, one having a flat insect surface with the screen may be used, or one having a sword shape may be used.

Under conditions such as (1), the work is fed three times more efficiently than (2), but a thick film of 15 mmi can be formed.

Under conditions such as (2), it is possible to form a thick film of 10 imm_h while improving the efficiency of i, because the work feed ¾K is 3 咅 faster than Jt compared to (1). .

The value of the dry intumescent lubricant can be obtained by appropriately selecting the set of these conditions ^ :.

Example>

Hereinafter, specific examples will be described.

Marauding formation)

In each of the compositions of Examples 1 to 15 and Comparative Examples 1 to 17 shown in Table 1, hard particles, soft particles, and m were added to the メチル -methylpyrrolidone solution in which 15% of the polyamideimide resin was dissolved. The L solids were mixed with each other by mixing the respective volume parts in the polyamide imide. Next, the mixture was mixed with a ball mill or a three-roll mill to obtain each of the dry swellable lubricants that had been made uniform in the wN-methylpyrrolidone solution. The coating method of the dry lubricating lubricant was determined to be excellent in coating β property by selecting Mffl-Synthetic IJ and selecting ffβ for viscosity according to the coating conditions. For coating “^ 1”, the coating nr surface was previously sprayed onto an aluminum alloy test piece that had been alkali-coated or machine-coated by air spraying so as to have a mto of 3 m. After preservation at 0 ° C. for 10 minutes, baking and curing were performed at 180 ° C. for 90 minutes to obtain films of Examples and Comparative Examples. 【table 1】

Aluminum> AC8P-T6 26.4 0.067

Silane A: Ferglycidopropyl trimethoxysilane (epoxysilane) Silane B: Fermethacryloxyaropi / Retrimethoxysilane

Silane C: Ethyl silicate

Epoxy resin: Epicoat 828

? PTFE: average particle size 4 m (—next particle size 0.2 to 0.2〃m)

BN: 0.8 particle size

Pass: ；; no damage. 〇; Pinhole-shaped small damage is slightly ¾.

Fail: Δ; small image. X: Planar peeling.

(1) Morihiro: Using the LFW1JM test, the test applied the coated film of the example to the test block side. The mating test ring material used is A 390 · T 6 and flaked black iron F C230 polished product. In Tests (1) and (2), the cage depth of the coating on the test block was measured and compared. ft The rotation speed: 160 rpm, difficulty: 15 kg, lubricating oil: SAE 5W30 base oil, omission time: 30 minutes, starting at room temperature and thereafter.

(2) Friction test: Rubbing «test occlusion, using lower case 30 試 flat plate test ^ il ^ ^ 例被比比比比 A A A A A A A A には A A 390 · Τ6 and flaky HJ Tetetsu FC 230 using t-friction ft test. The test was: rotation speed; 20-1 OOOrpm, haze; 50 kg—constant, lubricating oil; 5 W30 base oil, test time: 40 minutes, extinct; For the coefficient of friction, the average value at each rotation speed was calculated, and then the average value of all the rotation speeds was calculated.

(3) Density test: The ^^, which was made of aluminum alloy to form the towels of the example and the feathers of the comparative example, was pre-wet for 60 minutes. Next, this test was applied to a cylindrical test using a pressure-sensitive adhesion test machine, and a vertical oil jet was applied to the sample while rotating it while moving it at a constant angle. The whole surface was touched. In the test, the presence or absence of peeling of the film surface was visually examined, and the presence or absence of chicks and ¾κ were compared to the old values. The test was hydraulic pressure: 2000kg / cm ² , room temperature. The magnitude of the damage was represented by the following symbol. Small (excellent): ◎ <〇 Δ <Χ: large (poor) (4) Surface roughness: Measured with a normal surface roughness meter. Evaluated in terms of roughness mRz. As shown in Table 1, in each of the examples, the hardness was improved by blending the hard particles and] M, and the ratio was smaller than that in each case.

In particular, nitriding hard particles, epoxy resin and eho. Example 7 in which xysilane was blended, Example 10 in which an epoxy resin and a modified silicone resin were blended in a hard f-stick, and Example 10 in which an epoxy resin and a modified silicone resin were blended in a hard particle, and alumina and epoxy resin and an epoxy silane were blended in a coating. In Example 14, the depth was shallow, the coefficient of friction under lubrication was low, and the adhesion ft under a thick film was good. Further, Examples 6 and 13 in which PTFE was added to the solid lubricant were similarly good.

Examples 2 and 8 show the upper limit of the amount of MS exchange: ^, Examples 11 and 12 show the lower limit of the amount of sentence; ^, and Example 15 shows the upper limit of the amount of U Thus, it can be seen that Examples 9 and 11 are lower than the lower limit of the particle size and are both shelves. Examples 9 and 10 in which the modified polyester silicone resin was blended also showed that J JM was small and the coefficient of friction was low and Δ was obtained. Actual method in which the particle size of alumina of hard particles was changed. Examples 1, 3, 4, 7, 13, 14, and 15 also showed small effects; ing. Further, Examples 1, 4, 6, and 13 in which the lubricant PTF E was blended also showed glare.

On the other hand, when the results of Comparative Examples 1 to 3 were not applied and the solid fibrous bones were combined with the cock, the friction increased. The ratio of 4 to 7 specified by the present invention] mixed with the resin is also large, indicating that J 、 fi is large and the «'note is poor, and the Me profile of the present invention is であI understand. The compound with a hardener # ^ lubricant J ^ with a specific ratio of 8 to 10 is large and has a large coefficient of friction. Increasing the blending ratio of epoxy resin with a ratio of l l 1 to 16 # ¾% increases «4 and reduces adhesion. j When only the hard particles of image 1 and 2 are not blended with the other energizing agent, the adhesion is large and the injection is poor. Comparative examples 13 and 14 are blended with the modified silicone resin specified in the present invention. The number is also large. The ratios l 5 and 16 are: #M only with solid lubricant and polyamideimide resin, and the friction coefficient increases. The comparison 17 is made of iron on the base metal, and the customization such as sticking 14 is a little worrisome, but it requires more man-hours and increases the cost as compared with the dry coated lubricant. The bottom row of Table 1 shows the measured values of the base material without a coating. The ratio of U to Nada, which is a hard leap lubricant alone, is U5,16, which makes the base polyamideimide resistant to 注 [Bunzen and ί.

求 of cryogenic alumina improves the resistance.

Alumina hard-based particles, sinU ^ Bok of soft particles (Si_〇 _2, ZnS, CaF ₂₎ a combination of Personal Protection for First Aid or Rescue Personnel & was U]:匕觀1, 2, 3, of ^ is, J «depth '10 miLb becomes resistant Do not improve the note. In addition, a combination of J-paints 8, 9, and 10 with a solid lubricating IJ (BN (SP-2), polyethylene, silica gel) was also used: ^ also did not improve the heat resistance. Also, the ti (Jt 6, 7) of M¾¾ [J melamine iTJi purse and Phenol / Le tree 3 purse does not improve the cohesive injection and heat resistance.

In addition, as shown in J4, 5, 13, and 14, the use of an epoxy resin or epoxysilane resin: similar to W in the MH layer does not improve the Wfe fiber resistance.

Therefore, it can be seen that by selecting hard particles and improving the coating strength of the dry enema lubricant, the) resistance can be improved. ΜΞ 文 ¾ and! ! Promotion of mass particles [f] If the amount is too large, it will have a negative effect, so these quantities will have some value.

Hard particles are hard particles that are hard enough to provide high heat resistance and can be held firmly on the coating. The particle size and amount do not decrease the strength of the coating. It can be seen that the diameter is

(Adhesive note)

In the coating of the dry intumescent lubricant, there is a loss of water in the interface between the coating of the dry intumescent lubricant and the base material due to the lack of the Ne film and the hygroscopicity of the polyamideimide. The adhesion between the coating of the dry intumescent lubricant and the base material may be impaired. Therefore, in the evaluation of the examples and ratios »J, we evaluated Wtt after one hour of» ri in advance. In addition, if the Jil of the coating increases as the resin coating increases, the rigidity of the coating increases.

A boat that is bigger than W1 Pama. Therefore, in the evaluation of the examples, evaluation was performed at a film thickness of 20 / m.

The total amount of the hard particles is 直 H, and up to a certain amount of 粒子 can be improved by »of defects in the coating and by a difficult decrease in stiffness of the coating. . Similarly, if the amount of U is too small, sufficient adhesion cannot be obtained.

In Wtt, the pre-treatment of the base material is greatly increased, and the pre-treatment is performed even if a material with low adhesion 14 is used for forming the coating without performing the pre-treatment. It is possible to cover. For the thigh, for example, when degreasing is performed while applying ultrasonic waves in the degreasing step, as in the case of a haze, it is possible to remove ¾L lurking in fine irregularities, and it is possible to improve the cohesive injection.

(Friction coefficient at leak)

For a sliding member that is used under conditions that may cause the membrane to break due to the convexity of the surface, the two surfaces must be smooth and smooth by sliding. The friction coefficient of the moving member becomes the fermentation coefficient by using a material that becomes invisible by sliding.

It is important that the particle size of the lubricant is small in order to make the surface of the object smooth, and the particle size of the hard particles and the lubricant is smaller than other characteristics (within a range that can secure 4). In addition, if the amount of Nada is small, the sliding member will have a friction coefficient in order to achieve a smoother finish.

As a weaving agent for finishing the surface of S smoothly, Nada U, a modified silicone resin, is effective as in Examples 9 and 10. It can be seen that the member has a friction coefficient.

(High friction coefficient due to small surface roughness)

Mixed lubrication and boundary The friction coefficient of the oscillating member, which is below the bone, tends to become the friction coefficient as the surface roughness decreases.

The greater the surface roughness of the sliding surface, the greater the rate of breaking the formed oil film and the greater the proportion of the adhered portion. This is because the force for breaking the oil film increases. The ratio 丽 16 indicates that the coefficient of friction does not increase significantly compared to dogs with surface roughness.

«This is due to the material that requires a small force to cut. This is due to the large particle size of Mo S ₂ as a m¾tl agent, which has a large m in the ratio »JI 6.

^ In Example 2 (2 in Table 1), the surface roughness of the coating material was reduced by / J より compared to the fflffiness of the base material, and the customization was used to reduce the surface roughness of itself and the mating material by if motion. »Friction coefficient.

However, if the surface roughness exceeds 10 points, flat; the roughness does not reach the i »» 数 number because the above behavior does not exert the special ft that reduces the surface roughness of itself and the mating material.

[Table 2]

Note: AC8P'T6 is aluminum alloy. Table 2 shows aluminum alloy AC8P · T6 and dry swellable lubricant (polyamideimide 100 parts, PTFE (particle size 4) 4.3 parts, MoS ₂ (Particle size Ij m) 6.6 body part, graphite 1.4 body part is a comparison of the friction coefficient between the dry swellable bone aggregate of J16 and J in Example 2.

(Higher density with Shimozaki)

In the case of low solid content, such as the dry brain lubricant of the present invention, if there is a small defect in the base of the base material and there is a dent in a concave portion, the Wtt of the coating is impaired: fl »: ^ Means that the printing material is repelled: ^, resulting in coating defects. Therefore, if the surface of the base material is subjected to ultrasonic waves in advance to perform normal thighing or the like, the above-mentioned can be easily performed and the problem can be prevented.

Further, when the base material is provided with sharp irregularities by wart blasting and shot blasting, the dry swellable lubricant of the present invention has a small solid content and E. For Riamidimido resin and key good sex, and exhibit good Ku enter anchors one effect to the sharp indentations, as shown in Table 3 summarizes this _c capable of obtaining a high Wtt plating par.

[Table 3]

(化 door friction coefficient by pattern coat)

In screen printing, after controlling purchasing, a pattern coat as shown in Fig. 1 can be applied. Since there are not many restrictions on pattern transfer, it is important to determine the likelihood from custom order.

Figure 1 focuses on this point. To explain the pattern coat effect using a piston skirt as an example, when the motor rotates at a high speed, the fluid is smooth except for the above-mentioned moment. Reduces the friction required to move the piston, which can improve fuel efficiency.

Fluid friction is expressed by the shear force of the fluid: Shear «(proportional to rotation speed, clearance is HJ example) X-sliding mm. For example, if you work with or without resin coating, resin coating becomes thicker as the thigh becomes thicker. Friction is reduced. When reducing the sliding 麵 (resin coating 麵), the lubricating oil becomes smooth if it is parallel to the sliding direction (lubricating oil flow direction) shown in Fig. 1, so the sliding reduction effect is sufficient. can get. Therefore, it is possible to maximize the frictional effect of reducing the sliding by coating the coating of the Φ example with a thick film in a small number of times.

Graceful multilayering)

The skin swelling lubricant of the present invention is applied, for example, at 6 ° C. after coating the first layer with a spray coat or a screen print coat. cx

A second layer can be coated on top of it. By repeating the coating process and drying in such a way that the surface is not sticky, a multilayer coating can be performed, and a multilayer coating can be formed without impairing the injection. By changing the atmosphere within the range of the dry intercoat lubricant of the present invention, the friction coefficient is increased.

«Characteristics» If a special order that is excellent for each of the high adhesion injections is provided for each layer, a sliding member having excellent characteristics for each layer can be obtained.

(Characteristics with the partner material ^ :)

(5) The special ft of the counterpart material was examined for the application material of Example 2 and the coating sample of Hijiang 16.

The test was performed using a test image of ββ * rubbing, familiarity: l OOOrprn X25 kgX 5 mi η φ test: 1000 rpm x 25 kgup / 1 mi η, grease: 5W30 Base oil oil bath.

The test was stopped when the coefficient of friction rapidly increased to 0.15. ±, and the load was taken as the seizure load. In addition, the quality of the basket was compared (after completion of the trial). The results are shown in the table.

As the mating material, the order of lower friction coefficient increased in the order of Alemi MMC, FC 230, A390 and T6. Aluminum MMC showed the lowest coefficient of friction because it was a material in which various hard components were uniformly dispersed. It is thought that the friction coefficient was obtained.

Next, the ffit friction coefficient is FC230, which is hard to be mirror-finished along with itself and the mating material because it does not contain any hard component. Ifl's aluminum MMC material has a higher friction coefficient. It seems to have been lost.

A390 · T90 (high Si aluminum alloy) is the most difficult to secure itself because the primary crystal Si with an average bacterium strength of more than 30 m is dispersed as a hard component to secure its resistance. The coefficient of friction increases.

J @ ¾M decreases in the following order: A 390 · T6> aluminum MMC> FC230. Yoshika is shown in Table 4.

* The coating in the H example is a special order that is comparable to other coatings such as F e P plating even if the mating material is changed if the average baking, the coefficient of friction, and the average ± 3 depths are changed. You can see that it has [Table 4]

(How to obtain thick film with screen mark 1)

In addition, in the normal screen printing coating method, the screen is # 250, the vertical direction is «Doo angle 0 °>, the work feeding is 25 rpm, and the example is a thick film coating of the thread material. Therefore, under the condition (1) of the present invention, the squeegee is coarsened (# 120), and the rubber squeegee 1 is protruded by 15 mm from the fixing jig 2 as shown in FIGS. Vertical angle between screen 3 and 35. The printing material 5 can be formed into a thick film by slowly printing the work 4 at a speed of 5 rpm. Also, as shown in FIG. 3, the condition for fixing the rubber squeegee 1 is as follows, as shown in FIG. 3, under the condition that the fixing jig 2 is protruded by 5 mm, the «W degree with the screen 3 is set to 70 ° from vertical, and the fixing jig is pressed. Dried fibrous body I Material 5, is coated in a thick film. Further, under the condition (2) of the present invention, the screen was roughened (# 120), and as shown in FIG. 4, the IJ-shaped squeegee 6 protruded 1 Omm from the fixing jig, and the squeegee 6 and the screen 7 By printing the work at a speed of 15 rpm at a low speed, the printing material 8 consisting of a dry, inflatable leap can be made into a thick film.

The composition of the dry lubricating lubricant can be formed by changing the combination of these conditions. Table 5 summarizes this. [Table 5]

As the screen printing coating conditions for obtaining a thick film + good finish with one coat, the mechanism of coating by screen printing is not clear, so the reason for forming a thick film in the present invention is considered as follows. .

The limit is to reduce the screen mesh size from # 250 to # 120 and reduce the difficulty from 25 rpm to 5 rpm even with a 7 m Mff.

Therefore, to make the film thicker, making the screen mesh size coarse is an essential condition, but not a sufficient condition. More specifically, the amount of printing that can be output from a screen mesh size in one coat is proportional to the amount of printing agent retained in the screen mesh. Up to a certain point, the larger the mesh size, the larger the printing amount.

The amount of the printing agent held in the screen mesh to be transferred and transferred depends on the characteristic ft of the E-block printing agent. In other words, a fiber with a high solid content is suitable for thick film (»printing), but the leveling ft ^ is inferior to the coating film. <3» As in the example, the solid content is high. In a composition with a small amount of squeegee, it is possible to add a squeegee to the squeegee.

The effect is small for each of mesh size, squeegee angle, and movement of the work. Specifically, the mesh size is # 80 to 120, the squeegee angle is 0 to 90 °, and the work moving speed is 5 to 15 rpm.

The reason for this is that in the case of Sir yarns such as In ordinary squeegees, etc., which contain a small percentage of solids, the scaffold does not pass through the screen mesh and transfer to the partner work. When the printing agent is a bodily thread, the force that causes the printing agent to stay on the screen is greater than the force that the printing agent is attracted to the work, and only a small amount is transferred, so that a thick film is not formed. However, by making the squeegee H ^, the printing agent is mainly forced out of the screen mesh by the squeezing action, resulting in a thick film. Furthermore, especially in the case of the present invention mainly composed of a liquid component, the leveling property is good and the finish of the finish is good.

(Evaluation of Wtt for thick screen-printed film)

Using the male of the rice cake of the present invention (2), the surface of the base material having a ten-point average roughness of 3.2 / mRz was used as the dry expandable lubricant of Example 14 of the present invention. Swelling: screen printed with a 12 um thick film. As a base material, a test piece made of an aluminum alloy was used. An adhesion test was performed on the obtained moving member. In the adhesion test, iH® was used for the _M (3) adhesion test.

As a result, the evaluation of the adhesiveness was ◎, and excellent viscosities were obtained even for the screen-printed thick film.

(Evaluation of ossification of screen-printed thick film)

The dry lubricant of the sickle example 4 of the present invention was screen-printed on a base material having various surface roughnesses using a male of the condition (2) of the present invention with a 2 m thick film. A test piece made of an aluminum alloy was used as a base material.

The surface roughness of the sliding surface of each base material and the surface of the substrate on which the dry swellable lubricant was applied were determined using a surface roughness meter, and were evaluated with ten points and flatness:% roughness mRz. did. Figure 5 shows the result of this smoothing.

As shown in FIG. 5, when the dry film lubricant of Example 14 of the present invention was screen-printed using the method of the present invention condition (2), the surface obstruction was 0.1 point average roughness of 0.1 point.

Smoothed around 0 mRz.

Claims

1. Polyamideimide and Eho. At least one kind selected from xysilane and epoxy resin, and at least one hard kind selected from nitrided and alumina;

2. The article is described in Thunder Blue Slurry 1, which is an epoxy silane.

3. The dry swellable lubricant of iB¾ according to claim 1, further comprising at least one solid lubricant selected from polytetrafluoroethylene, molybdenum disulfide, and graphite.

4. The surface of the skin having a base material and an object formed on the sliding surface of the base material with the tin self-drying swellable lubricating agent according to any one of claims 1 to 3. A sliding member having a roughness of 10 points or less in average roughness of 3 mRζ.

5. The sliding member according to claim 4, wherein the sliding surface of the base material has a low coefficient of friction of not more than 8 mRz in ten-point average roughness.

6. The sliding surface of the self-made base material is made to have grease or alkaline thigh under ultrasonic waves and / or sharp irregularities are formed by either water blast or shot blast Nari. A sliding member according to claim 4 or claim 5.

7. The sliding member according to claim 4, wherein the self-coating layer is formed of two or three layers made of different self-drying swellable lubricant.

8. The base material and the sliding surface of the base material have a dry swellable i-type IJ of the S ネ as described in claims 1 to 3, and the skin is formed of lightning. A sliding member having a thickness of at least 10 mm ± on at least the if moving surface of the base metal.

9. The knitted fabric is printed with a pattern, and a thick film of 15 m_h is formed on at least ^ の of the sliding surface of the base material in the ¾x direction of the lubricating oil. Fiber sliding member according to claim 8.

1 0. The self-am is formed by screen printing. In the screen printing, the eyes of the screen are set to # 1 201 1 below, the squeegee «| The sliding member according to any one of claims 4 to 9, wherein the sliding member is set under a condition of not more than 25 rpm.

11. The sliding member according to claim 5, wherein the moving member is selected from a piston, a shim, and a clutch.