TW552349B - Method of surface treatment for a piston - Google Patents

Abstract

This invention relates to a method of surface treatment for a piston for reducing surface friction of the piston. The piston is placed in a container submerged by lubricant oil filled into the container, and heated to 220-250 DEG C, into which container is added 0.3-1.0 wt% of alkaline metal carbonate, 0.3-1.0 wt% of alkaline metal nitrous acid, 0.2-0.6 wt% of alkaline metal chloride, and 1.0-1.6 wt% of rare earth metal powders containing cerium, and then maintained at the above temperature for 10-24 hours. The oil bath is then naturally cooled after the heating is stopped. The piston is removed after the oil is cooled to 50 DEG C to obtain the final product. As such, this invention may be adapted to serve as piston and cylinder of generators such as gasoline engines and diesel oil engines, so as to significantly improve the working efficiency and life cycle of the cylinder, while reducing oil consumption and contamination caused by exhaust of vehicles and air compressors.

Description

V. Description of the invention (1) V. Description of the invention (1) The present invention is a method of treating a piston, friction force, and piston (force, which relatively increase the life of a steam ring in the internal combustion engine of a piston internal combustion engine, resulting in high temperature and high piston The force is passed through the connecting rod so that the gas does not have a piston ring in the groove, which is a circular ring. When the piston is on, the high temperature and high pressure i seal effect is avoided. However, the existing one is to reduce the reciprocating movement. But the expansion of the aluminum alloy, 'to make the piston heated: the profile line is often designed to be-ellipse shape in the horizontal direction is small, the cylinder gap is between; Μ ~ 〇. 0%, diesel ~ 0. 18%, this The surface treatment method of the living base in the field of the invention significantly reduces the surface treatment method of the sealing degree and the extension of the piston ring (especially the piston skirt) of the reference cylinder; "the background of the invention is a piston type connecting rod The gas from the engine is propelled to the crankshaft, so that the crankshaft rotator is provided on the piston. When the tongue base ring is opened and reciprocated, the piston carcass is designed from the piston ring to the cylinder plug. Quality of parts The f coefficient of the piston is larger than that of alloy cast iron (not tightly attached to the cylinder, and the upper and lower are smaller, with a certain amount. In the case of an oil engine with a maximum ruler of the piston staggered part, in the case of the engine, about ^: Cheng:, especially Refers to a friction cylinder liner, piston, and piston mechanism between the friction cylinder wall between this side and the piston ring. The fuel moves in the cylinder and the piston turns to perform external work. Piston ring groove, piston ring gap The alloy cast iron ring is always close to the cylinder, passing between the walls, and the defects are affected: Generally, the aluminum alloy is used to make the cylinder material) It is much larger and causes damage, the irregular taper of the piston skirt, the water inch is about the cylinder diameter than the cylinder diameter 〇. L cylinder diameter of 0. 1 552349 V. Description of the invention (2) ----- ^ 1. When the piston moves up and down, the piston's swinging portion strikes the cylinder, thereby increasing the operation of the internal combustion engine. The standing skirt and the master 2. The piston's swing increases the piston ring in the ring groove; that is, the wear of the plug ring groove and the piston ring shortens the service life. Tough acceleration activity 3. Once the piston ring groove is worn, the piston ring is in Ring-like The suction of the oil to the upper part of the cylinder / the beating exhaust pollution and the excessive consumption of the oil....... '' In order to improve the wear resistance and anti-biting of the two pistons and piston rings,-general Taken, the surface of the plug ring is filled or nitrided, and the cylinder is connected; the porous chrome (C /) or indium (M.) is found; the piston skirt is tin-plated or "ΐί" technical measures. However, these measures did not change the essence of the high-speed semi-dry sliding friction of the pistons and piston rings. They could not move, and there was no gap or micro-gap movement in the phase. Therefore, they could not be embarrassed. The objective of this invention is to overcome the above-mentioned shortcomings. To provide an open ring groove and piston ring rate, and extend the cylinder. The inventor has made many experiments and continuous improvements in view of the many years of conventional manufacturing experience, and finally researched Surface treatment method of the piston. The main object of the present invention is a frictional force between cylinder walls and a surface treatment method for effectively improving the working efficiency of a cylinder. Many shortcomings, so use their work to solve the problem and solve it, and it has been issued-a solution to the above-mentioned conventional defects can significantly reduce the friction between the piston and the steam, and some use the strange life of the piston

552349

V. Description of the invention (3) In order to achieve the foregoing object, the present invention provides a surface treatment method for a piston, the steps of which include: preparing materials: placing a plurality of pistons in a container, and pouring mechanical oil to completely submerge the pistons; : Under conditions that will not cause oil splashing, gradually increase the mechanical oil in the container to an operating temperature of 220 to 250 ° C;

Blended mixture: The machine oil in this container is evenly sprinkled into a mixture consisting of alkali metal carbonate, metal linoleate, metal chloride and thorium-containing rare earth metal powder, wherein the mixture and the mechanical oil are added The amount should comply with the following weight percentages, the weight percentage of the alkali metal carbonate is 0.3 to 1.0%, the weight percentage of the metal nitrite is 0.3 to 1.0%, and the weight percentage of the metal chloride is 0.2 to 0.6 %, The weight percentage of the rhenium-containing rare earth metal powder is 1.0 to 1.6%, and the remaining weight percentages are mechanical oil; constant temperature for a set time: hold at the above operating temperature for 10 to 24 hours; cooling: stop heating to Allow the oil bath to cool naturally, wait for the oil temperature to cool below 50 ° C, and take out the piston, which is the finished product. Advantageously, the rare earth metal-containing powder is a powder of metal decoration.

Among them, the test metal carbonate is sodium carbonate. Among them, the test metal nitrite is sodium nitrite. The alkali metal chloride is sodium chloride. Among them, the best operating temperature is 2 3 0 ~ 240 ° C. Among them, the optimal holding time for these operating temperatures is 1 3 to 16 hours.

Page 6 552349 The main reason for existing actions, for the sake of reason. The roots of the Ming Dynasty are wiped by friction. There are various hydrocarbons caused by the friction of the prime mover. The metal can be part of the lubricant. Because the surface and the Runming system only read this method, they show that they are not creative in this technology. For no reason and the piston knows, there is a layer directly in the city, which plays a role and let its surface shape function. The summary of the adsorption of smooth metal zeros, in order to make it clearer that the valley is implemented, so in order to explain the limitation of this hair style, it is clear that any modification or ring in the steam red has no gap between the walls, The friction between the piston and the piston cannot be explained. V. Explanation of the invention (4) However, the above-mentioned reviewers and the technology to understand the present invention have shown in the preferred embodiment of the present invention in conjunction with the illustrations that the same changes shall include The gap between the cylinder wall of the gap-moving cylinder and the friction between the friction parts of the engine has a kind of chain-like oil that can be adsorbed and erected, and the gold polar group is very strong. The description of the manual can be explained according to the present description. The following detailed description of the clear protection provided by the present invention is to achieve the piston. The piston ring is a metal watch formed on the surface of the piston ring and the piston ring according to the theory of lubrication. In particular, the head additive has a lubricating component on the surface at one end and the surface of the metal. Here, it is divided between the two slipping components. It is only described in the industry official's statement that it has only any shape. The lubricating / lubricating film of the lubricant between the piston and the cylinder groove makes the friction to turn into a polar group added to the lubricating field as a lubricating pin for the commodity pin. The polar group without the polar group forms a thicker layer. Oil, however, even the suction members on the metal surface are destroyed when they rub against each other. It is sold in two or two zero oil films. The lubricant is a unisex group and the end is directed to the film.

552349 V. Description of the invention (5) In order to make up for this shortcoming, in the prior art steam red products, a number of oil storage textures are ground on the cylinder wall to facilitate the cylinder wall to replenish lubricant. However, the oil storage texture should not be opened too much and too dense, otherwise it will cause unevenness on the cylinder wall surface. Therefore, most of the surface of the cylinder wall and the entire surface of the piston are smooth, so the complete film of the oil cannot be guaranteed during the stroke of the cylinder (generally close to 50%), and the oxide particles are formed.

According to this knowledge, if the end of the pit can be formed, the smooth piston material can be guaranteed to be microscopic. This is because the above-mentioned micro-so-thick and densely lubricating oil will not penetrate into the micro. The shadow of the shadow aluminum is small and the surroundings are free to roll down at least one small pit, which allows the solid oil film to absorb the solid oil film and affect the metal sliding. The relatively weaker alloy aluminum is in addition to these small oils. Therefore, the frictional force of rolling friction is actually mixed with these small concave adjuvant molecules on the square surface. Therefore, the surface of the part is effective, and the surface is shaped. If it can be in the pit, it will definitely be there. Function: 〇 Ming people also contain rhenium metal powder. Many uniformly reach the storage of polar groups. Some small pits in the cylinder, so the alloy's non-uniformity is uniform and dense. The oil absorption is strong. Some small particles and small pits can not be entered in a boat. Micro 'and also allowed to be, and all have a complete, and will not find a part of the self may be in the presence of particles One layer of lubrication can reach between the parts. ’Thorium-containing dilute (Ce)’ is found by explosive oxidation.

The effect of a pair of naked eyes on the small pits. The fine metal in the stroke is pitted as long as the agent is used. Hard small adsorption active and metal 552349

It has a kind of structure that is both hard and contains many micropores. It absorbs oil and can not be broken during the rolling process. It achieves a self-weight effect. This reduces the friction between the two metal parts. The invention relates to a surface treatment method for a piston, which is used to reduce surface friction. The method includes the following steps: I pour mechanical oil to prepare the piston: put the piston in a container and completely submerge it; Under the condition of causing oil splashing, the weeping oil is gradually heated to an operating temperature of 220 ~ 250 t (this; operation; mechanical state is 230 ~ 240 ° C); In the mechanical oil in the uniform, the genus J is the acid salt (the best choice is sodium carbonate Na2C03), the test is performed by the test, (Nongjia chooses sodium nitrite NaN02), the alkali metal chloride (say ^ select It is a mixture consisting of sodium chloride (NaCl) and rhenium-containing rare earth metal powder (best ^ f 钸 powder), in #, each component and mechanical oil :: s should meet the following weight percentages: into the weight% 0 · 3 ~ 1 0%

The remaining ingredients are metal carbonate (best choice is sodium carbonate) metal nitrite (best choice is sodium sulfonate) metal chloride (best choice is sodium chloride) rhenium-containing rare earth metal powder (most The best choice is metal rhenium powder) Mechanical oil temperature one set time: keep at the above operating temperature 丨 〇 ~ for hours (the best choice is 1 3 to 16 hours);

552349 V. Description of the invention (7). . After: ";" heating to make the oil bath naturally cool, T ^^^ ~ silly take out the piston, which is the finished product. After the oil temperature is cooled to 50, the invention is explained in detail below: As long as the method of Ltf is clear, the mechanical oil is Types ,, ... = Do n’t limit, just ca n’t warm up = splashing oil on the heating speed due to water jet or evaporation of impurities. If you do n’t need to replenish the original scale in time to ensure that the machine oil is reduced, Should be, the ratio of sub-maintaining mechanical oil to each component will be prolonged with the increase of the amount of oil bath. The household weight: No = It can be seen that metal carbonates (such as carbon steel or ς; Body: constant heating time. (Such as sodium or potassium nitrite), alkali metal chloride dimetal nitrite) are substances that are weakly corrosive. However, such as sodium or potassium gasification and the molecules of mechanical oil are non-polar , So the son is highly polar, but can be suspended in a finely dispersed state :: ;; dissolved in mechanical oil-a microscopic heterogeneous weak humer agent. This is = bath, formed : Mechanical oil 'instead of choosing water-based media: Two = to choose to Reasons. ~ The main reason for the corrosion of the carrier medium by these etched debris is that many small pits are densely formed due to the concerted action of these corrosive agents; ground, if the proportion of these corrosive agents in the mechanical oil]; low =: head : Too large = pit, which affects the surface of Ming alloy = 4;… In addition, the rare earth metals are active metals, they are easy

552349 V. Description of the invention The oxygen of plutonium-reacts to form rare earth oxides. Among them, thorium dioxide (Ce0) is a kind of hard particles, which can be used as a polishing abrasive. However, hafnium dioxide, which is formed by explosive oxidation reaction of metal hafnium powder, has a porous and hard structure, and households can roll freely in small pits that can absorb a large amount of lubricating oil and sink in the surface of aluminum. However, by precipitating in aqueous solution: 成 的 一 氧化 #, it cannot have such a porous structure. "It is the essence of this article. So, choose a rare earth metal containing rhenium (the best choice is rhenium metal) and choose directly. Thorium monoxide is the main reason for the reaction additive. Bottom view: The treated piston slice can be observed under a microscope electron microscope with a magnification of 500 times. This attachment can also be observed with the above-mentioned additional components: Xue = two ::, the surface particles are only Thorium-containing rare earth oxides (especially from:;: some :: dilute particles are slightly rubbing on the surface of the piston; sliding friction mode transition in the mold: cost of the invention greatly reduces the friction between metal surfaces And, two: The friction force in the groove of the tongue base ring will also be reduced to the same extent. Also, the two tongue plug rings will also be treated similarly with small pits. , Friction • further reduce the friction between iron and iron. However, because the material of the piston ring is different ii :: 疋 alloy inscription, so its micro-pitting residue treatment formula will file a patent application for another invention. 1 + Heart moon

552349 V Description of the invention (9) ^ In addition, if the operating temperature is lower than 220 ° C, the rate of corrosion is too slow, which is not good for productivity. Phase and g V cause micro-pits 250 ', which will cause the micro-pits to erode too fast. If it is higher than that, the pits are too large, and may even affect the metal surface, and valleys may cause micro-, f ΐ 温 ί 超 ㈣G t · 'It may cause the machine ^ Heiji: The uniformity of the corrosion of the two small pits and the U-shaped pits. Therefore, the stabbing dislike tf ^ ^ ^ ^ ^ 220 〇C -25〇 ° C (t ^ ^ # ^ 2 3 0 ^ 4 14 ^ 4 〇 and if the holding time of the operating temperature is less than 10 It is not sufficient. On the contrary, small: then = small pits: the formation may be excessive ..., the operation temperature is 10 to 24 hours (the best choice is 13 to 16 hours). Keeping ㈣ is limited to the field Compared with the existing technology, the effect is as follows: Nai can achieve the effects of the overall design of the flying cylinder: i. Can eliminate or significantly reduce the piston skirt and the steam engine ... The engine can achieve no gap, diesel engine . Clearance cylinder diameter of .0 5 ~ .07%, which is reduced by half compared to the conventional design. On. About the steam 2 7 use of non-textured or shallow _, and the left 彡 Μ; --γ · production The cost can be reduced by mu. Second, the beneficial effects when used in internal combustion engines: 1. The compression force of several cylinders is increased, which shortens the work of diesel engines and improves the power and economy of diesel engines. ≫ Consumption reduction 'reduces exhaust in internal combustion engines

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The overall life of the cylinder is increased by 1 to 2 times. Improved cold start performance. Improved idling stability. Reduced running noise. There is no damage to the red-faced oil film. The lubricating oil is not easy to age, and the tendency to pull the cylinder is significantly reduced. Putian recognizes that the 1 L oil change period is more than doubled. 、 When applied to the piston type air compressor, the suction vacuum is increased, and the air cylinder is mysterious. The n ^ m ^ ^ π cylinder is tightly sealed and pumped fast. Compressed milk contains less oil. %, The life of the cylinder and piston is extended by 1 ~ 2 times. The present invention is specifically explained by the following yoke examples and application examples, but the present invention is not limited by these examples; of which: [Example 1] / 'Put the piston of the engine / into a metal container , Pour 2330g of No. 32 mechanical oil into it, at this time the mechanical oil level flooded the piston. Without causing oil splashing, use electric heating to gradually increase the temperature to 2 3 5. 〇, use a small spoon to divide into several people-about 15 minutes, sprinkle a mixture consisting of 5 g of sodium carbonate, 15 g of sodium nitrite, 10 g of sodium chloride, and 30 g of metal gallium powder. At this time, the various ingredients are Examples of the weight percentages of all solid additives and machine oil mixtures are: sodium carbonate 0.63%, sodium nitrite 0.63%, sodium chloride 0.42%, metal rhenium powder 1.3%, mechanical 97% oil. After the additives are added, keep the temperature at about 235 ° C for 14 hours, and then turn off the power to allow it to cool naturally, until the temperature of the oil bath is reduced to 40. (: Take out the piston 552349 at the time. 5. Description of the invention (11) 'as a finished product. [Embodiment 2] The difference between the implementation of this embodiment 2 and the use of rhenium is basically the same as that of the previous embodiment 1. 50g) instead of examples! : Mixed rare-earth metal powder (where [Example 3] + implementation point of this example 3, except that the processing object is made of VA Benlu and the same oil engine piston as in Example 1. From the original gasoline engine piston, change [implementation] Example 4] The implementation conditions of this Example 4 are the same as those of Example 1 on the second base. The original gasoline engine piston was replaced with the compressor piston. [Embodiment 5] This actual tr Actually, the conditions are basically the same as those of the embodiment 2. Only the processing object is changed from the original gasoline engine piston to the oil engine. [Embodiment 6] The detailed implementation conditions of this implementation are basically the same as those of Embodiment 2. The same thing, except that the processing object is changed from the original gasoline engine piston to the compressor piston. The application example to explain the achievement of the piston surface treatment of the present invention is as follows: [Application Example 1] When the gasoline engine piston is separately treated The effect is the same, different decoration content becomes firewood, different becomes empty, different becomes firewood, different becomes empty.

Page 14 552349 V. Description of the invention (12) Example of CA 丨 CA6102, Bi, and Shangong produced by the China Central Processing Plant were launched at FAW.彳 '彳 In the hand to enter the gasoline engine of the vehicle. The original design of the gasoline engine was: 3mm.耷 耷 日 η 日 位 X 仃 私 〇1 · 6mm X 114. Two air gap designs: the first air ring 0.5n, the first ring 0] t R .6_, the second air ring 0.4 ~ 0.6 mm, the fourth oil coat 0.3 ~ 0.5mm. The rice clearance 〇〇2 ～ 〇〇6_. The first ring opening gap of the fourth ring after the oil transformation 〇 one is 0.1mm, the fourth ring n7 The gap between the cylinders of Brother Yiyi and Brother Sandao reached _〇 ^. The original machine boring cylinder was inlayed with a cylinder liner to make it larger) -〇 (无 Ϊ). (Extra, that is, the size of the piston skirt is smaller than the cylinder inner diameter The test proves that the economy of the engine's suction and vacuum production is significantly improved. The vehicle power and [Earth Use Case 2] effects when the diesel engine piston is treated separately: κ Example 3 produced by the treated diesel engine plant D6114 diesel engine ϋ 木 / wood oil bow 丨 retrofit. The original design of the diesel engine into the vehicle's oil engine is: cylinder diameter X 1] 5 m τη., Lonely ϊ class deduction 1 τ 11 4 mm χ 】 Vrl: clearance design: the first channel air ring 0.4 ~ "_, the first transport rolling 0.4 ~ 0. 6mm, the third bfflm gap 0. 17 ~ 0. 23mm. 3 0.5_, after the first change between the cylinder -Road ring口 〇15_ ， Second ring Q 2_ Funny ring 0.07mm. For example, if you use shallow netting, you can drop it to 0. 0mm. After 25 thousand kilometers, # ，，, with cylinder clearance 禺 Λ 里 仃The vehicle has good dynamic performance, 552349

Fuel consumption _ Zhao &, the average over the same period before the oil change period. The knitting consumption is significantly reduced and the m is disassembled. Γ Free-force mouth velocity smoke is less than 2 degrees, and the cylinder compression force piston ring wear is very good. 'Cylinder liner has almost no wear. Result: [Application Example 3] Simultaneous processing of gasoline engines Effectiveness of pistons and piston rings. The treated gasoline engine piston and piston ring obtained according to a similar microcomputer method are used in a 6102 gasoline engine for FAW to launch a 4,102 gasoline engine to perform a gasoline engine on the vehicle. 'The obtained result is better than that of the application example 1. After the modification, the opening gap of the first ring can be reduced to 0_, and the opening gap of the fourth and first rings can be reduced to 0.5 mm. These two opening gaps are not only much smaller than the correct opening gap (only equivalent to 0% ~ 20% of the original opening gap). Moreover, it is significantly smaller than the piston of the present invention and the conventional piston ring alone. The minimum clearance achieved by port 4. In the vehicle driving test, all the results are better than the results of application 1. [Application Example 4] The effect of treating diesel engine pistons and piston rings at the same time is the same as in Example 3. The diesel engine piston and the piston ring obtained according to a similar micro-sag corrosion treatment method are used in the D6114 diesel engine produced by Shanghai Diesel Engine Factory to modify the diesel engine of the vehicle. The obtained result is better than the result of application example 2. Even better. After the modification, the opening gap of the second ring can be reduced to 0. 18min. If a shallow-textured small-diameter cylinder liner is used, the gap with the cylinder can be reduced to 0.07mm. = BITtwo

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5. Description of the invention (14) The gaps are not only smaller than the openings before the modification, but smaller than the conventional small gap between the piston of the present invention and the conventional one. The vehicle driving test results are even better. It is much more, and it is also obvious that the maximum percentage that can be achieved when the %% is matched. All results are better than those of Application Example 2. The above embodiments and application examples can be used for various types of engines including gasoline engines and diesel engines. Applicable to the modification of cylinder pistons, which can obviously improve the life of the piston and the entire cylinder, including the compressor, the compressor, and the compressor. The working efficiency of the cylinder is the pollution of the exhaust gas of automobiles or empty factories. . Because ::: =: Ancient and can be reduced !, King. u This has a very good industry

To sum up, the present invention can effectively improve the lack of conventional pistons. Two ...- a very good invention, and it is not found in any publications, so it fully complies with the legal requirements of invention patents. For patent application, please ask Jun Bureau for granting the patent for this invention.

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Claims (1)

552349 VI. Application for Patent Scope 1. A method for surface treatment of a piston, the steps include: preparing materials: placing several pistons in a container and pouring mechanical oil to completely submerge the piston; heating: under conditions that will not cause oil splashing Next, gradually increase the mechanical oil in the container to an operating temperature of 220 ~ 250 ° C; Blend the mixture: Disperse the mechanical oil in the container evenly with alkali metal carbonate, metal oxalate acid 3〜1.0% ， 该 测 Salt, test metal chloride and a mixture of rhenium-containing rare earth metal powder composition, wherein the addition of the mixture and the mechanical oil should meet the following weight percentages, the weight percentage of the alkali metal carbonate is 0. 3 ~ 1.0%, the test 2 ~ 0. 6%, the weight percentage of the rhenium-containing rare earth metal powder is 1.0 ~ 1.6%, and the rest of the The weight percentages are all mechanical oil. Constant temperature for a set time: keep at 10 ~ 24 hours at the above operating temperature. Cooling: Stop heating to allow the oil bath to cool naturally. Wait for the oil temperature to cool to 50 ° C. , Remove the piston, is finished. 2. The surface treatment method for a piston as described in item 1 of the scope of patent application, wherein the rhenium-containing rare earth metal powder is a powder of metal #. 3. The surface treatment method for a piston as described in item 1 of the scope of patent application, wherein the metal carbonate is sodium carbonate. 4. The surface treatment method for a piston as described in item 1 of the scope of the patent application, wherein the metal sulfonate is sodium sulfonate. 5. The surface treatment method of the piston as described in item 1 of the scope of patent application Page 19 552349 VI. Patent Application Law, in which the metal chloride is sodium chloride. 6. The surface treatment method for the piston as described in item 1 of the scope of patent application, wherein the optimal operating temperature is 2 3 0 ~ 240 ° C. 7. The surface treatment method for a piston according to item 1 or item 6 of the scope of patent application, wherein the optimal holding time of these operating temperatures is 1 to 16 hours. Page 20