GB2423306A - Surface cladding manufacturing method of motion pairs system - Google Patents
Surface cladding manufacturing method of motion pairs system Download PDFInfo
- Publication number
- GB2423306A GB2423306A GB0601645A GB0601645A GB2423306A GB 2423306 A GB2423306 A GB 2423306A GB 0601645 A GB0601645 A GB 0601645A GB 0601645 A GB0601645 A GB 0601645A GB 2423306 A GB2423306 A GB 2423306A
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- cladding
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- 238000005253 cladding Methods 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 42
- 230000033001 locomotion Effects 0.000 title claims abstract description 28
- 239000002245 particle Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 30
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000001994 activation Methods 0.000 claims abstract description 5
- 230000004913 activation Effects 0.000 claims abstract description 3
- 230000005518 electrochemistry Effects 0.000 claims abstract description 3
- 238000005245 sintering Methods 0.000 claims description 34
- 238000012360 testing method Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 19
- 238000011282 treatment Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910000906 Bronze Inorganic materials 0.000 claims description 8
- 239000010974 bronze Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 238000000280 densification Methods 0.000 claims description 8
- 239000011812 mixed powder Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005238 degreasing Methods 0.000 claims description 7
- 238000011049 filling Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000007547 defect Effects 0.000 claims 10
- 101001026578 Hordeum vulgare Ent-kaurenoic acid oxidase 1 Proteins 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 13
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 8
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002105 nanoparticle Substances 0.000 abstract description 3
- 229920002521 macromolecule Polymers 0.000 abstract description 2
- 238000004663 powder metallurgy Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 11
- 239000004809 Teflon Substances 0.000 description 10
- 229920006362 Teflon® Polymers 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 8
- 229910000851 Alloy steel Inorganic materials 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910018104 Ni-P Inorganic materials 0.000 description 2
- 229910018536 Ni—P Inorganic materials 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- 241001124569 Lycaenidae Species 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005844 autocatalytic reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000014987 copper Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910001453 nickel ion Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1633—Process of electroless plating
- C23C18/1655—Process features
- C23C18/1662—Use of incorporated material in the solution or dispersion, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0702—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/0779—Antenna details the antenna being foldable or folded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/20—Shaping by sintering pulverised material, e.g. powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Dispersion Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Powder Metallurgy (AREA)
- Chemically Coating (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A surface cladding manufacturing method of motion pairs system, a method that enables submicron and nano-based tetrafluoroethylene macromolecule particles to be well mixed in NI-P-based composite electrolyte via various proportions and allocation technologies as appropriate, thereby making those particles to be evenly cladded on the surface of sintered parts that is formed by the copper-tin base powder metallurgy through the electrochemistry reaction, based on diverse proportions of nano particles and/or micron-sized particles. Owing to high activations of both superfine particles, the invention enables the complex reaction of superfine particles on the surface of tetrafluoroethylene and copper-tin base component to be directly completed in low temperature. Therefore, the invention enables products that are produced by the technology to possess the characteristics of wear-resisting and high hardness, low friction factor, precision in size, lower manufacturing cost and higher system capacity efficiency.
Description
1 2423306 High-Effect Surface Cladding Manufacturing Method of Motion
Pairs System
FIELD OF THE INVENTION
This invention relates to a high-effect surface cladding manufacturing method of motion pairs system, in particular, a method that enables su bmicron and nano-based tetrafluoroethylene macromolecu le particles to be well mixed in Ni-P-based composite electrolyte, thereby making those particles to be evenly cladded on the surface of sintered parts, based on diverse proportions of nano particles and/or micron-sized particles.
DESCRIPTION OF THE PRIOR ART
Generally, the motion pairs system that is applied in the industry is able to be divided into contact type and non-contact type, wherein the non-contact system is based on the design of magnetic suspension or airpressure suspension. However, excepting those devices with high precision and high value charactistics, ordinary motion pairs components are mainly based on the designs of rolling or sliding contact type motion pairs, taking the factors of manufacturing cost, system control and the complexity of high-priced device maintenance into consideration.
The sliding motion pairs design mostly applies lubricating oil, selflubricating oil sleeve or flexible transition material to each two sliders, the lubricating oil adding is a more economical way among those method.
Nevertheless, such a lubricating oil adding method is not able to be applied to closed mechanisms and those mechanisms that have to avoid being polluted from oil stains. Said soft transition material possesses the easy abrasion and replacement characteristics to reduce the attrition of a product, nonetheless, the abrasion of such a transition material enables variation in size precision; in addition, such a transition material generates fine particles to bring serious pollution into a product system, owing to considerable abrasion thereon. Moreover, seeing that those self-lubricating oil-impregnated sleeves or bearings possess the function of automatically lubricating straight-I me motion and orbiting motion components, those sleeves or bearings have lower prices on average and are considerably applied in the industry. Furthermore, owing to suitable common difference design of the size in the combination of revolving spindles and bearings, the components generate lower noise during revolving, so as to be widely applied to small cooling fan products. However, the lubricating oil consumption and the oil-immersion rate are influenced by workplace temperature, the density of material and higher friction factor value on the surface of material, said bearings have shorter/poor life-spans to the motion pairs with higher motion speeds required; for example, an average life span of a self-lubricating bearing is about 20,000 hours, far less than 50,000 hours of a roller bearing, so as to impose restrictions on
the application fields.
The rolling motion pairs design mostly applies to conventional roller bearings, which have longer life-spans for use and enable slight deviation of inclination angles and acceptance of heavier radial load upon the assembly of those bearings, therefore, the rolling bearings have been applied to rolling products as radial and part of axial supporting parts thereof. The straight-line motion pairs design applies a plurality of roller bearings to be installed on fixed straight slideways for straight-line motions, however, the problems of noise resulting from the contact between a roller and the track, having much more higher average bearing price than the self-lubricating oil bearing and being restricted within the adjustment technique of the linear assembly of a plurality of rollers are subject to be solved.
The commonly used products of DU un-oil bearings are developed by GLACIER METAL CO., LTD. and have been patented in the UK, Japan, USA, Canada, France, Italy, Germany, Switzerland, etc., (Japan Patent No. 223605 and No. 438282). DU un-oil bearings apply the technology of sintering bronze powder to produce sintered porous bronze parts on alloy steel and Teflon Lead mixture is filled on the surface thereof to form Teflon Lead thin film. Seeing that the surface of a bearing has low friction because of Teflon Lead, lubricating oil is not applied thereto; Teflon Lead enables a sintered bronze layer to be immersed in a thickness of 0.3mm, so that the bearing abrasion at the initial stage is about 0.01 mm, in addition, alloy steel is applied to ensure the necessary strength of immobility, size precision, stability and proper torque in tightening of a bearing. The products apply the manufacturing technology include ordinary sleeves, thrust ball bearings, flange sleeves, sliding plates, etc. With reference to the cross-sectional structural drawing of a product from the manufacturing technology in Figure 1, the technology allows the surface of alloy steel to be covered with a layer of copper base (bronze) powder in advance for sintering, thereby enabling the surface of alloy steel to form a porous layer, and then, Teflon Lead mixture is filled over the surface of alloy steel forming Teflon Lead thin film, so that the copper base (bronze) powder and particles become the Teflon Lead filling. The manufacturing technology is used for porous surface sintering taking the bonding of material and copper base (bronze) powder in high temperature into consideration, or the problems of layer segregation is easily generated, in addition, the temperature of copper base (bronze) powder sintering is around 7600 C., easily enables a thermal deformation on the alloy steel material. After Teflon Lead mixture is filled over the porous surface of alloy steel, the temperatue above 360 C. is required to make the filling of Teflon Lead and copper base (bronze) bonded, however, Teflon easily releases pernicious gases under high temperature manufacturing operation. Moreover, it is not a practicable way to enable micron-based motion pairs to have a 0.3 mm of sintering thickness and a 0.01 mm thickness of abrasion; in addition, it violates the regulation of having lead contained in raw materials for manufacturing information products in view of environment protection (by June 2006, nearly all products manufactured by VIA will be R0HS compliant in the EU countries).
SUMMARY OF THE INVENTION
In view of the forgoing, the objective of the invention is to provide a method of producing self-lubricating oil-bearing parts that possesses the characteristics of having a life-span similar to a roller bearing, low friction factor thereon (the friction factor of a commonly applied sleeve ranges from 0.15 to 0.30), wear-resisting, low noise, reducing the pollution resulting from lubricating grease and the manufacturing cost of a roller bearing, heightening the manufacturing technology of an un-oil bearing. Therefore, the invention enables the motion pairs to possess the characteristics of low friction factor, wear-resisting, high hardness, accuracy in size, lower manufacturing cost and heigher system capacity efficiency.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a cross-sectional structural drawing showing a conventional
DU un-oil bearing of a prior art;
Figure 2 isa manufacturing flowchart of the invention; Figure 3 is an enlarged perspective view showing powder sintering on the surface of a sintered workpiece according to the invention; Figure 4 is a perspective view showing the surface cladding of the invention after the adherence treatment; Figure 5 is a perspective view showing revolving motion pairs according to the invention; and Figure 6 is a perspective view showing the assembly of experimental fan revolving portion according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Further aspects, objects, and desirable features of the invention will be better understood from the detailed description and drawings that follow in which various embodiments of the disclosed invention are illustrated by
way of examples.
With reference to Figure 2, the invention directly applies copper base (bronze) alloy powder and particles that are produced by spray, those powder particles with different diameters (0.5 - 3Opm) are mixed with a plurality of micro-metallic alloy in certain proportions after a preliminary screening, and then a lubricator (e.g. graphite, stearic acid, etc.) is added in accordance with the manufacturing process requirement for sufficiently carrying out the mixed powder operation.
The mixed powder operation is carried out for the purpose of increasing the chemical and physical properties of evenly mixing raw materials; therefore, the theory of movement of particles enables a variety of granulations with different diameters to be well mied. Consequently, the factors of mixture speed and mixture mechanism have the influence on the degree of the mixed powder operation. Therefore, the mixed powder operation must be carried out according to the powder properties, such as the particle sizes, the spread diversity and specific gravity diversity, etc., so that the problem of layer segregation is able to be avoided. In view of the aforegoing characteristics, the invention applies a upright spiral type mixer with proper rotational speed (60 - 120 rpm) to enable the powder and particles to be evenly mixed.
The powder and particles that have been fully mixed during the mixed powder operation are filled inside a hollow mode of a press machine, subsequently, upper and botton punches and a middle mole are pressurized and extruded to enable the powder and particles to be formed, there is a relation between the pressure for shaping, the punch area and expected green density and the values are generated based on the analysis result concluded by the invention green test, so that the optimal green density should ultimately be above 7.9 - 8.0 g/cm3. If the green density value is lower than said standard, the follow-up manufacturing process and the stability of quality are impacted, even though the finished goods satisfies the original design requirement. Therefore, it is imperative to request the optimal forming density, in order to stabilize the product quality during the mass production and reduce the manufacturing cost.
The objective of using a lubricator during the shaping process is to facilitate the green mold release and reduce the pressure on mold release.
Generally, the lubrication method is divided into the following two ways.
One is to enable a dry lubricator and metallic powder to be fully mixed together and directly filled in a mold for being pressurized and shaped therein; the other is to apply lubrication to a mold surface, prior to the filling of metallic powder in the mold, by spreading or spraying a liquid lubricator that is easily dissolved in a volatile organic solvent on said mold surface and the surface of said punches. After said organic solvent is vaporized, a lubrication layer is formed on the surface of the mold and particles.
According to the experimental result of the invention, if electrolytic coppers alloy powder or powder with appropriate sizes are applied under appropriate shaping pressure, the density of shaping the green without any lubricator added in advance is able to be higher than 7.97 g/cm3, so as to meet the optimal density requirement of forming a green during the manufacturing process.
The formed green is sent to a sintering furnace for carrying out sintering in reduction atmosphere. Sintering is the extension of thermodynamics and the theory of diffusion for faciliting effective powder and particles controlling in the furnace atmosphere following the increase in temperature.
Consequently, the diffusion phenomenon of generating part of solid or liquid state enables the powder and particles to be bonded together. In general, the significant variables in the sintering process comprise time, temperature curve, the selection of furnace atmosphere, the gas flow rate, the time in high temperature and the furnace structure design, etc. To sum up, the foregoing factors are prerequisite, in order to ensure a successful sintering.
The three steps of carrying out sintering process are as follows in sequence: 1. preheat zone: for achieving the dewaxing and degreasing effects via thermal energy, at the same time, controlling particles not be deformed during dewaxing.
2. sintering zone: for facilitating the green densification after the dewaxing treatment in said preheat zone via higher temperature.
3. cooling zone: for controlling the cooling rate of sintered workpiece that is formed via the thermal treatment in high temperature in said sintering zone, so as to determine the metallic form and the property of a finished goods.
The dewaxing and degreasing processes should be carried out prior to any sintering, i.e., a proper preheat degreasing is the prerequisite for achieving a better sintering result. The setting of the preheat zone temperature is determined according to the lubricator type. For example, the frequently used Zinc Stearate is able to melt at the temperature degree of 1300 C., vaporize at 260 C. and completely remove at 427 C. The temperature in the preheat zone of the invention is set at 450 C., considering different lubricator charteristics, if the heating speed is too fast or the temperature is too high during the whole sintering process, part of the lubricator in the preheat zone is decomposed, owing to the chemical compound composition, so as to generate the carbon depositson the surface of a workpiece, in addition, easily enable the workpiece to be deformed or cracked. Therefore, it is vital to control the sintering speed. The experimental results of the invention show that a better sintered workpiece is able to be obtained by controlling the sintering speed at 45-55 mm/mm.
The sintering zone design is established based on the material properties, namely, different materials have to be sintered under different temperature, sintering atmosphere and air flow. During the sintering process, the invention has obtained the results from repeated experiments in continuous belt furnace that the optimal transition temperature in the preheat zone is set at 710 - 730 C., the optimal sintering zone temperature in the sintering zone is set at 800 5 C and the optimal time in sintering is controlled for 25 - 35 mm. As to the control of the sintering furnace atmosphere, the invention applies cracked ammonia gas to obtain the furnace gas by heating and decomposing ammonia, so that the sintering zone is suitable for meeting the requirement of sintering copper-based parts for its strong reduction without carburization.
The cooling zone design generally comprises a slow cooling part and a rapid cooling part. Said slow cooling part is to avoid the furnace from being deformed owing to a rapid temperature change in moving the mold from the sintering zone to said rapid cooling part. The rapid cooling design is to reduce the temperature of a sintered workpiece during a specific period of time, so that the workpiece is able to be properly moved or processed.
According to the experiment results of the invention, a sintered workpiece is able to be placed in the cooling zone for 30 minutes under said sintering speed.
Generally, a finished parts after being formed by sintering is slightly deformed, therefore, if the requirement of a workpiece precision is not high, said sintered workpiece is able to be under subsequent surface modifications and cladding treatment, on the other hand, if the size precision of a workpiece is required to be higher, a size precision adjustment process is then required to be carried out, prior to a subsequent cladding treatment.
Said sintered workpiece after the completion of the size precision adjustment process has the surface thereof carried out the thermal degreasing treatment and the invention carries out a prior cleaning or supersonic/ultrasonic degreasing treatment by selecting a proper lyophilic or acidity dissolving agent (solvent), based on different grease types, in order to degrease the surface of the workpiece, or the quality of the cladding surface thereof will be affected. Figure 3 shows the surface of a sintered workpiece according to the invention.
A product is treated under the surface cladding treatment after the completion of prior sintering and size precision processes by using the density of the surface of the powder and particles as the filling body in the subswquent processes.
Generally, adding a plurality of slurry that is made by micro and nanobased particles based on polytetrafluoroethylene into a normal electroless nickel plating, those particles are able to be evenly spreaded in composite electrolyte with an average diameters range from 90 to 500 nm and 3 - 10% of the the total quantity of composite electrolyte. After being evenly mixed by a power mixer, all particles in composite electrolyte are able to be evenly suspended based on the mixing speed, so as to obtain composite electrolyte composed by metallic nickel ions and nano particles.
Without continued applied voltage, metal ions that is coexisted in composite electrolyte with a reducing agent is reduced to metal in solid state on the surface of the solid body via a chemical reaction of autocatalysis, in addition mixed up with 15 - 30% of polytetrafluoroethylene superfine particles, thereby the solid metal is gradually accumulated on the surface of a solid body. Said reaction ia a response that the electron communication is not from an external conducting wire, but directly from a substance in electrolyte at the same time while it is reacted on said solid surface. Therefore, the temperature at 90L1 during the manufacturing process is required.
The manufacturing technology of the invention enables to obtain a complex cladding material combining the characteristics of hardness, wearresisting and low friction factor in integal, the average friction factor of the complex cladding material is 1/2 of Ni-P plating surface. Prior to the cladding treatment, all cleaning processes on the surface of the materials comprise surface activation treatments, surface modifications and respective water cleaning and activation processes must be truly completed, or the cladding quality will be seriously affected.
The composite electrolyte comprises: 1. metal ions: the source of metal cladding material.
2. reducing agent: for turning metal ions to metal.
3. catalyst: for catalyzing the the material surface.
4. complexing agent: for avoiding hydroxide from precipitating, adjusting precipitating rate, avoiding the plating bath from dissolution and stabilizing plating bath.
5. stabilizer: for absorbing particle impurities, avoiding plating bath from natural dissolution, in order to prolong the life-span of plating bath.
6. buffer: for controlling the pH value within a specific operation area.
7. wetting agent: for influencing the surface of material.
8. Dispersion: enabling superfine wear-resisting material to be evenly covered.
The reducing agent is usually Sodium Hypophosphite, PH value is to control the P quantity contained in cladding material. Generally, the PH value is higher with less P quantity contained, so that the cladding property is changed; a cladding layer with lower P quantity contained has poor corrosion-resisting ability than that with higher P quantity contained. If the P quantity contained is higher than 8%, the cladding is a non-magnetical layer.
If the surface cladding material of the invention has 6% of the P quantity contained and the volume of polytetrafluoroethylene reaches 30%, the color of surface cladding is close to black; if the surface cladding material of the invention has 9% of the P quantity contained and the volume of polytetrafluoroethylene reaches 20%, the surface of cladding colored bright grey; nevertheless, the overall efficacy of cladding show similar results from different experiments. The cladding hardness value of surface cladding that is colored close to black without being proceeded by thermal treatment is able to reach 280 - 380 VHN, subsequently, the cladding layer of a workpiece is placed under the temperature at 300 - 350 C. for high temperature baking for about 10 - 15 mm., the surface of cladding is treated under the densification process, after that, the post-baking process has an obvious influence on the cladding structure.
The component after being treated by the process of densification is under ultrasonic cleaning for about 2 - 5 mm., depending on the precision levels required, in order to remove the particles that cannot be cladded on the surface of the material during the post stage of the electrochemistry reaction. Therefore, the particles that are not stabilized attached on the surface at the initial stage peel off, the change in size and the cladding thickness are controlled within the range of 6 - 12 pm. Consequently, the invention has considerably high control in size precision of manufactured products. Figure 4 shows the status of the product surface after being treated via surface cladding densification.
Experimental Results Consequently, the experimental results of the higheffect surface cladding manufacturing method of motion pairs system of the invention achieves the characteristics of low friction factor, wearresisting, high hardness, precision in size, lower manufacturing cost and heigher system capaPcity efficiency, at the same time, the abrasion of surface cladding at the initial stage is about 0.1 - 0.2 pm.
The basic physical and chemical properties of said product of the invention are as follows: 1. The temperature ranges from -30 to 200 C. 2. Protected by the inertia layer for resisting general chemical and oxidization and corrosion functions.
3. lower friction factor; the abrasion after an experiment on cooling fan test for operating 30 is almost not occurred; the abrasion after continuous operating for 250 days is <1 pm under a small amount of lubricating oil.
4. tensile strength on the surface of a machine reaches 200K gf/cm2.
5. The value of thermal conductivity coefficient is around 0.5, the thermal expansion coefficient is at 5 - 10/0 C. via controlling the composition of the material.
6. Even thickness is generated without peeling off after surface modifications, so that the product precision under long term operation is able to be maintained.
7. densification resulting in non-porous surface.
Meanwhile, the invention applies the technology to revolving bearings of a DC fan as shown in Figures 5 and 6. According to actual on-line test results, it is found that the MTBF value exceeds 50,000 hours and the test report is attached as shown in Appendix I for reference. The lifespan of the invention is similar to that of a widely applied roller bearing on the market, in addition, if the invention applies to straight- line motion pairs the same effects will be generated.
Conclusion and Discussion
A product that is made by the technology of the invention is able to directly use those powder and particles on the surface of copper-tin base parts to be the tetrafluoroethylene macromolecule fillings, so that the invention possesses the characteristics of wear-resisting and high hardness, low friction factor, precision in size, lower manufacturing cost and heigher system capacity efficiency, so that the invention is able to be efficiently applied to a sliding pairs system for straight- line motion and revolving motion, moreover, the invention provides a better technology than a prior arton the precision of the manufacturing process.
Simultaneously, if the metal is treated by metallic cutting under prepowder metallurgy, as long as the invention is able to properly control the roughness value (Ra value around 0.6 - 0.8) on the surface of materials, the cross-sectional side and the change in roughness on the surface of the materials as appropriate are able to be used as the filling under the post-manufacturing processes and the materials still possess the physical and chemical properties resulting from the manufacturing process, nevertheless, the manufacturing cost is higher than said powder metallurgy process. Consequently, to pursue high quality of products with lower manufacturing cost, the manufacturing technology of the invention is one method that is able to meet the requirement in the industrial sector.
New characteristics and advantages of the invention covered by this document have been set forth in the foregoing description. It is to be expressly understood, however, that the drawings are for the purpose of illustration only and are not intended as a definition of the limits of the invention. Changes in methods, shapes, structures or devices may be made in details without exceeding the scope of the invention by those who are skilled in the art. The scope of the invention is, of course, defined in the language in which the appended claims are expressed.
Claims (7)
- WHAT IS CLAIMED IS: 1. A high-effect surface cladding manufacturing methodof motion pairs system, comprising the following steps: Directly applying copper base (bronze) alloy powder and particles that are produced by spray for preliminary screening; Mixing those powder particles with different diameters with a plurality of micro-metallic alloy in certain proportions and adding a lubricator in accordance with the manufacturing process requirement; Carrying out sufficient mixed powder operation; Filling those powder and particles that have been fully mixed during the mixed powder operation inside a hollow mode of a press machine, subsequently, upper and botton punches and a middle mole are pressurized and extruded to enable the powder and particles to be formed; Having a relation between the pressure for shaping, the punch area and expected green density value for carrying out a green test; Sending the shaped green into a sintering furnace for carrying out sintering in reduction atmosphere; Directly carrying out subsequent surface modifications and cladding treatments on the sintered product, and then, carrying out the size precision process; Carrying out thermal degreasing treatment on the surface of the material, based on the grease types by selecting a proper lyophilic or acidity dissolving agent (solvent) for carrying out a prior cleaning or supersonic/ultrasonic degreasing treatment, in order to degrease the surface of the workpiece; Carrying the mixing, exhausting and filtering processes under the room temperature and evenly mixing the particles with a power mixer; Carrying out the surface activation treatments, surface modifications and respective water cleaning and activation processes; Placing the cladding layer of a workpiece under the temperature for high temperature baking applying cladding material hardness without being proceeded by thermal treatment, enabling the surface cladding to proceed further densification process; and Carrying out ultrasonic cleaning of the component after being treated by the process of densification, depending on the precision levels required, in order to remove the particles that are unable to be cladded on the surface of the material during the post stage of the electrochemistry reaction.
- 2. The high-effect surface cladding manufacturing method of motion pairs system of claim 1, wherein the mixed powder operation applies a upright spiral type mixer to evenly mix those particles at the rotation speed of 60-120 rpm.
- 3. The high-effect surface cladding manufacturing method of motion pairs system of claim 1, wherein the green test has the ultimate green density thereof remains above 7.9-8.0 g/cm3.
- 4. The high-effect surface cladding manufacturing method of motion pairs system of claim 1, wherein the cladding material hardness without being proceeded by thermal treatment is able to reach 280-380 VHN, subsequently, the cladding layer of a workpiece is placed under the temperature at 300 3500 C. for high temperature baking about 10 - 15 mm.
- 5. The high-effect surface cladding manufacturing method of motion pairs system of claim 1, wherein the component after being treated by the process of densification is under ultrasonic cleaning for about 2 - 5 mm.
- 6. A method as claimed in Claim I and substantially as hereinbefore described.
- 7. Articles made by the method claimed in any one of the preceding claims.gpr5.Jnc__ EHILHIVETTE (BY!) LTD FAN TEST AFTER MTBF(36Hrs)I Date: 2004/10/20 20:00 1odeI:A4010MM12S-N Test date of start: 10/18 8:00AM Finished date: 10/20 20:00 - DC FAN Q'TY: 100 PCS Code: 1---22 Production:.On-lineMateriaI changenR&I) nCustomernECN nforniation MTBF TARGET:50,000HRS, FORECAST:RUNNED CONTINUOUSLY i'OR 36HRS AT75190%RH. TestTemperature: 75 ri Humidity:90 % Voltage 12 VDC Current.0.09A(MAX) *Speed ELocked conditions Test Record Speed Start Dead Noise Leakage Current Vibration Plastic LED Date NO 5000 10% Voltage angle test oil Remark 9OmA deform Light _______ (RPM) 6 VI)C 0/20 1 83 4837 0:00 2 83 4835 3 86 4829 4 82 4836 83 4848 6 82 4837 7 83 4829 8 82 4836 9 83 4836 83 4819 II 86 4836 12 82 4835 13 82 4829 14 86 4837 83 4829 16 82 4836 17 82 4830 18 83 4848 19 82 4848 82 4848 21 83 4829 22 82 4831 good 0 weak defect fl defect Inspector: Tom kang Check by: Fu-Shi Huarig - 2< r-JLIjr-J VETTE(BVI)LTDFAN TEST AFTERMTB F(3 6Hrs)J Date: 2004/10/20 20:00 4odel:A4OIOMMI2S-N Test date of start: 10/18 8:00AM Finished date* 10/20 20:00 DC FAN Q'TY: 100 PCS Code: 23----62 Production:.On-linenMaterial changenR&DnCustomernECN nformation MTBF 1ARGET:50,000HR5 FORECAST: RUNNEI) CONTINUOUSLY FOR 361IRS AT75, 190%R11. Test* Temperature:75[ Humidity9o % Voltage 12V[)C Current:0.09A(MAX) *Speed ELocked conditions Test ecord Speed Start * Dead Noise Leakage Current Vibration Plastic LED Date NO 5000 1(1% Voltage angle test oil Remark 9OmA deform Light ____ _____ (RPM) 6 VDC 10/20 23 83 4837 20:00 24 82 4836 83 4837 26 82 4835 27 83 4829 28 82 4830 29 86 4848 _____ 30 82 4832 _____ 31 82 4838 _____ 32 83 4829 _____ 33 83 4837 34 86 4819 83 4837 _____ 36 82 3235 37 83 4829 _____ 38 82 4836 _____ 39 83 4837 82 4829 _____ 41 83 4829 42 83 4831 iod 0 weak defect H defect Inspector: Tom kang Check by: Fu-Shi Iluang VETTE (BVI) LTDFAN TEST AFTERMTB F(3 6Hrs)J Date: 2004/10/20 20:00 lodel:A4OIOMMI2S-N - Test date of start: 10/20 8:00AM Finished date:10/20 2000 DC FAN Q'TY: 100 PCS Code: 43 63 Production:.On-lineoMaterial changenR&DECustomernECN nformation MTBF 1ARGET:50,000HRS, FORECAST:RIJNNED CONTINUOUSLY FOR 36HRS A'1'75[H90%R1 I. Test Temperature:75 H Hurnidity9o % Voltage I2VDC Current:0.09A(MAX) *Speed nLocked conditions Test cRgcord Speed Start Dead Noise Leakage Current Vibration Plastic LED Date NO 5000+10% Voltage angle test oil Remark 9OmA deform Light _____ (RPM) 6 VDC 0/20 43 83 4826 0:00 46 82 4829 83 4838 46 82 4848 - - 47 83 4837 48 82 4831 49 83 4829 82 4829 51 82 4848 52 82 4837 53 83 4848 54 82 4829 86 4836 56 82 4831 57 83 4848 58 82 4836 59 82 4829 83 4835 - 82 4831 _____________________ 62 82 4819 63 82 4829 ______ _______ _______ _____________________ "good 0 weak defect ri defect Inspector: Tom kang Check by. FuShi_uiianJ VETTE(BVI)LTD FAN TEST AFTER MTBF(36Hrs) Date: 2004/10/20 20:00 Model:A4OIOMMI2S-N Test date of start: 10/18 8:00AM Finished date: 10/20 20:00 DC FAN Q'TY: 100 PCS Code: 64---84 Production:.On-lineoMaterial changenR&DnCustomerEECN Information MTBF TARGET:50,000HRS, FORECAST:RUNNED CONTINUOUSLY FOR 36HRS A'I75P90%RF1. TestTemperature:75r] Humidity9O % Voltage I2VDC Current 0 09A(MAX) *Speed nLocked conditions Test cRecor6 Speed Start Dead Noise Leakage Current Vibration Plastic LED Date NO 5000+10% Voltage angle test oil Remark 9OmA deform Light ______ (RPM) 6VDC 10/20 64 81 4832 ______________________ 20:00 65 82 4836 66 83 4835 _______ ______________________ 67 81 4848 ____________________ 68 82 4835 _____ _______ _____ _____ _______ _______ ______________________ 69 82 4837 83 4829 _______________________ 71 82 4848 ______ ______ ______________________ 72 82 4835 _____ _______ _____ _____ _______ _______ _______________________ 73 86 4831 ___________________ 74 82 4848 _______________________ 82 4832 _____ _____ _______ _______ _______________________ 76 82 4831 ______ ______ _____________________ 77 83 4826 _______ ______________________ 78 83 4829 ______ _______ _______________________ 79 82 4831 ______ ___________________ 86 4829 _______ _______________________ 81 82 4836 ______________________ 82 83 4830 _______ _______ ________________________ 83 82 4829 _______ _______ _______________________ 84 82 4848 _____ _______ _______ _______________________ good o weak defect defect Inspector: Tom kang Check by: Fu-Shi Huang VETTE (BY!) LTDFAN TEST AFTER IMTB F(3 6Hrs)I Date: 2004/10/20 20:00 lodel:A40IOMMI2S-N Test date ofstart: 10/18 8:00AM Finished date:10/20 20:00 )C FAN Q'TY: 100 PCS Code: 85---100 Production:.On- linecMateriaichangenR&DnCustomeroECN formation MTBF TARGET:50,000HRS, FORECAST: RUNNED CONTINUOuSLY FOR 36 HRS AT75:90%RH. TestTemperature:75 fl Hurnidity:90 % Voltage I 2V1)C Currcnt:O 09A(MAX) . Speed ELocked cond it ions Test cRecord Speed Start Dead Noise Leakage Current Vibration Plastic LED Date NO 5000+10% Voltage angle test oil Remark 900mA deform Light (RPM) 6VDC 0/20 85 83 4829 0:00 86 82 4832 87 82 4836 88 82 4832 ______ _____ _____ _____ _______ _______ _________________________ _____ 89 83 4838 86 4829 91 82 4838 92 82 4832 93 82 4826 94 83 4838 82 4829 96 83 4838 97 82 4836 98 82 4835 99 83 4825 83 4831 ood 0 weak defect [1 defect Inspector. Tom kang Check by. Fu-Shi Iluang
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JP (1) | JP2006225762A (en) |
KR (1) | KR20060086873A (en) |
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CN106217912B (en) * | 2016-09-26 | 2018-03-23 | 佛山慧氟高分子材料有限公司 | A kind of production technology of LCD liquid crystal displays module binding Teflon film |
Citations (3)
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GB2050429A (en) * | 1979-06-05 | 1981-01-07 | Hitachi Powdered Metals | Method of producing bronze-based sintered bearing material |
US6042778A (en) * | 1996-12-14 | 2000-03-28 | Federal-Mogul Deva Gmbh | Sliding bearing and method of making a sliding bearing material |
US6132486A (en) * | 1998-11-09 | 2000-10-17 | Symmco, Inc. | Powdered metal admixture and process |
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JP2512477B2 (en) * | 1987-06-17 | 1996-07-03 | 大豊工業株式会社 | Copper-based sliding material |
US4830889A (en) * | 1987-09-21 | 1989-05-16 | Wear-Cote International, Inc. | Co-deposition of fluorinated carbon with electroless nickel |
DE3838461A1 (en) * | 1988-11-12 | 1990-05-23 | Krebsoege Gmbh Sintermetall | POWDER METALLURGICAL MATERIAL BASED ON COPPER AND ITS USE |
GB9114291D0 (en) * | 1991-07-02 | 1991-08-21 | Johnson Electric Sa | A sheet metal bearing for an electric motor |
-
2005
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2006
- 2006-01-23 AU AU2006200273A patent/AU2006200273A1/en not_active Abandoned
- 2006-01-25 KR KR1020060007973A patent/KR20060086873A/en not_active Application Discontinuation
- 2006-01-26 DE DE102006003823A patent/DE102006003823A1/en not_active Withdrawn
- 2006-01-27 GB GB0601645A patent/GB2423306A/en not_active Withdrawn
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GB2050429A (en) * | 1979-06-05 | 1981-01-07 | Hitachi Powdered Metals | Method of producing bronze-based sintered bearing material |
US6042778A (en) * | 1996-12-14 | 2000-03-28 | Federal-Mogul Deva Gmbh | Sliding bearing and method of making a sliding bearing material |
US6132486A (en) * | 1998-11-09 | 2000-10-17 | Symmco, Inc. | Powdered metal admixture and process |
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JP2006225762A (en) | 2006-08-31 |
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KR20060086873A (en) | 2006-08-01 |
US20080138231A1 (en) | 2008-06-12 |
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TWI312016B (en) | 2009-07-11 |
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