Compound film studies accept rice diamond

Two paragraphs of adsorption that ｉ of ｍ of ｌ of ｅ of ｉ of ｌ of G ｕ ｇ put forward 1972 are academic. The model that ｉ of ｍ of ｅ of ｉ of ｌ of G ｕ ｇ offers thinks, the atomic surface in plating fluid is surrounded for ionic place, after arriving at cathode surface, above all inattentive ground is adsorptive (weak adsorption) at cathode surface, this is physisorption, it is reversible process. Next, undertake as what electrode reacts, one part weak adsorption the ion at atomic surface by reductive, particle and cathode produce strong adsorption, this is not reversible process, particle enters cathode surface stage by stage, then by deposit metallic place embedded. This model maths processing to weak adsorptive measure uses adsorption of ｒ of ｉ of ｕ of ｍ of ｇ of L ａ ｎ the form of isothermal type. To strong adsorptive move, think atomic strong adsorptive rate and enclothe degree of electric field with electrode and solution interface adsorptively to concern infirmly. The research wearability such as Wang Senlin nickel diamond is compound of film in all deposit process, result surface: ? ? diamond in all the model of two paces adsorption that deposit mechanism accords with ｉ of ｍ of ｌ of ｅ of ｉ of ｌ of G ｕ ｇ , its speed controls measure to be strong adsorptive move. So far, new technology of compound electrodeposit and other, new technology is same, practice goes in front of academic aloof, the research of its mechanism is in ceaseless development. The preparation of compound film reachs diamond application 2.

Plating of chemistry of diamond of 1 chemical and compound plating is to increase electric current nothing more than, the metallic deposit process that controls chemical and reductive law to undertake in the classics below the catalysis of metallic surface. Join in plating fluid not dissolve sex is atomic, make with the metal in all deposit, can get compound film. Chemical and compound plating does not want power source and auxiliary positive pole, do not suffer the effect of base material appearance, can be in each place of material is even and deposit, film is compact hardness is tall, and self-lubricating hear resistance, corrosion resistance and gender, special adornment sex. There is wide application in the respect such as aviation, mechanical, chemical industry, metallurgy and nuclear industry. The property of film of nickel of compound and chemical plating as choose atomic sort to differ and different. Diamond has a variety of kinds, can you divide roughly for two kinds of: ? ゾ Ш sends father of ticket of V of А of crack with teeth in mouth leg of noise of  of account of egret of admire of Mei of ∮ of  of Chun Ximu fine [shaming Chun Ximu is catfish mire scandium billabong uses up  of account of egret of 5 ゾ Ы suddenly to inspect ズ of rotten Zi heart rapid ハ ? because its surface feature is. Diamond file and emery wheel is to use compound film to regard a function as the face, yi Cai uses diamond of natural single crystal. The composite material of wear-resisting cannot contain single crystal diamond, because of its rough surface is easy wear away conjugate face, use explosive legal person to build much brilliant diamond commonly. Chemical plating nickel - diamond composite material has much brilliant to good appearance defends and fight abrade function. The chemical plating nickel of layer - diamond can raise nickel chromium to eletroplate as intermediate layer the sex fighting corrupt of deposit, it is the chemical plating that the earliest plating makes one of composite material, this kind of film basically uses Yu Kang to grind now. Watch 1 it is machine of experiment of ｒ of ｅ of T ａ ｂ determine result of diamond film wearability [6] , relatively reference standard hard chromium is 4 times taller, also excel tool steel and hard alloy. Home has many scholars to had studied chemical and aureate firm Shi Fu to combine film. Wu Yu Cheng [7] considers to make clear diamond grain is joined in solution of deposit of nickel phosphor alloy (average size) of 14 μ ｍ , OK and apparent aggrandizement film, improve wear-resisting performance. Wang Zheng [8] considers to show diamond is compound film besides hardness tall, wearability is good besides, still have admirable thermal conductivity and be able to bear or endure corrupt sex, because this can improve the service life of casting model mould and cold working mould substantially. The research such as Zhang Xinyi shows heat treatment technology is right diamond of N ｉ P (<1 μ ｍ ) the influence of structure of chemical and compound film and function, research shows compound film has feature of the condition that be not brilliant in plating condition, film begins brilliant to change in 300 ℃ , in 200 ℃ ～ 400 ℃ film has good wear-resisting performance. 2.

2 compound report plating diamond originallies diamond with eletroplating method the knot gets diamond in metallic film compound film. In real work, metallic film has the effect of bond, diamond has main effect. Our country diamond eletroplates goods is provide one case with colophony bond and stone mill of bronze bond King Kong, at 60 time development rises. Developed all sorts of blame gradually later abrasive tool. Already formed more mature craft now. Diamond eletroplates products appears wide already application to be in industry of electron of machining course of study, electric equipment, optical glass industry, geology drills industry, construction industry, arts and crafts and commodity industry. Having the effect that cannot replace. Aureate firm Shi Fu closes report the film application in new field also is the heat that studies now. Wait at exchequer] research shows workmanship of diamond of compound brush plating is simple, gotten film hardness wearability is good, have wide industrial application perspective. Yu Huokun] the function of compound to silver radical diamond film undertook study, its consider to show content of the diamond in compound film is higher, bead way is smaller, its wear rate is minorrer, the effect when osculatory electric current is bigger is more apparent, the service life that improved osculatory head thereby reachs his to be able to bear or endure to contact voltaic ability greatly. Li Yundong put forward a kind can very good get used to report the cobaltic manganese of new-style film nickel that plating diamond tool asks film of 3 yuan of alloy. Study the result makes clear, film of 3 yuan of alloy has nickel cobaltic manganese the integrated and mechanical performance with nickel manganese more cobaltic than nickel or higher film and low much cobaltic content, more apply to production report plating diamond tool, it is one kind has those who develop a future to replace film newlier. Wang Wei scrape in be aimed at gear cutting of hard tooth flank, the treatment such as grinding puts the issue that be in in the method, put forward to use diamond film worm on gear-hobbing machine top gem annulus is compulsive the new method of honing hard tooth flank. The result shows quality of tool treatment surface is good, treatment efficiency is tall. Zhou Zhenjun diamond compound plating applies flexible grind on, the result shows compound film rose to grind a life and grinding efficiency. In addition, the gradient function material of the tall hardness that makes with compound plating law, had succeeded like N ｉ diamond, C ｏ diamond got applied in aerospace domain. 2.

Diamond of rice of accept of 3 compound plating is compound plating is inchoate added diamond is micron class mostly. What study as accept rice material and accept rice technology is ceaseless and thorough, introduce the diamond particle of accept rice class in compound film to already made the new trend that compound plating develops. Accept rice diamond is had exceed corpuscular general quality, wait like bulk effect, surface effect and effect of small size quanta. At the same time it still has the general quality of diamond, if tall hardness, tall thermal conductivity, high stretch standard is measured, tall wearability, small specific heat capacity and wonderful chemical stability. In recent years, each country of Russia, west considers to develop product of industry of accept rice diamond eagerly, mix in colophony of compound film, abrade, polish, lubricant, high strenth the domain such as balata received wide application, our country also has much home unit to pursue the research of this respect. Accept rice diamond has both the double character that exceeds hard data and accept rice grain. Have decrease grind wear-resisting, self-lubricating quality, the respect waits in cutting tool, abrade, compound plating, lubricant, attrition, can have wide application. Spend the surface to machine the character that waits for diamond of respect accept rice to have other material to cannot be likened to with cutting tool subtly to accurate instrument, Gao Guangjie especially. Watch 2 listed the comparative data of the term of service of spare parts of film of diamond of rice of accept having chromium and method of common case hardening. In addition, accept rice is compound plating also has development outlook greatly in electric contact material. The grain of diamond of use accept rice such as Wu Yuankang will enhance silver radical film, lowered electric wear rate, the service life that improved report to touch a head and be able to bear or endure the ability of intensity of big electric current. The domestic research in this domain still starts in exploration level. Consider and use its investment what accelerate this respect as soon as possible, mix to national defence no matter civil have important sense. The main problem that in studying now, exists has: (Diamond of 1) accept rice disperses mediumly in plating fluid. Diamond of accept rice class pink is main now it is by explosion legal system is had. Average bead diameter 10 ｎ of 4 ～ ｍ . Compound eletroplate the requirement disperses diamond pink equably in plating fluid, the definition that divides department of prose style free from parallelism according to colloid (radius is) of ｍ of 10-7 of 10 9 ～ , right now plating fluid should divide prose style free from parallelism to fasten for colloid. The structure of group of the rubber in sol is relatively complex, arrive from true solution sol is transcend small inhomogenous posture to what begin to have phase boundary side from homogeneous phase, and the grain as a result of dispersive photograph is little, exterior accumulating is big, its face can be fast also, this makes micelle is in not steady state, they have agglomerate each other rise become bigger particle and get together heavy trend. The plating fluid that the experiment makes clear to mix into has diamond small white its reunite the case is severe, and in gotten film, diamond of accept rice class pink reunites the case is very severe also, this affected accept rice diamond greatly pink is applying mediumly actually. (2) assigns the option of powder and dispersive method. Because Namijin is firm,stone pink produces particle extremely easily in plating fluid to reunite, affect its to apply the result actually. Accordingly, be in powdery body dispersedly medium (plating fluid) in make tall stability, the suspension of low viscosity appears particularly important. Diamond is in plating fluid some reunite is the bond that goes up by physics (like Fan Dehua force) those who cause, call soft reunite; is the bond that goes up by chemistry a little (if hydrogen bolts) those who cause reunite, call hard reunite. Open soft reuniting method has a variety of, like: ?  arrives ⒌ of childish of ǚ of  of  of ⒊ of treasure of ripples of Qian of  of ⑵ of treasure of ripples of  of handkerchief of ripples treasure ⒋ takes? of bang of 6 miscellaneous planning eat to divide outside using afore-mentioned methods, the bond type that still must be aimed at them undertakes special processing. Should solve accept rice diamond pink the dispersive problem in plating fluid, the surface that the most effective method is pair of pink body undertakes exterior modified is handled. Among them the design of the choice of exterior activator and dispersive method is attached most importance to especially should. Existing data makes clear, anion surface activator (if 12 alkyl are vitriolic sodium) but better raise accept rice diamond pink the content in film. But the result is not satisfactory still. To raise the content of diamond of rice of the accept in compound film, the plating Fu technology that still needs to consider to differ further and fumble effective exterior activator. Plating is compound technology of accept rice diamond 1, plating is compound plating of technology of accept rice diamond is compound technology of accept rice diamond, it is the newest craft of surface of workpiece of metal of the aggrandizement below normal temperature condition, can raise film significantly microscopical hardness, raise accept rice diamond in film osmotic with compact sex, enhance workpiece fight wear away ability, and, this method is special to be being done not have by treatment workpiece requirement, won't produce undesirable effect to workpiece, applied range is wide. Technology of diamond of compound accept rice can apply plating extensively at the cutting tool measure of machining, mould, bearing, cylinder bushing, and disk, electron receives plug-in unit, apply to each industries such as mechanical, electron, car, oil, exploration and medical treatment, war industry to be opposite the requirement of surface of aggrandizement metal workpiece. 2, technical index 1) fluid of in suspension of water of exterior deep gray 2) ≥ of the quantity that contain carbon 86.

2% 3) suspension fluid PH is worth 5 4) ash content ≤ 2.

5% 5) rice of accept of average size 4-6 6) the area that compare a list 300 ± 30 M2/g 3, add methodological plating firm stone technology can be in compound Namijin standard plating chromium presses common craft parameter on technological equipment can come true: accept rice diamond fluid of water in suspension presses certain proportion to join electrolyte in, undertake dispersing equably to assure, still need to undertake to process of whole and chemical plating ultrasonic disperses, have magnetic force or mechanical mix at the same time, make even in suspension is in diamond pink in plating fluid, in joining manufacturing plating chamfer next and after mix is even, can undertake compound eletroplate production. Eletroplate the accept rice diamond that in producing a course, goes out along with work area is reclaiming can make its precipitate in groove, undertake reclaiming using. 4, product function, microscopical hardness is tall, can amount to Hv 1000-1400; , wearability raises 3-5 times, service life rises 1.

5-4 times; , the adhesion of film and matrix raises 30-40% ; , covering power is strong, film is even, flowing, meticulous; 5, economic benefits 1) , reduce thickness of plating chromic layer, managing chromium anhydride 2) , reduce electric energy to use up 3) , voltaic efficiency is tall, deposition rate is rapid 4) , raise n 6, the film of 1 square metre that diamond of rice of use scale accept is 1 micron in the ply of chroma 5-20 Kg/m3 in electrolyte uses up diamond 0.

The plating level of ply of producible 5-10 micron accumulates diamond of 1 gram 1kg compound film develops diamond of 1000-2000 M2 last word up to now, already obtained great progress, received wide application in a lot of domains. As the further development of research, believe to will obtain greater progress, in order to satisfy the need that industry admits. CNC Milling CNC Machining