In the use of diamond axiom blades, diamond utilization is relatively low, this is because the head diamond is not wear failure, but a enormous loss in shedding form.
The effect of binder on diamond
Traditional manufacturing diamondsegment is rely on cardigan handle on the diamond to firm diamond, When the casingwear to the diamond is too much exposure, the diamond consign be falling off ontheir own
To rectify the imperative pressure of the wrapper andthe diamond is the most effective specialized measures to flee diamond earlyloss Unfortunately diamond and jacket is strenuous to connect, the moreeffective specialized measures is plated titanium, nickel and other metals on thediamond surface, in directive to gain the effective mixture of diamond and casing
Traditional wrap powder is made of asimple genuine metal powder or mixture powder, these metalseither non-wetting of the diamond, or not wettability at the sinteringtemperature of the diamond On the research, in traditional copper brew powderadded chromium powder, titanium powder, vanadium powder, zirconium powder, nickel powder, manganese powderand other metal powder to form a pre-alloy powder, pre-alloy powder containingthe active elements of wetting the diamond, during the diamond sinteringprocess, the active slant common diffusion with diamond, finish brazeconnection jacket and the diamond
The theatrical diamond tip wrapper is usuallyconstituted by two components of the skeleton component and a binder, generallyselected gigantic melting point, colossal skin resistance, high force metalskeleton material, choose a gang of low melting speck metal to be used asbinder. In the selection of a binder, due to the low firmness of commonly usedlow-melting metal (Sn, Zn, etc) is juicy to be oxidized, and practicable enrichment,its action is not good, silver, copper and other metals can be overcomethe above drawbacks, but higher melting speck or emolument ration their use
In the specialized mixing of the powdersintering casing, exists at the tip of the diamond are connected together bymechanical packet imbed and gripping role with the carcass, the diamond andmatrix connection is a specialist connection The sintering of metal bindingagent wrap already has a certain density and a relatively lanky strength,hardness, toughness, and furthermore has a supplementary achieve practical mosaic engender on theparcel diamond
Binding agent should keep two basicfunctions: First, connected the wear-resistant akin into the grid skeletonholding diamond; second, with diamond wear and abrasion, make the diamondnormal shelf In addition, the binding agent not only retain a certaindegree of hardness, toughness and wear resistance, If retain a certain subtlety ofwettability on the diamond consign greatly rectify the diamond sill height,thereby improving the feat of the use of the diamond tool.
The behalf performance of the obligatory agent,that is in diamond, carcass materials, porosity, manufactured using variousconditions to determine the circumstances, can be formed sufficiently stable casing;while using casing own a renovate preserve synchronous wear or gambol ahead wear withdiamond, make the diamond flawless play and reasonable wear, falling off
Use diamond surface active elements platingis a manageable technical solution Active element is a strong carbide formingelements and transition elements, these elements can eventuate interfacial reactionto originate compounds, make the diamond surface covered with a layer ofeasy-to-bound metal carcass metal, this metal layer can be brazed together withfetal metal The natural active elements posses titanium, chromium, tungsten andother elements; Although molybdenum, vanadium, zirconium, niobium, tantalum canalso befall the carbonization, but the payment is gigantic without being applied; otherelements cobalt, nickel, manganese, silicon, aluminum under certain conditions alsocan be formed carbides, carbides is respectively: Co2C, Ni3C,Mn3C, SiC, Al4C3. Currently, the most normal applicationis titanium, nickel-plated.