Ti1

Do the addition of type cutting craft and demand of horniness material cutting as high speed, also increase subsequently to the demand of cutting cutting tool. This kind of material includes makings of bucking of high strenth steel, casting and the high strenth alloy that are used at car and aviation project material. When cutting of high speed of cutting cutting tool, the temperature of cutting blade can exceed 1000 ℃ , accordingly, contemporary wear-resisting coating should have high strenth and tall tenacity not only, have even fight oxidisability and chemical laziness goodly, the wear-resisting coating with more significant development is imperative. In a few years of in the past, face heart is cubic (Fcc) the standard coating that structural Ti1-xAlxN has made wear-resisting application field. Because it is a kind of relatively stable material, because this can pass temperature only,relatively inferior PVD craft undertakes coating is produced. But, PVD means is confined to aluminous content X=0.

The face heart of 67 is cubic (Fcc) the deposit of structural Ti1-xAlxN, accordingly its fight oxidation function finite. To add the aluminous content of this kind of coating, ishikawa island sowed company of heart of state of the favour that grind love to develop the CVD technology that new industrialized scale manufactures. This kind of technology can be used at the deposit of coating of Ti1-xAlxN of high aluminous content, the chemical and metric coefficient of its coating is as high as X=0.

91, and be structure of face heart cubic metre. Another give typical examples shows, ti1-xAlxN coating has X=0.

The high aluminous content of 83, almost complete by " Fcc-TiAlN " cubic photograph is formed, this one coating has the tall hardness that makes an appointment with 29GPa below room temperature condition value and - the medium remains of 3GPa presses stress. Ti1-xAlxN cubic metre can be only inside a kind of specific suitable scope have production, for example temperature under 850 ℃ when, use low pressure and use specific proportional AlCl3/TiCl4. Proportion is too small, meeting occurrence TiN is deposit; Scale is exorbitant, can be in construction of fine zinc mine occurrence AlN deposit. Become normally temperature prep above when 850 ℃ , tiN and AlN are met at the same time deposit, the hardness that the 2 photographs particle of these high content will cause coating, fight oxidation function and wear-resisting function to reduce. AlCl3 and TiCl4 are used as original material, before flowing into CVD reactor, tiCl4 liquid evaporates, alCl3 former generate, additional NH3 regards nitrogen as the source. For this, ishikawa island sows company of heart of state of the favour that grind love to develop a kind of special NH3 pattern, in order to make before body is supplied become a possibility. To realize the industrialized dimensions production of this craft, be about to mix to gas, dispatching system and program of specific tool to load undertake optimizing. Another craft characteristic is to adopt low-pressure requirement, this is face heart cubic metre (Fcc) the advantage that when structural Ti1-xAlxN is formed, needs. For this, ishikawa island sowed development of company of heart of state of the favour that grind love to give a kind of special system that take use, this system can be used at CVD coating facility running below circumstance of pressure of 10mbar left and right sides. CNC Milling