1. introduction
Exceed strong cutting tool head the cutting tool that if show with diamond or cubic metre nitrogen changes boron,makes for the data, the more data that uses at present has: Single crystal diamond, PCD gets together all brilliant diamond, CBN, PCBN is compound piece these 4 kinds. Exceed vacuum of strong cutting tool to solder to point to namely heat below vacuum condition finish super- between matrix of strong cutting tool and knife head movement of drill rod solder. With flame brazing, solder of drill rod of high frequency induction is same, vacuum solders after all the purpose also is to let the solder of melt be below the action of Mao Xi straw, even flow arrives next to each place of welding line had better solder action. Exceed commodity of strong cutting tool to choose appropriate solder about what appropriate vacuum solders so, undertake appropriate solder pre-treatment, choose solder well and truly technical talent makes full use of the advantage that vacuum solders, assure to exceed the performance of function of commodity of strong cutting tool.
2 appropriate vacuum solder exceed commodity of strong cutting tool
Because cutting tool commodity places demand general to heat in vacuum environment,vacuum solders, all the chamber of a stove or furnace can arrive solder temperature, the measure of cutting tool merchandise that so demand vacuum solders cannot too big, be necessary to be able to be put into the chamber of a stove or furnace. Data of a cutting tool (matrix adds bit) be necessary to bear solder the temperature of the process alters and itself function does not happen alter. Cutting tool produces manufacturer is sought produce high power, see consequently: Vacuum solders the technology is particularly proper the measure that large quantities of quantities produce is lesser and can of all be heated exceed series of strong cutting tool (1) seeing a picture, improper measure can bear to heat partly only probably greatly relatively exceed commodity of strong cutting tool solder treatment.
3 exceed vacuum of strong cutting tool to solder choice of drill rod makings
See more exceed raw material of strong cutting tool to have: Diamond of ① single crystal PCD of; ② gets together brilliant diamond PCBN of ④ of CBN; of collectivity of; ③ is compound piece. They are having respective demand to the choice of solder:
(④ of 1) ② contains a lot ofgasket of a hard alloy, the drill rod makings that chooses an usual practice can undertake soldering (the silver-colored solder that applies extensively at present namely, copper solder) ;
(③ of 2) ① is attributed to metalloid data, demand applies active drill rod to expect ability solders his to go up to cutter hub (commonly makings of metallic radical drill rod can join only metal and metal, and makings of active drill rod can undertake the metal is opposite already of the metal solder, return what can realize gold to belong to pair of metalloid data to solder treatment
(4) and temperature of the point of a knife when the CBN cutting tool that ③ ④ makes processes hard steel of temper by dipping in water is extremely high, become loose to avoid solder side, demand chooses high temperature solder. In view of the itself character that exceeds data of strong cutting tool, solder about vacuum and character, least demand chooses the demand that satisfaction of ability of two kinds of solder alls, namely the active solder of a kind of low temperature, those who be used at single crystal diamond and PCD cutting tool solder treatment; solder of active of another kind of high temperature, those who be used at integral CBN and PCBN cutting tool solder treatment. Solder of active of the first kind of low temperature
Although makings is to be able to solder everything exceeds strong cutting tool, but about CBN cutting tool, the view still is to choose high temperature solder, so commodity of CBN cutting tool can be added greatly in the stability below high temperature.
The preparation before 4 solder works (before entering furnace)
The intensity of drill rod solder is by the element of many sided of a resolution, to acquire welding line of excellent drill rod solder, demand is held accuse a few perhaps the influence solders the detail of quality. Solder at the convention related and character, the requirement that vacuum solders to work to preparation is a few stricter. Express 1 a few listedder first effect element.
The article arranges storage-rack.onsonhardware.com of processing factory of drill rod solder