Izinto eziluncedo, izinto ezingeloncedo, kunye nomahluko phakathi kwentsimbi enesantya esiphezulu kunye ne-cemented carbide

1. Intsimbi enesantya esiphezulu:

Isinyithi esinesantya esiphezulu sinekhabhoni ephezulu kunye nentsimbi ephezulu. Ngokokwakheka kweekhemikhali, inokwahlulwa ibe yintsimbi ye-tungsten kunye nentsimbi ye-molybdenum, kwaye ngokwentsebenzo yokusika, inokwahlulwa ibe yintsimbi eqhelekileyo enesantya esiphezulu kunye nentsimbi esebenza ngesantya esiphezulu. Intsimbi enesantya esiphezulu kufuneka iqiniswe ngonyango lobushushu. Kwimeko yokucima, isinyithi, i-chromium, inxalenye ye-tungsten, kunye nekhabhoni kwi-high-speed steel form ye-carbides enzima kakhulu, enokuphucula ukuxhatshazwa kwentsimbi (ubunzima bunokufikelela kwi-HRC64-68).

Enye inxalenye ye-tungsten inyibilika kwi-matrix kwaye inyusa ubulukhuni obubomvu bentsimbi. Ubunzima obubomvu bentsimbi yesantya esiphezulu bunokufikelela kuma-650 degrees. Intsimbi enesantya esiphezulu inamandla amahle kunye nokuqina. Emva kokulola, umgca wokusika ubukhali kwaye umgangatho uzinzile. Ngokuqhelekileyo isetyenziselwa ukwenza izixhobo ezincinci, ezintsonkothileyo.

2. Ikhabhide enesamente:

I-carbide ene-cemented yi-micron-order refractory high-hardness metal carbide powder, eyenziwa ngokudubula kwiqondo lokushisa eliphezulu kunye noxinzelelo oluphezulu kunye ne-cobalt, i-molybdenum, i-nickel, njl. njenge-binder. Umxholo we-carbides ephezulu yokushisa kwi-carbide ene-cemented idlula i-speed-speed steel, kunye nobunzima obuphezulu (HRC75-94) kunye nokuchasana kakuhle kokugqoka.

Ubunzima obubomvu be-alloy bunokufikelela kwi-800-1000 degrees. Isantya sokusika i-carbide ene-cemented ngamaxesha angama-4-7 aphezulu kuneyentsimbi ephezulu. Ukusebenza kakuhle kokusika.

I-carbide enesamente inobunzima obuphezulu, amandla, ukuxhathisa ukunxiba, kunye nokumelana nomhlwa, kwaye yaziwa ngokuba "ngamazinyo oshishino". Isetyenziselwa ukwenza izixhobo zokusika, iimela, izixhobo ze-cobalt, kunye namalungu angagungqiyo, kwaye isetyenziswa kakhulu emkhosini, kwi-aerospace kunye ne-aviation, ukusetyenzwa komatshini, i-metallurgy, ukomba ioyile, izixhobo zemigodi, unxibelelwano lwe-elektroniki, ulwakhiwo kunye namanye amacandelo. ngophuhliso lwamashishini asezantsi, imfuno yemarike ye-carbide enesamente iyaqhubeka nokukhula. Kwaye kwixesha elizayo, ukuveliswa kwezixhobo ezikumgangatho ophezulu kunye nezixhobo, ukuqhubela phambili kwenzululwazi kunye neteknoloji, kunye nophuhliso olukhawulezayo lwamandla enyukliya luya kwandisa kakhulu imfuno ye-high-tech, kunye neemveliso ze-carbide ezizinzile. .