Ngophuhliso olukhawulezayo lweshishini lentsimbi, ukuze kuphuculwe imveliso yentsimbi kunye nokuphucula izinga lokusetyenziswa kunye nemveliso yelitye lokusila, ukunciphisa amaxesha okuvalwa kwendawo yokusila, ukwamkela i-tungsten carbide roller kunye nobomi benkonzo ende kubalulekile. indlela.

Yintoni iTungsten Carbide Roller

I-carbide roller enesamente, eyaziwa ngokuba yi-cemented carbide roller ring, ibhekisa kumqulu owenziwe nge-tungsten carbide kunye ne-cobalt ngendlela ye-powder metallurgical. I-tungsten carbide roll ineentlobo ezimbini zokudibanisa kwaye zidibene. Inomsebenzi ogqwesileyo, umgangatho ozinzile, ukuchaneka okuphezulu kokusebenza kunye nokumelana nokunxiba okugqwesileyo kunye nokuchasana kwempembelelo ephezulu. I-Carbide roller isetyenziselwa ngokubanzi ukuqengqeleka kwentonga, intonga yocingo, intsimbi ephothiweyo kunye nombhobho wentsimbi ongenamthungo, ophucula kakhulu ukusebenza kakuhle kwelitye lokusila.

Ukusebenza okuphezulu kweTungsten Carbide Roller

I-carbide roll inobunzima obuphezulu kwaye ixabiso layo lobunzima lihluka kakhulu elincinci kunye nobushushu. Ixabiso lobunzima phantsi kwe-700 ° C ngamaxesha angama-4 aphezulu kunentsimbi ephezulu. I-elastic modulus, amandla oxinzelelo, amandla okugoba, i-thermal conductivity nayo i-1 ngamaxesha aphezulu kunentsimbi yesixhobo. Ekubeni i-thermal conductivity ye-cemented carbide roll iphezulu, umphumo wokutshatyalaliswa kobushushu ulungile, ukwenzela ukuba umphezulu womqulu uphantsi kobushushu obuphezulu ixesha elifutshane kwaye ngaloo ndlela ixesha lokuphendula lobushushu obuphezulu lokungcola okuyingozi kumanzi okupholisa kwaye umqulu mfutshane. Ngoko ke, i-tungsten carbide rollers ixhathisa ngakumbi kwi-corrosion kunye nokubanda kunye nokukhathala okutshisa kunezixhobo zensimbi.

Ukusebenza kwe-tungsten carbide rollers ihambelana nomxholo wesigaba sentsimbi yebhondi kunye nobukhulu be-tungsten carbide particles. I-tungsten carbide i malunga ne-70% ukuya kwi-90% yokwakheka okupheleleyo kunye nobukhulu be-particle ubukhulu ngu-μm we-0.2 ukuya ku-14. Ukuba umxholo webhondi yensimbi unyuswa okanye ukwandisa ubungakanani be-tungsten carbide, ubunzima be-cemented carbide buyancipha kwaye ukuqina kuyaphuculwa. Amandla okugoba we-tungsten carbide roller ring inokufikelela kwi-2200 MPa. Ukuqina kwempembelelo kunokufikelela (4 ~ 6) × 106 J / ㎡, kunye ne-HRA yi-78 ukuya kwi-90.

I-tungsten carbide roller inokwahlulwa ibe ziindidi ezimbini ezidityanisiweyo kunye nezidibeneyo ngokwefomu yesakhiwo. I-integral tungsten carbide roller isetyenziswe ngokubanzi kwi-pre-pre-precision rolling kunye nokugqiba ukuma kwe-high-speed wire rolling mills. I-composite ye-carbide roller ihlanganiswe nge-tungsten carbide kunye nezinye izinto. I-carbide rollers edibeneyo iphonswe ngokuthe ngqo kwi-roller shaft, esetyenziswe kwi-rolling mill kunye nomthwalo onzima.

Indlela yoMachining yeTungsten Carbide Roller kunye neMithetho yokuKhetha yezixhobo zayo zokusika

Nangona izinto ze-tungsten carbide zingcono kunezinye izinto, kunzima ukwenza i-machining ngenxa yobunzima obukhulu kwaye isetyenziswa ngokubanzi kwishishini lensimbi.

1.Ngokuphathelele ubulukhuni

Xa ulungisa i-tungsten carbide rolls kunye nobunzima obuncinci kune-HRA90, khetha izinto ze-HLCBN okanye isixhobo se-BNK30 sezinto eziphathekayo kwixabiso elikhulu lokujika kwaye isixhobo asiphulwanga. Xa umatshini we-carbide roller enobunzima obukhulu kune-HRA90, isixhobo sedayimane se-CDW025 sikhethwa ngokubanzi okanye ukusila ngevili lokusila idayimani yeresin. Ngokubanzi, ukuphakama kobulukhuni, imathiriyeli i-crisper, ngoko ke ilumke ngakumbi ekusikeni izinto ezinobunzima obuphezulu kunye nesibonelelo esigciniweyo sokugqiba sokusila.

2.Isibonelelo somatshini kunye neendlela zokucubungula

If umphezulu wangaphandle wenziwe ngoomatshini kwaye isibonelelo sikhulu, ngokuqhelekileyo samkela izinto ze-HLCBN okanye izinto ze-BNK30 eziza kucutshungulwa ngokurhabaxa, emva koko zigaye ngevili lokugaya. Ukufumana isibonelelo esincinci somatshini, i-roller inokusila ngokuthe ngqo ngevili lokugaya okanye iphrofayili ecutshungulwa ngezixhobo zedayimane. Ngokubanzi, ukusika enye indlela yokugaya kunokuphucula ukusebenza kakuhle komatshini kwaye indlela yokusika ifanelekile ekuphuculeni ixesha lokukhokela imveliso.

3.Pasivating unyango

Xa umatshini we-tungsten carbide roller, unyango oludlulayo luyimfuneko ukunciphisa okanye ukuphelisa ixabiso elibukhali, ngenjongo yokubala kunye nokuguquguquka kunye nokuqina okuphezulu. Nangona kunjalo, unyango lwe-passivation alufanele lube lukhulu kakhulu, kuba umphezulu woqhagamshelwano wesixhobo sikhulu emva kokugqithisa kunye nokuchasana kokusika kukwandiswa, okulula ukubangela ukuqhekeka, ukulimaza i-workpiece.

Yintoni ekufuneka ihlawulwe ingqalelo kwiMveliso kunye nokusetyenziswa kweTungsten Carbide Roller

Kwiminyaka yakutshanje, i-tungsten carbide rollers iye yafumana izicelo ezingaphezulu nangakumbi kwimveliso yentsimbi kunye nokusebenza kwazo okuhle kakhulu. Nangona kunjalo, kusekho imiba ethile kwimveliso kunye nokusetyenziswa kwe-carbide rolls.

1. Phuhlisa uhlobo olutsha lwezinto eziphathekayo ze-roller shaft. Iintambo eziqhelekileyo ze-iron roller shafts ziya kuba nzima ukumelana namandla amakhulu okuqengqeleka kunye nokuhambisa i-torque enkulu. Ngoko ke kufuneka kuphuhliswe izixhobo ze-carbide composite roll shaft ezisebenza kakhulu.

2. Ngethuba lokwenziwa kwenkqubo yokuvelisa i-carbide rollers, uxinzelelo lwe-thermal oluseleyo olubangelwa ukwanda kwe-thermal phakathi kwentsimbi yangaphakathi kunye ne-carbide yangaphandle ye-cemented kufuneka incitshiswe okanye iphele. I-carbide residual stress thermal is a key factor echaphazela ubomi be-roller. Ngoko ke, i-coefficient yokwandiswa kwe-thermal umahluko phakathi kwentsimbi ekhethiweyo yangaphakathi kunye ne-carbide yangaphandle ye-cemented kufuneka ibe yincinci kangangoko kunokwenzeka, ngelixa iqwalasela ukuphelisa uxinzelelo lwe-thermal oluseleyo lwendandatho ye-carbide roller ngonyango lokushisa.

3. Ngenxa yokungafani kwamandla okujikeleza, i-torque ejikelezayo, ukusebenza kokutshintshwa kobushushu kwii-racks ezahlukeneyo, ii-racks ezahlukeneyo kufuneka zithathe amanqanaba ahlukeneyo e-tungsten carbide rollers ukuqinisekisa ukuhambelana okufanelekileyo kwamandla, ukuqina, kunye nokuqina kwempembelelo.

Isishwankathelo

Ukuqengqeleka kocingo, intonga, i-tungsten carbide roller ithathela indawo imiqulu yentsimbi eqhelekileyo kunye nemiqulu yentsimbi yealloy, ibonise ukongama okuninzi, kunye nophuhliso oluqhubekayo lobuchule bokuvelisa i-roller kunye nokusetyenziswa kwetekhnoloji, iya kuqhubeka nokwandisa izicelo zamakhonkco e-carbide roller. kwaye ziya kuba zibaluleke ngakumbi kumatshini wokuqengqeleka kunye nezicelo ezibanzi.