Indima yoNyango loBushushu kwiSaw Tip Welding

    I-Welding tungsten carbide (WC) yabona iingcebiso zokusika izixhobo yinkqubo ebalulekileyo echaphazela kakhulu ukusebenza kunye nokuphila ixesha elide kwezixhobo. Nangona kunjalo, inkqubo ye-welding inokwazisa uxinzelelo olushiyekileyo kwaye iguqule i-microstructure yezinto ezibandakanyekayo. Kulapho unyango lobushushu ludlala indima ebalulekileyo. Ngokusebenzisa ngokucokisekileyo iindlela zonyango lobushushu emva kwe-welding, abavelisi banokuphucula iimpawu zemishini yamalungu adibeneyo, ukuqinisekisa ukusebenza kakuhle phantsi kweemeko zokusebenza. Eli nqaku liphonononga ukubaluleka konyango lobushushu kwi-saw tip welding, iinkqubo ezibandakanyekayo, kunye neenzuzo ezibonelela ngazo.

1. Ukuqonda unyango lokutshisa

    Ukunyangwa kobushushu yinkqubo elawulwayo ebandakanya ukufudumeza kunye nokupholisa izinto ukuze kuphunyezwe iimpawu ezifunwayo zoomatshini. Kumxholo we-welding, unyango lobushushu lunceda ukukhulula uxinzelelo olushiyekileyo, ukuphucula ubulukhuni, kunye nokwandisa ukuqina. Inkqubo ethile yonyango lokushisa ekhethiweyo ixhomekeke kwizinto ezibandakanyekayo kunye neempawu ezifunwayo zemveliso yokugqibela.

2. Ukubaluleka koNyango lokutshisa kwi-Welding

2.1 Uncedo olushiyekileyo loxinzelelo

    I-Welding yazisa i-gradients ebalulekileyo ye-thermal enokukhokelela kuxinzelelo olushiyekileyo ngaphakathi kwendawo edibeneyo edibeneyo kunye nommandla ochaphazelekayo kubushushu (HAZ). Olu xinzelelo lunokubangela ukungqubana, ukuqhekeka, okanye ukusilela kwangaphambi kwexesha kwecandelo elidityanisiweyo ngexesha lenkonzo. Unyango olushushu luyimfuneko ekupheliseni olu xinzelelo, ukukhuthaza uzinzo lwe-dimensional, kunye nokuqinisekisa ukunyaniseka kwe-welded joint.

2.2 UPhuculo lweMicrostructure

    Inkqubo ye-welding inokuguqula i-microstructure yeengcebiso ze-tungsten carbide kunye ne-substrate yensimbi. Ukushisa okugqithisileyo kunokukhokelela kwi-carbide coarsening, echaphazela kakubi ubunzima kunye nokuxhatshazwa kokugqoka kweengcebiso. Ukunyanga ukushisa kuvumela ukulungiswa kwe-microstructure, ukukhuthaza ukusabalalisa okufanayo kwee-carbides kunye nokuphucula ukusebenza ngokubanzi kweengcebiso zeesaha.

2.3 Ukuphuculwa kweePropati zoomatshini

    Ngonyango lobushushu, abavelisi banokulungelelanisa iipropathi zoomatshini zokudibanisa okudityanisiweyo ukuhlangabezana neemfuno ezithile zesicelo. Iinkqubo ezinje ngokuthambisa kunye nokuqhobosha kungaphucula ukuqina ngelixa ugcina ubulukhuni. Le bhalansi ibalulekile ekuqinisekiseni ukuba iingcebiso zeesaha ziyakwazi ukumelana noxinzelelo oluphezulu kunye neemeko ezirhabaxa ezidibana nazo ngexesha lokusika.

3. IiNkqubo zoNyango oluQhelekileyo loBubushushu

3.1 Ukunciphisa uxinzelelo

    Ukunciphisa uxinzelelo yinkqubo yonyango lobushushu ebandakanya ukufudumeza icandelo elidityanisiweyo kwiqondo lobushushu elithile, elingaphantsi kobushushu obubalulekileyo bemathiriyeli esisiseko, kwaye emva koko uyivumele iphole kancinci. Le nkqubo inceda ukunciphisa uxinzelelo olushiyekileyo ngaphandle kokuguqula kakhulu i-microstructure ye-tungsten carbide okanye i-substrate yensimbi.

3.2 Ukuthambisa

    I-Tempering isoloko isenziwa emva kokucima ukuze kuncitshiswe i-brittleness. Kumxholo we-tungsten carbide yabona iingcebiso, ukuthambisa kunokunceda ukufezekisa ukulingana phakathi kobunzima kunye nokuqina. Icandelo lifudunyezwa kwiqondo lokushisa elichazwe kwangaphambili kwaye lipholile, livumela ukuhanjiswa kwakhona kwekhabhoni kunye nokunciphisa uxinzelelo lwangaphakathi.

3.3 Ukudibanisa

    I-Anealing yinkqubo yonyango ebanzi kakhulu enokuthi isetyenziswe kwii-substrates zentsimbi. Kubandakanya ukufudumeza izinto kwiqondo lokushisa eliphezulu kwaye emva koko ukupholisa ngokukhawuleza ukukhuthaza ukuvuselela kwakhona. Le nkqubo iphucula i-ductility kwaye inciphisa ubulukhuni, okwenza kube lula umatshini okanye ukuqhubela phambili inkqubo edibeneyo edibeneyo.

4. Iingqwalasela kuNyango loBubushushu olusebenzayo

4.1 Ulawulo lobushushu

    Ukulawula ubushushu obuchanekileyo kubalulekile ngexesha lonyango lobushushu. Ukushisa ngokugqithiseleyo kunokukhokelela kwiinguqu ezingathandekiyo kwi-microstructure, ngelixa ukufudumeza okunganeleyo kungenakukwazi ukukhulula ngokwaneleyo uxinzelelo. Ukusebenzisa iinkqubo zokubeka iliso kwiqondo lokushisa eliphezulu kunokuncedisa ukuqinisekisa ukuba inkqubo yonyango yokushisa yenziwa ngaphakathi kweeparamitha ezichaziweyo.

4.2 Iqondo lokupholisa

    Izinga lokupholisa elilandela unyango lobushushu likwadlala indima ebalulekileyo ekumiseleni iimpawu zokugqibela zejoyinti edityanisiweyo. Ukupholisa ngokukhawuleza kunokubangela uxinzelelo olongezelelweyo, ngelixa ukupholisa okucothayo kukhuthaza ukufana kwi-microstructure. Abavelisi kufuneka bakhethe ngononophelo indlela yokupholisa ngokusekelwe kwizinto kunye neziphumo ezifunwayo.

4.3 UQinisekiso loMgangatho

    Ukuphumeza amanyathelo angqongqo okuqinisekisa umgangatho kubalulekile ukuqinisekisa ukusebenza kakuhle kwenkqubo yonyango lobushushu. Uvavanyo olungonakalisi (NDT) iindlela, ezifana nokuvavanya ubunzima kunye nohlalutyo lwe-microstructural, lunokunceda ukuvavanya umgangatho we-weld kunye nokusebenza kwonyango lobushushu.

Ukuqukumbela

    Unyango lobushushu linyathelo elibalulekileyo kwiwelding ye-tungsten carbide saw tips, esebenza ukunciphisa uxinzelelo olushiyekileyo, ukwenza ngcono i-microstructure, kunye nokuphucula iimpawu zoomatshini. Ngokusebenzisa iindlela ezifanelekileyo zokunyanga ukushisa, abavelisi banokuphucula kakhulu ukusebenza kunye nokuqina kwezixhobo zabo zokusika. Njengoko ishishini le-hardmetal liqhubeka liqhubela phambili, ukudityaniswa kweenkqubo zokunyanga ubushushu kuya kuhlala kubalulekile ekuveliseni iimveliso ze-tungsten carbide ezikumgangatho ophezulu ezihlangabezana neemfuno eziqatha zezicelo zangoku..