Ngexesha lokuveliswa kwamaphepha e-PVC kunye neeprofayili, ukhetho lwezixhobo zemveliso luchaphazela ngokuthe ngqo ukuqina kwezixhobo, ukusebenza kakuhle kwemveliso, kunye nomgangatho wemveliso. Kuba ukusetyenzwa kwePVC kubandakanya amaqondo obushushu aphezulu, uxinzelelo oluphezulu, kunye nokudleka kweekhemikhali, izixhobo zokusebenza kufuneka zibe nokumelana nobushushu obubalaseleyo, ukuxhathisa ubushushu, kunye namandla koomatshini ukuqinisekisa ukusebenza okuzinzileyo kwexesha elide{1}.
1. IiMfuneko zeMathiriyeli kuMaziko angundoqo
Amalungu aphambili ezixhobo zokusetyenzwa kwePVC, ezifana nesikrufu, umphanda, ukungunda, kunye nenkqubo yokufudumeza, ziqhele ukwakhiwa ngentsimbi ephezulu{0}}enamandla okanye ngentsimbi ekhethekileyo engenakutyiwa. Njengamacandelo aphambili adibana ngokuthe ngqo nezinto zePVC, isikrufu kunye nomgqomo zifuna ukunxiba okugqwesileyo kunye nokumelana nomhlwa. Izinto ezisetyenziswa ngokuqhelekileyo ziquka i-38CrMoAl nitrided steel okanye SKD11 high -hardness alloy steel, ehamba nge-nitriding okanye i-chrome plating ukunyusa ubulukhuni bomphezulu kunye nokumelana nokunxiba. Ukongeza, ezinye izixhobo eziphezulu - zisebenzisa ubume be-bimetallic, kunye nomaleko wangaphakathi wokunxiba{8}}i-alloy enganyangekiyo kunye nomaleko wangaphandle wentsimbi, ukulinganisa iindleko kunye nokusebenza.
2. IiNgqwalaselo zokuChasa iCorrosion
Ukusetyenzwa kwe-PVC kunokukhupha iigesi ezidliwayo ezifana ne-hydrogen chloride (HCl), ngoko ke izixhobo zentsimbi kufuneka zixhathise kwiikhemikhali. Insimbi engenasici (efana ne-316L okanye i-2205 duplex steel stainless) isoloko isetyenziselwa ukubumba kunye neenkqubo zembaleki ezidibana ne-PVC yokunyibilika ngenxa ye-asidi egqwesileyo kunye nokuxhathisa kwealkali. Kwizinto{4} ezingabalulekanga, ubugcisa bokugquma (obufana ne-epoxy okanye iTeflon coatings) bunokusetyenziswa ukunciphisa umngcipheko wokubola kunye nokunciphisa intsalela yezinto.
3. Ukuzinza kwe-Thermal kunye nokuCwangciswa kokuLungiswa
Amaqondo obushushu okulungisa iPVC aqhele ukuqala kwi 160℃ukuya ku 200℃, ngoko ke inkqubo yokufudumeza kwesixhobo kufuneka yenziwe ngezinto eziphezulu-zobushushu{3}}ezixhathisayo, ezifana nenickel{4}}ialloyi esekwe okanye iisambatho ngeceramic. Ngaphaya koko, iimolds kunye nezinto ezibunjiweyo kufuneka zibonise uzinzo oluphezulu lwe-dimensional ukuqinisekisa ukuchaneka kwemveliso. Ezinye izixhobo zisebenzisa{7}}intsimbi eqinisiweyo okanye echanekileyo{8}}ialloyi ezenziwe ngoomatshini ukunciphisa ifuthe loguquko lwe-thermal kumgangatho wemveliso.
4. Iindleko{1}}UkuSebenza kunye neeNdleko zokuLondoloza
Ngaphaya kweemfuneko zokusebenza, ukhetho lwemathiriyeli kufuneka luqwalasele iindleko-ezisebenzayo. Umzekelo, intsimbi yekhabhoni eqhelekileyo inokomelezwa ukuze ihlale ixesha elide ngonyango lomphezulu olufana ne-carburizing okanye ukutshiza, ngaloo ndlela kuncitshiswe iindleko zokwenziwa. Ngaphaya koko, iindawo ezisebenzisekayo (ezifana neentloko zezikrufu kunye neekhoyili zokufudumeza) kufuneka zamkele uyilo lwemodyuli oluvumela ukutshintshwa okukhawulezayo ukunciphisa ixesha lolondolozo.
Ngamafutshane, ukhetho lwempahla yephepha lePVC kunye neprofayili yokuvelisa idinga uqwalaselo olubanzi lokunganyangeki, ukuxhathisa ukubola, ukuzinza kwe-thermal, kunye neendleko -ukusebenza ngempumelelo ukuqinisekisa ukusebenza kakuhle kunye{1}}nomgangatho ophezulu wemveliso yemveliso. Intlanganisela yemathiriyeli enengqiqo nefanelekileyo ayigcini nje ukwandisa ubomi besixhobo kodwa ikwaphucula ukusebenza kakuhle kwemveliso kunye nokunciphisa iindleko zemveliso ngokubanzi.
