Kancinci-Uhlobo lweSikrolo esinye

Esi sikrufu sohlobo oluhamba kancinci senziwe ngentsimbi eyi-38CrMoAla. Imathiriyeli ekrwada ibalulekile ekujikeni ukusebenza, kwaye sikhetha amandla aphezulu kunye nentsimbi engagugiyo kubavelisi bentsimbi abaziwayo baseTshayina abahlangabezana nemigangatho yesizwe (GB/T 3077).

I-Nanhaiya's tgradual-type single screw extruders yahlulwe yangamacandelo amathathu ngokusekelwe kumsebenzi wabo. Ubunzulu beefluti kwicandelo ngalinye buyancipha ngokulandelelana ngaphandle kweenguqu eziphawulekayo ezikhawulezayo, ukudala ukwakheka okugudileyo, "kancinci".

Icandelo lesondlo ngokuqhelekileyo libalelwa kwi-20% -30% yobude bobude bezikrufu. Icandelo loxinzelelo, icandelo eliphakathi kwe-screw, libalela inxalenye enkulu (40% -50%) kwaye ingundoqo yesakhiwo esincinci. Ubunzulu befluti buqala kwinqanaba eliphezulu kwicandelo lokutya kwaye ngokuthe ngcembe kwaye ngokulinganayo kuncipha kunye nobude be-screw, yenze "indawo yoxinzelelo."

Icandelo le-homogenization lidibanisa ngakumbi kwaye liphazamise ukunyibilika, liqinisekisa ukushisa okufanayo kunye ne-viscosity. Izinto eziphathekayo zithunyelwa kwintloko yokufa kwixinzelelo oluzinzile kunye nesantya sokuhamba, ukuqinisekisa umgangatho ohambelanayo wemveliso ekhutshweyo.

I-Nanhaiya yodidi oluthe ngcembe lwemibhobho yesikrufu enye iye yadlula kwi-R&D emininzi kunye nophuculo kwaye ngoku idityaniswe kwimigca yemveliso eyahlukeneyo yabavelisi, iphumeza ukusebenza komgangatho wobugcisa. Sinikezela ngewaranti yeminyaka eyi-1-2, kuxhomekeke kumlinganiselo othile wokongezwa kwezinto. Imigqomo ye-Nanhaiya ingena kwinkqubo ye-nitriding, kunye ne-0.8 ~ 2m engqindilili ye-nickel-tungsten alloy alloy spray-welded kwiindawo ezithandwa kakhulu. Oku kwandisa ukuqina komphezulu we-barrel yi-HRC55 ~ 62, ukunyusa ukuxhathisa ukunxiba ngamaxesha angama-2-3.

IParameter yobuGcisa

Uphawu kunye nesicelo

I-Nanhaiya yodidi oluncinci lwe-screw extruder lubonisa isakhiwo esinamanqanaba amathathu kunye nezahlulo ezicacileyo ezisebenzayo. Iiparamitha zenkqubo ehambelanayo (ubushushu, isantya, kunye noxinzelelo lwangasemva) zinokuhlengahlengiswa ngokwengqiqo, ukwenza umsebenzi ube lula kakhulu kunezikrufu ezikhethekileyo.

Ulawulo oluLula loBubushushu: Imilinganiselo yobushushu obumanqanaba amathathu ilandela umgaqo "wokunyuka kwegradient". Icandelo lokutya lineqondo lokushisa eliphantsi (kuphela elifunekayo ukuthambisa izinto eziphathekayo, ezifana ne-50-80 ° C yokulungiswa kwe-PE), icandelo lokunyanzeliswa landa ngokuthe ngcembe kwiqondo lokushisa (ukufikelela kwindawo yokunyibilika, njenge-160-180 ° C ye-PE), kwaye icandelo le-homogenization lizinzisa kwindawo yokuncibilika (njenge-180-200 ° C). Uhlengahlengiso oluntsonkothileyo lobushushu bendawo alufunwa.

Ulungelelwaniso lomgca phakathi kweSpeed ​​and Output: Ngaphakathi koluhlu lwesantya olufanelekileyo (ngokuqhelekileyo i-30-150 rpm), imveliso yonyuka malunga nomgca we-screw speed, isusa imfuno yohlengahlengiso lwembuyekezo yoxinzelelo rhoqo. Oku kuyenza ilungele abaqhubi be-novice kwaye iququzelele imveliso eqhubekayo kunye nezinzileyo enkulu (efana ne-24-iyure ye-extrusion eqhubekayo yemibhobho kunye neefilimu).

Imfuneko yoxinzelelo olusezantsi: Ubunzulu be-screw groove kwicandelo le-homogenization lihlala lihlala kwaye lincinci, kwaye kuphela uxinzelelo oluqhelekileyo lwasemva lwe-3-8 bar lufunekayo ukuze kuqinisekiswe ukunyibilika okufanayo. Uxinzelelo olugqithileyo ngasemva luya kwandisa i-screw torque, ukwandisa ukusetyenziswa kwamandla, kwaye kubangele ukunyibilika kokutshisa, kwaye ipharamitha yenkqubo "yokunyamezela" iphezulu.

I-scruder ye-screw extruder ilungele ukuvelisa iifilimu ze-PE (i-polyethylene) (ezifana nokusonga kokutya, iingxowa zokuthenga kwivenkile enkulu, kunye neengxowa zokuhambisa ezicacileyo ezingenamanzi), i-PP (i-polypropylene) i-trapping tape, kunye ne-PVC (i-polyvinyl chloride) ifilimu yokunciphisa ukushisa. Isenokuvelisa imibhobho yokuhambisa amanzi yePVC, imibhobho yamanzi yePPR, imibhobho yegesi ye-PE, kunye neeprofayili zesakhelo sefestile yeplastiki. Isenokuvelisa izitya zeplastiki ze-PE, iibhakethi zeplastiki ze-PP, i-PVC ye-cable trunking, kunye neebhokisi zokugcina zeplastiki. Ingakwazi kwakhona i-pelletize i-PE kunye ne-PP yezinto ezisetyenzisiweyo kunye nokuvelisa iipayipi ze-PE ezizaliswe ukuya kwi-10% ye-calcium carbonate.

Iinkcukacha zeMveliso

Ubushushu obuphezulu, ukuchaneka komatshini, kunye neenkqubo ze-nitriding ziqinisekisa ukusebenza okubanzi kwamacandelo aphambili.

Iindawo ezinobungozi ze-screw kunye ne-barrel ziqiniswa nge-nickel-tungsten alloy layer, ukufikelela kwi-0.8-2.0mm umaleko obunzima kunye nokuphucula kakhulu ukuxhathisa ukunxiba.