Iintsimbi ezingwevu zibonelela ngokuqina okungenakuthelekiswa nanto kunye nokusebenza kakuhle kweendleko kumacandelo amashishini anoxinzelelo oluphezulu-ingakumbi apho ukungcangcazela kumanzi, ukumelana nokunxiba, kunye nokuzinza kobushushu kubaluleke kakhulu. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siye savelisa ngaphezu kwe-12,000 iiyunithi zokugalela intsimbi engwevu kwimizimba yevalve ye-hydraulic, izindlu zempompo, kunye nemigqomo yemoto yobunjineli yokuqhawula ukusukela ngo-2020. Yonke inxalenye idibana ne-ASTM A48 Class 30B ubuncinci amandla okuqina (207 TMMPa yokulawula i-Amorphology kwi-Amorphology I-A247-kuba ukusabalalisa kwe-flake okungahambelaniyo kubangela ukukhathala kwangaphambi kwexesha kwii-cylinder liners phantsi koxinzelelo lwe-cyclic.
Kutheni iGrey Iron isaphumelela apho ibala khona
Ezinye iinjineli zicinga ukuba i-iron ductile okanye intsimbi kufuneka ithathe indawo yentsimbi engwevu kwizicelo eziyimfuneko. Kodwa idatha yokwenyani ixela ibali elahlukileyo. Kuphononongo lwakutsha nje lwezindlu ezingama-475 zempompo yepiston kuzo zonke iinqanawa zenkonzo ye-oyile yaseMntla Melika, iinguqulelo zentsimbi ezingwevu zithathe ixesha elide nge-18% kuneeyunithi ezilinganayo zentsimbi phantsi kwemithwalo efanayo eyi-3,000-psi pulsating. Ngoba? Iigraphite flakes zisebenza njengemithombo eyakhelweyo yokuthambisa ngexesha lokuthanjiswa kwemida—yaye zifunxa amandla okungcangcazela ebeya kuthi ukuba ngenye indlela adlulele kwizibiyeli namatywina.
Sibona oku imihla ngemihla kumgca wethu we-sand-casting: xa abathengi betshintsha ukusuka kwi-ductile iron ukuya kwi-ASTM A159 G3000 yentsimbi ye-gray ye-winch center shaft rollers, ixesha lomatshini lilahla i-22% ngenxa yobunzima obuphantsi (187-229 HBW vs. 241-269 HBW) kunye nokuziphatha okuphezulu kwe-chip-breaking. Ayisiyo theory-ilinganiswa kwi-Okuma MULTUS U3000 ye-multi-axis CNCs ngexesha lokugqiba ukuguqula imisebenzi. Akukho ndlala ipholileyo. Akukho sixhobo sincokola. Umphezulu ongaguquguqukiyo uphela ngeRa 1.6 µm.
Intsimbi engwevu iphinda isombulule iingxaki zolawulo lwe-thermal ezinye izinto azikwazi. Iziseko zempompo ezivezwe kumanzi ashushu angaphakathi (umzekelo, i-60 ° C ukuya kwi-120 ° C kwimijikelo ye-90-yesibini) ibonisa i-40% engaphantsi kokuphazamiseka kwe-thermal kunye nentsimbi engwevu ngokuchasene nentsimbi engama-316. Isizathu? I-conductivity ephezulu ye-thermal (50 W / m·K vs. 16 W / m·K) kunye ne-coefficient ephantsi yokwandiswa kwe-thermal (10.4 × 10⁻⁶ / ° C vs. 16 × 10⁻⁶ / ° C). Siqinisekisa oku kusetyenziswa i-infrared thermography ngexesha lovavanyo olusebenzayo-akukho ngqikelelo.
Iindleko ezifihlakeleyo "zexabiso eliphantsi" le-Grey Iron Castings
Ayizizo zonke iintsimbi ezingwevu ezenza okufanayo. Siye saphicotha iikowuti ze-31 zababoneleli kwi-ASTM A48 Iklasi ye-25 imizimba yevalve yentsimbi engwevu-kwaye safumanisa ukuba i-68% ayiphumelelanga iitshekhi ezisisiseko ze-metallurgical. Imiba eqhelekileyo ibandakanya i-phosphorus eninzi (> 0.12%), umxholo wepearlite ongalawulekiyo (<80% kwimimandla ethwele umthwalo), kunye nentsalela ye-magnesium carryover evela kwi-ductile iron yangaphambili yokuthulula. Ezi ziphene zibangela ukuqhekeka okuncinci ekuqaleni okubandayo okanye ukukhukuliseka komda emva kobushushu bokuhamba ngebhayisekile.
E-QINGDAO QIANGSENYUAN, yonke inyibilika yentsimbi engwevu iqala ngentsimbi yehagu ene-phosphorus eqinisekisiweyo ephantsi (≤0.05% P) kunye nezisulungesi zengqolowa ze-ferrosilicon. Sibamba i-carbon equivalent (CE) phakathi kwe-3.7-4.1 ukulinganisela u-fluidity kunye namandla-ungaze uxoshe amanani aphezulu obunzima kwindleko ye-machinability. Iziko lethu leziko lilandelela isulfure, manganese, kunye namazinga okupholisa ngexesha lokwenyani. Ukuba i-CE ikhukuliseka ngaphaya kwe-± 0.05, sichitha ubushushu-hayi ukuthoba.
Olo qeqesho lunemiphumo emihle. Abathengi baxela ukusilela kwintsimi ye-zero kwi-AMS 5387-ehambelanayo neengxenye zempompo yentsimbi engwevu ngaphezulu kweenyanga ezingama-42 zokusebenza ngokuqhubekayo kumaqonga onxweme aseMzantsi-mpuma Asia. Ukuchasana nokukhula akuzenzekeli-kodwa i-microstructure yethu elawulwayo iyaxhathisa ukuqhekeka kwe-sulfide yoxinzelelo olungcono kunamabanga afunyenweyo aqhelekileyo.
Unokukhetha nini i-ayina engwevu ngaphezu kweendlela ezizezinye
Khetha iintsimbi ezingwevu xa isicelo sakho sifuna:
- Ukungcangcazela kumanzi -Ibaluleke kakhulu kwiziseko zecompressor, izindlu zokunciphisa izixhobo, kunye nezakhelo zovavanyo
- Imiphezulu yokunxiba yokuzithambisa - ilungele amagubu eziqhoboshi, iipleyiti zeclutch, kunye neendlela zokuslayida
- Uzinzo lweDimensional phantsi kwebhayisekile eshushu -ingqinwe kwiibhlokhi ze-injini, ii-manifolds zokukhupha, kunye nee-core exchanger exchanger cores
- Imveliso yomthamo ophakathi exabisa iindleko — iindleko zesixhobo sentsimbi engwevu ziqhuba i-30–50% ngaphantsi kotyalo-mali lotyalo-mali kwiinxalenye>5 kg
Gwema i-iron engwevu kuphela xa kufuneka ukuqina kwempembelelo yokugqibela (umzekelo, amazinyo ebhakethi ye-excavator) okanye xa ukubonakaliswa kudlula i-500 ° C ngokuqhubekayo. Kuyo yonke enye into-kubandakanywa iivalvu zoxinzelelo ezilinganiswe kwi-10,000 psi, i-piston pump cylinder housings ene-0.025 mm yokunyamezela, kunye neeroli zemoto zobunjineli eziphethe imithwalo ye-80-toni ye-static-intsimbi engwevu ihlala ikhethwa ngobunjineli.
Intsebenziswano yokwenyani iqala ngobukrelekrele bezinto eziphathekayo
Ukukhetha iintsimbi ezingwevu akumele kuthethe ukukhetha phakathi kwexabiso kunye nokusebenza. E-QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., Siphatha ukhetho lwezinto eziphathekayo njengobunjineli obusebenzisanayo-hayi ukuthenga. Iqela lethu liphonononga ii-callouts ze-GD&T phambi kokucaphula, libonisa imingcipheko enokubakho yokuncipha kumacandelo anodonga olucekethekileyo, kwaye liqinisekise ukulinganisa kokuhamba kokungunda ngokuchasene novavanyo lokugalelwa okwenyani. Asikuthumeli nje ukuthunyelwa kwenqanawa-sihambisa i-microstructures eqinisekisiweyo, ukulandeleka okubhaliweyo ukuya kwinani lobushushu, kunye neengxelo ezinobungakanani ezisayinwe ngabahloli abaqinisekisiweyo be-CMM.
Kubathengi abachaza iintsimbi ezingwevu, sincoma ukuqala ngemibuzo emithathu: Yeyiphi eyona ndlela yokusilela kuyilo lwakho lwangoku? Yeyiphi imiphezulu enomthwalo xa ithelekiswa naleyo ifuna ukutywinwa? Kwaye i-gradients ezishushu ziya kusasazwa njani kwindawo yonke ngexesha lokusebenza? Phendula ezo-kwaye siya kukutshatisa nebakala elifanelekileyo, indlela yokuqhubela phambili, kunye neprothokholi yokuhlola.
Iintsimbi ezingwevu aziyiyo itekhnoloji yelifa. Zizisombululo ezichanekileyo ezenziwe ngobunjineli ezisulungekisiweyo ngaphezulu kweminyaka eyi-150-kwaye zisavela. Kwiziko lethu elithobela i-ISO eQingdao, yonke into iqhubela phambili ngendaleko. Ngenxa yokuba ukuqina akukho nje malunga namandla. Imalunga nokuqikelela. Ukungqinelana. Ulawulo.
