Iimpawu zoomatshini ze
(1) Amandla okuqina (σb) :awona mandla aphezulu (Fb) wesampulu ngexesha lokwaphuka kwe-tensile yahlulwe luxinzelelo (σ) lwendawo yokuqala enqamlezileyo (Ngoko) yomfanekiso.Iyunithi yamandla e-tensile (σb) yi-N/mm2(MPa).Imele umthamo omkhulu wezinto zetsimbi ukuxhathisa umonakalo phantsi koxinzelelo.Phi: Fb-- awona mandla aphezulu athwalwa ngumzekelo xa uqhekeka, N (Newton);2.
(2) Inqaku lemveliso (σ S) :inqaku lesivuno sezinto zetsimbi kunye nesiganeko sokuvelisa.Luxinzelelo apho i-specimen ingaqhubeka nokwelula ngaphandle kokunyusa amandla (ukugcina rhoqo) ngexesha lenkqubo yokuqina.Kwimeko yokuncipha kwamandla, amanqaku aphezulu kunye nasezantsi kufuneka ahlulwe.Iyunithi yenqaku lesivuno yiNF/mm2(MPa).Inqaku eliphezulu lesivuno (σ SU) lolona xinzelelo luphezulu phambi kokuba i-specimen ivelise kwaye amandla ehla okokuqala.Inqaku lesivuno esisezantsi (σ SL) : ubuncinci boxinzelelo kwisigaba sokuvelisa xa umphumo wokuqala wexeshana ungaqwalaselwa.Apho i-Fs ingamandla emveliso (ngaguquguqukiyo) yomzekelo ngexesha lenkqubo yokuqina, i-N (Newton) Ngokunjalo indawo yokuqala enqamlezileyo yomzekelo, mm2.
(3) Ubude emva kokwaphuka :(σ)kuvavanyo lwe-tensile, ulwandiso yipesenti yobude obunyuswe ngumgama osemgangathweni womzekelo emva kokwaphuka xa kuthelekiswa nobude bomgama osemgangathweni wokuqala.Iyunithi yi%.Apho: L1-- umgama wesampulu emva kokwaphulwa, mm;L0-- Ubude bomgama woqobo wesampulu, mm.
(4) Unciphiso lwecandelo :(ψ)kuvavanyo lwe-tensile, ipesenteji yokunciphisa ubuninzi bendawo enqamlezileyo kwidayimitha encitshisiweyo yomfanekiso emva kokutsalwa kunye nommandla onqamlezileyo wokuqala ubizwa ngokuba kunciphiso lwecandelo.ψ ibonakaliswe nge-%.Apho, S0-- indawo yokuqala enqamlezileyo yesampulu, mm2;S1-- Ubuncinci bendawo enqamlezayo kwidayamitha encitshisiweyo yesampulu emva kokuqhekeka, mm2.
(5) Isalathiso sokuqina:ukukwazi kwezixhobo zetsimbi ukuxhathisa izinto ezilukhuni ukujikisa umphezulu, owaziwa ngokuba lukhuni.Ngokwendlela yovavanyo kunye nobubanzi besicelo, ubulukhuni bunokwahlulwa bubulukhuni beBrinell, ukuqina kweRockwell, ukuqina kweVickers, ukuqina konxweme, ubulukhuni obuncinci kunye nobunzima obuphezulu bobushushu.Iqhele ukusetyenziswa kumbhobho izinto brinell, rockwell, Vickers ubulukhuni 3 iintlobo.
(6) Ukuqina kweBrinell (HB) :kunye nedayamitha ethile yebhola yentsimbi okanye ibhola ye-alloy eqinile, kunye novavanyo oluchaziweyo lwamandla (F) lucinezelwe kumphezulu wesampulu, emva kwexesha elichaziweyo lokubamba ukususa amandla ovavanyo, umlinganiselo wesampulu yesampulu yokufaka i-demeter (L).Inombolo yobulukhuni be-Brinell yi-quotient yamandla ovavanyo olwahlulwe ngumphezulu we-indentation sphere.Ibonakaliswe kwi-HBS, iyunithi yi-N/mm2(MPa).
Iipropati zoomatshini bombhobho wentsimbi ekhandisiweyo，Impembelelo yokusebenza
(1) Ikhabhoni;Ukuphakama kwekhabhoni, i-iron inzima, kodwa iplastiki encinci kunye ne-ductile.
(2) isulfure;Ngaba inkunkuma eyingozi kwintsimbi, intsimbi enesulfure ephezulu kuxinzelelo oluphezulu loxinzelelo, kulula ukuqhekeka, edla ngokubizwa ngokuba yi-brittleness eshushu.
(3) iphosphorus;Inokunciphisa kakhulu iplastiki kunye nokuqina kwentsimbi, ngakumbi kwiqondo lokushisa eliphantsi, elibi kakhulu, kwaye le nto ibizwa ngokuba yi-cold brittleness.Kwikhwalithi ephezulu yensimbi, isulfure kunye ne-phosphorus kufuneka ilawulwe ngokungqongqo.Kodwa kwelinye icala, intsimbi ephantsi yekhabhoni iqulethe i-sulfure ephezulu kunye ne-phosphorus, inokwenza ukusika kwayo kube lula ukuphuka, ukuphucula ukusebenza kwentsimbi kuyathandeka.
(4) IManganese;Inokuphucula amandla ensimbi, inokunciphisa kwaye isuse imiphumo emibi yesulfure, kwaye inokuphucula ukuqina kwetsimbi, isinyithi esiphezulu se-alloy kunye nomxholo ophezulu we-manganese (insimbi ephezulu ye-manganese) inokumelana nokunxiba kakuhle kunye nezinye iimpawu zomzimba.
(5) Isilicon;Inokuphucula ubulukhuni bentsimbi, kodwa iplastiki kunye nokuqina kwehla, intsimbi yombane iqulethe inani elithile le-silicon, inokuphucula iimpawu ezithambileyo zamagnetic.
(6) iTungsten;Inokuphucula ubunzima obomvu, amandla okushisa kunye nokuxhatshazwa kwentsimbi.
(7) Chromium;Inokuphucula ukuqina kunye nokuxhatshazwa kwentsimbi, ukuphucula ukuxhathisa kwe-corrosion kunye nokumelana ne-oxidation yentsimbi.
(8) iZinc;Ukuze kuphuculwe ukuxhathisa kwe-corrosion, umbhobho wensimbi jikelele (umbhobho omnyama) ufakwe i-galvanized.Umbhobho wentsimbi eyakhiwe yahlulwe yaziintlobo ezimbini zentsimbi eshushu kunye nentsimbi yombane yezinki, idiphu eshushu yagalvanized layer thick, electric galvanized cost iphantsi, ngoko kukho umbhobho wentsimbi.
Iimpawu zobuchwephesha bombhobho wentsimbi ekhandisiweyo，Indlela yokucoca
1. Ukusetyenziswa kokuqala kwe-solvent yokucoca umphezulu wentsimbi, umphezulu wokususwa kwezinto eziphilayo,
2. emva koko sebenzisa izixhobo zokususa umhlwa (ibrashi yocingo), susa isikali esixekileyo okanye esithambekileyo, umhlwa, i-welding slag, njl.,
3. ukusetyenziswa kwe pickling.
I-galvanized yahlulwe ibe yi-plating eshushu kunye ne-plating ebandayo, i-plating eshushu ayikho lula ukugqwala, i-plating ebandayo kulula ukugqwala.
Iipropati zoomatshini zombhobho wentsimbi owenziwe ngamazimba, Uqhagamshelo kwimowudi yokuqengqeleka
(1) Groove weld cracking
1, umbhobho woxinzelelo lomlomo wegroove inxalenye yodonga lwangaphakathi lwe-welding bar egudileyo, ukunciphisa ukuxhathisa ukuqengqeleka kwegroove.
2. Lungisa i-axis yombhobho wensimbi kunye nezixhobo zokugoqa i-groove, kwaye zifuna umgangatho wepayipi yensimbi kunye nezixhobo zokugqoka i-groove.
I-3, ukulungelelanisa isantya setanki yoxinzelelo, ixesha lokubumba letanki yoxinzelelo alikwazi ukudlula izibonelelo, iyunifomu kunye namandla acothayo.
(2) Ukuqhekeka kombhobho wentsimbi yokuqengqeleka
1. Lungisa iimbambo ze-welding kudonga lwangaphakathi lwe-groove yoxinzelelo emlonyeni wentsimbi yombhobho ukunciphisa ukuxhathisa kwe-groove rolling.
2. Lungisa i-axis yombhobho wensimbi kunye nezixhobo zokugoqa i-groove, kwaye zifuna umgangatho wepayipi yensimbi kunye nezixhobo zokugqoka i-groove.
I-3, lungisa isantya setanki yoxinzelelo, isantya setanki yoxinzelelo asikwazi ukudlula izibonelelo, iyunifomu kunye namandla acothayo.
4. Khangela ububanzi kunye nohlobo lwe-roller yenkxaso kunye ne-pressure roller yezixhobo ze-groove ukuze ubone ukuba ii-roller ezimbini azihambelani nobukhulu kwaye zibangele i-occlusal phenomenon.
5. Khangela ukuba i-groove yombhobho wensimbi ichazwe nge-vernier caliper.
(3) Umatshini wokubumba i-groove kufuneka uhlangabezane nezi mfuno zilandelayo
1. Umphezulu ukusuka ekupheleni kombhobho ukuya kwi-groove iya kuba lula kwaye ikhululekile kwi-concave-convex kunye namanqaku okuqengqeleka.
2. Iziko le-groove kufuneka ligxininise kunye nodonga lombhobho, ububanzi kunye nobunzulu be-groove kufuneka buhlangabezane neemfuno, kwaye ukhangele ukuba uhlobo lwe-clamp luchanekile.
3. Faka i-lubricant kwiringi yokutywina yerabha kwaye ujonge ukuba iringi yokutywina yerabha yonakele na.Isithambiso se-oyile asiyi kusetyenziselwa ukuthambisa.
Ixesha lokuposa: May-23-2022