1. Iimpawu zomatshini zentsimbi
1. Indawo yesivuno (σs)
Xa intsimbi okanye isampuli isoluliwe, xa uxinzelelo ludlula umda we-elastic, nokuba uxinzelelo alunyuki, intsimbi okanye isampuli isaqhubeka ingena kwi-deformation yeplastiki ebonakalayo. Lo mcimbi ubizwa ngokuba yi-yielding, kwaye ubuncinci bexabiso loxinzelelo xa ukuvuthwa kwenzeka lelonqaku lesivuno. Vumela i-P ibe ngamandla angaphandle kwinqanaba lesivuno s, kwaye i-Fo ibe yindawo enqamlezileyo yesampuli, emva koko inqaku lesivuno σs =Ps/Fo(MPa).
2. Amandla okuvelisa (s0.2)
Inqaku lesivuno lezinye izinto zetsimbi lingabonakali kakhulu, kwaye kunzima ukulinganisa. Ngoko ke, ukwenzela ukulinganisa iimpawu zesivuno sezinto eziphathekayo, uxinzelelo xa i-deformation yeplastiki ehlala isigxina ilingana nexabiso elithile (ngokubanzi i-0.2% yobude bokuqala) ichazwe, ebizwa ngokuba yimeko. Ukukhupha amandla okanye ukukhupha ngokulula amandla σ0.2.
3. Amandla okuqina (σb)
Ixabiso eliphezulu loxinzelelo olufikeleleke kwizinto eziphathekayo ukusuka ekuqaleni ukuya kwixesha lokuphuka ngexesha lenkqubo yokwelula. Imele ukukwazi kwentsimbi ukuxhathisa ukuphuka. Ingqamana nokuqina kokuqina ngamandla acinezelayo, amandla okuguquguquka, njl. njl. Vumela i-Pb ibe yeyona nto iphezulu yokuqina efikelelwe phambi kokuba imathiriyeli yaphuke, kwaye i-Fo ibe yindawo enqamlezileyo yesampulu, emva koko amandla okuqina σb=Pb/Fo (MPa ).
4. Ubude (δs)
Emva kokuba imathiriyeli yaphukile, ipesenti yobude bayo beplastiki ukuya kubude besampulu yoqobo ibizwa ngokuba yi-elongation okanye elongation.
5. Umlinganiselo wesivuno (σs/σb)
Umlinganiselo wenqaku lesivuno (amandla esivuno) wentsimbi ukuya kumandla okuqina ubizwa ngokuba ngumlinganiselo wesivuno. Umlinganiselo omkhulu wesivuno, uphezulu ukuthembeka kweendawo zesakhiwo. Ngokuqhelekileyo, umlinganiselo wesivuno se-carbon steel yi-0.6-0.65, i-low-alloy structural iron yi-0.65-0.75, kwaye i-alloy structural iron yi-0.84-0.86.
6. Ukuqina
Ubunzima bubonisa ukukwazi kwesixhobo ukuxhathisa ukucinezela into eqinileyo kumphezulu wayo. Ngenye yezibonakaliso ezibalulekileyo zokusebenza kwezinto zetsimbi. Ngokubanzi, okukhona ukuqina kokuqina, kokukhona ukuxhathisa ukunxiba bhetele. Izalathi zokuqina eziqhele ukusetyenziswa bubulukhuni beBrinell, ukuqina kweRockwell kunye nobulukhuni beVickers.
1) Ukuqina kweBrinell (HB)
Cinezela ibhola yentsimbi eqinile yobungakanani obuthile (ngokuqhelekileyo i-10mm ububanzi) kwindawo yezinto eziphathekayo kunye nomthwalo othile (ngokuqhelekileyo i-3000kg) kwaye uyigcine ixesha elithile. Emva kokuba umthwalo ususiwe, umlinganiselo womthwalo kwindawo yokuthotywa yi-Brinell hardness value (HB).
2) Ukuqina kweRockwell (HR)
Xa i-HB>450 okanye isampulu incinci kakhulu, uvavanyo lobulukhuni be-Brinell alunakusetyenziswa kwaye endaweni yokulinganisa ubulukhuni be-Rockwell kufuneka kusetyenziswe. Isebenzisa i-cone ye-diamond ene-vertex angle ye-120 ° okanye ibhola yensimbi kunye nobubanzi be-1.59mm kunye ne-3.18mm ukucinezela ebusweni bezinto eziza kuvavanywa phantsi komthwalo othile, kwaye ubunzima bezinto eziphathekayo bufumaneka. ubunzulu bokujongwa. Ngokobulukhuni bemathiriyeli yovavanyo, inokubonakaliswa ngezikali ezintathu ezahlukeneyo:
I-HRA: Bubulukhuni obufunyenwe ngokusebenzisa umthwalo we-60kg kunye ne-diamond cone indenter, kwaye isetyenziselwa izinto ezinobunzima obuphezulu kakhulu (ezifana ne-cemented carbide, njl.).
I-HRB: Bubulukhuni obufunyenwe ngokusebenzisa umthwalo we-100kg kunye nebhola yentsimbi eqinile kunye nobubanzi be-1.58mm. Isetyenziselwa izinto ezinobulukhuni obuphantsi (njengensimbi ene-annealed, iron cast, njl.).
I-HRC: Bubulukhuni obufunyenwe ngokusebenzisa umthwalo we-150kg kunye ne-diamond cone indenter, kwaye isetyenziselwa izinto ezinobunzima obuphezulu (ezifana nentsimbi eqinile, njl.).
3) Vickers hardness (HV)
Sebenzisa i-indenter ye-diamond square cone kunye nomthwalo ongaphantsi kwe-120kg kunye ne-angle ye-vertex ye-136 ° ukuze ucinezele kumphezulu wezinto eziphathekayo, kwaye uhlukanise indawo engaphezulu kwendawo yokungena ngexabiso lomthwalo ukufumana ixabiso lobulukhuni beVickers (HV). ).
2. Iintsimbi ze-ferrous kunye ne-non-ferrous
1. Intsimbi yentsimbi
Ibhekisa kwialloyi yentsimbi kunye nentsimbi. Okufana nentsimbi, i-iron yehagu, i-ferroalloy, i-iron etyhidiweyo, njl.
Intsimbi yehagu ibhekisa kwimveliso eyenziwe ngokunyibilikisa intsimbi ekrwada kwisithando somlilo, esisetyenziswa ikakhulu ukwenza intsimbi kunye nokuphosa.
Ukunyibilikisa intsimbi yehagu etyhidiweyo kwisithando sokunyibilikisa isinyithi ukufumana intsimbi etyhidiweyo (ingxubevange yentsimbi-ekhabhoni elulwelo enomxholo wekhabhoni engaphezu kwe-2.11%), kunye nokugalela ulwelo lwentsimbi ekujuleni, olu hlobo lwentsimbi lubizwa ngokuba yintsimbi etyhidiweyo.
I-Ferroalloy yi-alloy eyenziwe ngentsimbi, i-silicon, i-manganese, i-chromium, i-titanium kunye nezinye izinto. I-Ferroalloy yenye yezinto ezisetyenziselwa ukwenza intsimbi. Isetyenziswe njenge-deoxidizer kunye ne-alloy element yokongeza kwintsimbi ngexesha lentsimbi.
I-alloys ye-iron-carbon enomxholo wekhabhoni engaphantsi kwe-2.11% ibizwa ngokuba yintsimbi, kwaye intsimbi ifumaneka ngokubeka intsimbi yehagu yokwenza isinyithi kwisithando somlilo sentsimbi kwaye siyinyibilikise ngokwenkqubo ethile. Iimveliso zetsimbi ziquka i-ingots zensimbi, ii-slabs eziqhubekayo zokuphosa kunye nokuphosa ngokuthe ngqo kwiindidi ezahlukeneyo zentsimbi. Ngokuqhelekileyo, intsimbi ngokuqhelekileyo ibhekisela kwintsimbi eqengqelekayo kwiimveliso zentsimbi.
2. Iintsimbi ezingenayo i-ferrous
Ikwaziwa njengeentsimbi ezingezizo i-ferrous, ibhekisa kwisinyithi kunye ne-alloys ngaphandle kwesinyithi, njenge-copper, i-tin, ilothe, i-zinc, i-aluminiyam, kunye nobhedu, ubhedu, i-alloys ye-aluminiyam, kunye ne-alloys. Ukongeza, i-chromium, i-nickel, i-manganese, i-molybdenum, i-cobalt, i-vanadium, i-tungsten, i-titanium, njl. Ezi zinyithi zisetyenziswa ikakhulu njengezongezo ze-alloy ukuphucula ukusebenza kwesinyithi. Phakathi kwazo, i-tungsten, i-titanium, i-molybdenum, njl. ngokuqhelekileyo isetyenziselwa ukuvelisa iimela. i-alloy eqinile. Ezi zimbiwa zingentla zingeyontsimbi zibizwa ngokuba ziintsimbi zemizi-mveliso, ukongeza kwiintsimbi ezixabisekileyo: iplatinum, igolide, isilivere, njl.
3. Ukuhlelwa kwentsimbi
Ukongeza kwintsimbi kunye nekhabhoni, izinto eziphambili zentsimbi ziquka i-silicon, i-manganese, isulfure kunye ne-phosphorus.
Kukho iindlela ezahlukeneyo zokuhlela intsimbi, kwaye iindlela eziphambili zezi zilandelayo:
1. Ihlelwa ngokomgangatho
(1) Intsimbi eqhelekileyo (P≤0.045%, S≤0.050%)
(2) Intsimbi ekumgangatho ophezulu (zombini i-P kunye ne-S≤0.035%)
(3) Umgangatho ophezulu wentsimbi (P≤0.035%, S≤0.030%)
2. Ukuhlelwa ngokwemichiza
(1) Intsimbi yekhabhoni: a. Intsimbi yekhabhoni ephantsi (C≤0.25%); b. Intsimbi yekhabhoni ephakathi (C≤0.25～0.60%); c. Intsimbi yekhabhoni ephezulu (C≤0.60%).
(2) Intsimbi yengxubevange: a. Insimbi ye-alloy ephantsi (umxholo opheleleyo wezinto ezidibeneyo ≤ 5%); b. Insimbi ye-alloy ephakathi (umxholo opheleleyo wezinto ezixutywayo> 5-10%); c. Insimbi ephezulu ye-alloy (umxholo opheleleyo wezinto zokudibanisa> 10% %).
3. Ihlelwa ngokwendlela yokwenza
(1) intsimbi ebunjiweyo; (2) intsimbi etyhidiweyo; (3) intsimbi eshushu; (4) intsimbi etsalwa ngokubanda.
4. Ukuhlelwa ngokwesakhiwo semetallographic
(1) Imeko echasiweyo: a. intsimbi ye-hypoeutectoid (i-ferrite + pearlite); b. intsimbi ye-eutectoid (pearlite); c. intsimbi ye-hypereutectoid (pearlite + cementite); d. Intsimbi ye-Tensitic (pearlite + cementite).
(2) Imeko eqhelekileyo: a. intsimbi yepearlitic; b. intsimbi ye-bainite; c. intsimbi ye-martensitic; d. intsimbi austenitic.
(3) Akukho tshintsho lwesigaba okanye utshintsho lwesigaba
5. Ukuhlelwa ngokwenjongo
(1) Intsimbi yokwakha nobunjineli: a. Intsimbi yesakhiwo sekhabhoni eqhelekileyo; b. Intsimbi yesakhiwo esisezantsi; c. Intsimbi eyomeleziweyo.
(2) Intsimbi yolwakhiwo:
a. Intsimbi yokwenziwa koomatshini: (a) Isinyithi esicinyiweyo nesipholileyo solwakhiwo; 10 (c) Intsimbi yolwakhiwo olusike lula; (d) Iplastikhi ebandayo Intsimbi yokwenza: kuquka intsimbi yesitampu esibandayo kunye nentsimbi yesihloko esibandayo.
b. Intsimbi yasentwasahlobo
c. Ukuthwala intsimbi
(3) Isixhobo sentsimbi: a. carbon isixhobo intsimbi; b. isixhobo sensimbi ye-alloy; c. high-speed isixhobo isixhobo.
(4) Intsimbi yokusebenza ekhethekileyo: a. Intsimbi enganyangekiyo ene-asidi; b. Intsimbi ekwazi ukumelana nobushushu: kubandakanywa intsimbi echasene ne-oxidation, intsimbi yokuqina kobushushu, intsimbi yevalve; c. Intsimbi yokufudumeza kombane; d. Intsimbi ekwaziyo ukunxiba; e. Intsimbi yobushushu obuphantsi ; f. Intsimbi yombane.
(5) Insimbi yokusetyenziswa kobuchwephesha-njengentsimbi yeebhulorho, insimbi yeenqanawa, insimbi yeebhoilers, intsimbi yeenqanawa zoxinzelelo, isinyithi kumatshini wezolimo, njl.
6. Ukuhlelwa okubanzi
(1) Intsimbi eqhelekileyo
a. Intsimbi yesakhiwo seCarbon: (a) Q195; (b) Q215 (A, B); (c) Q235 (A, B, C); (d) Q255 (A, B); (e) Q275.
b. Intsimbi yesakhiwo esisezantsi
c. Intsimbi yesakhiwo eqhelekileyo ngeenjongo ezithile
(2) Intsimbi ekumgangatho ophezulu (kubandakanywa nentsimbi yodidi oluphezulu)
a. Intsimbi yesakhiwo: (a) umgangatho ophezulu we-carbon structural steel; (b) intsimbi yokwakha ingxubevange; (c) intsimbi yomthombo; (d) intsimbi yokusika simahla; (e) intsimbi enentsimbi; (f) umgangatho ophezulu wentsimbi yolwakhiwo ngeenjongo ezithile.
b. Isixhobo sentsimbi: (a) isixhobo sentsimbi yekhabhoni; (b) isixhobo sentsimbi yentsimbi; (c) intsimbi yesixhobo esinesantya esiphezulu.
c. Intsimbi yokusebenza ekhethekileyo: (a) intsimbi enganyangekiyo eneasidi; (b) intsimbi ekwaziyo ukumelana nobushushu; (c) intsimbi yokufudumeza kombane; (d) intsimbi yombane; (e) intsimbi ephezulu yemanganese engagugiyo.
7. Ihlelwa ngendlela yokunyibilikisa
(1) Ngokohlobo lwesithando somlilo
a. Intsimbi yokuguqula: (a) intsimbi yokuguqula iasidi; (b) intsimbi esisiseko yokuguqula. Okanye (a) intsimbi yokuguqula ephantsi; (b) intsimbi yokuguqula esecaleni; (c) intsimbi yokuguqula evuthelwe phezulu.
b. Intsimbi yesithando sombane: (a) intsimbi yombane ye-arc; (b) intsimbi yesithando somlilo se-electroslag; (c) intsimbi yesithando somlilo; (d) vacuum intsimbi yomlilo esetyenziswayo; (e) intsimbi ye-electron beam
(2) Ngokwezinga le-deoxidation kunye nenkqubo yokugalela
a. Intsimbi ebilayo; b. Intsimbi ebuleweyo; c. Intsimbi ebuleweyo; d. Intsimbi ekhethekileyo ebuleweyo.
4. Amagqabantshintshi eendlela zokumelwa kwibakala lam lentsimbi yelizwe lam
Isalathiso sebakala lemveliso luboniswa ngokubanzi ngokudityaniswa koonobumba baseTshayina bepinyin, iisimboli zekhemikhali kunye neenombolo zesiArabhu. Ngoku:
① Izinto zekhemikhali kumabakala entsimbi zimelwe ziisimboli zekhemikhali zamazwe ngamazwe, ezinje ngeSi, Mn, Cr…njl. Izinto ezidityanisiweyo zomhlaba ezinqabileyo zimelwe yi-“RE” (okanye “Xt”).
②Igama lemveliso, ukusetyenziswa, ukunyibilikiswa kunye neendlela zokugalela, njl. njl. zimelwe ngokubanzi ngoonobumba abashunqulelweyo bePinyin yesiTshayina.
③Umxholo wekhemikhali ongundoqo (%) kwintsimbi umelwe ngamanani esiArabhu.
Xa i-alfabhethi yefonetiki yesiTshayina isetyenziselwa ukubonisa igama lemveliso, ukusetyenziswa, iimpawu kunye neendlela zenkqubo, unobumba wokuqala ukhethwa ngokubanzi kwi-alfabhethi yefonetiki yaseTshayina emele igama lemveliso. Xa iphinda iphindwa ngonobumba okhethwe yenye imveliso, unobumba wesibini okanye owesithathu unokusetyenziswa endaweni yoko, okanye unobumba wokuqala oyipinyin wabalinganiswa ababini baseTshayina unokukhethwa ngaxeshanye.
Ukuba akukho onobumba baseTshayina kunye nepinyin ekhoyo okwangoku, iisimboli ezisetyenzisiweyo ngoonobumba besiNgesi.
Isihlanu, ulwahlulo lwendlela yokumelwa kwamabakala entsimbi kwilizwe lam
1. Indlela yokutyunjwa kwentsimbi ye-carbon structural kunye ne-low-alloy high-high-high-strelstructural steel
Intsimbi esetyenzisiweyo ngasentla idla ngokwahlulahlula ngamacandelo amabini: intsimbi eqhelekileyo kunye nentsimbi ekhethekileyo. Indlela yokubonisa ibakala iqulunqwe ngoonobumba baseTshayina be-pinyin benqanaba lesivuno okanye amandla emveliso yentsimbi, ixabiso lendawo yokuvunwa okanye amandla emveliso, umgangatho womgangatho wentsimbi, kunye neqondo le-deoxidation yensimbi, eneneni yenziwe ngamacandelo ama-4.
①Intsimbi yesakhiwo ngokubanzi ithatha unobumba we-pinyin "Q" omele indawo yesivuno. Ixabiso lenqaku lesivuno (iyunithi yiMPa) kunye namabanga asemgangathweni (A, B, C, D, E) kunye nendlela yokukhupha i-deoxidation (F, b, Z, TZ) kunye nezinye iisimboli ezichazwe kwiTheyibhile 1 zenza ibakala ngokulandelelana. Umzekelo: amabakala ensimbi ye-carbon structural achazwa njenge: Q235AF, Q235BZ; I-alloy low-alloy high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-structural standards yensimbi ibonakaliswe njenge: Q345C, Q345D.
I-Q235BZ ithetha ukubulawa kwentsimbi ye-carbon structural enexabiso lesivuno ≥ 235MPa kunye nomgangatho webakala B.
Amabakala amabini e-Q235 kunye ne-Q345 ngawona manqanaba aqhelekileyo ensimbi yobunjineli, amabakala anemveliso enkulu kunye nokusetyenziswa, kunye namabakala asetyenziswa kakhulu. La mabanga mabini afumaneka phantse kuwo onke amazwe ehlabathi.
Kwinqanaba lokubunjwa kwensimbi ye-carbon structural, isimboli "Z" yensimbi ebuleweyo kunye nesimboli "TZ" yensimbi ekhethekileyo ebuleweyo inokushiywa, umzekelo: kwi-Q235 yensimbi kunye nomgangatho C kunye no-D ngokulandelanayo, amabakala kufuneka abe yi-Q235CZ. kunye ne-Q235DTZ, Kodwa inokushiywa njenge-Q235C kunye ne-Q235D.
I-alloy ephantsi-amandla aphezulu ensimbi yesakhiwo ibandakanya intsimbi ebuleweyo kunye nentsimbi ekhethekileyo ebuleweyo, kodwa isimboli esibonisa indlela ye-deoxidation ayongezwanga ekupheleni kwebakala.
②Insimbi ekhethekileyo yesakhiwo ngokuqhelekileyo ibonakaliswe ngesimboli "Q" emele indawo yokuvelisa yentsimbi, ixabiso lendawo yokuvunwa, kunye neempawu ezimele ukusetyenziswa kwemveliso echazwe kwiThebhile 1, umzekelo: ibakala lensimbi kwiinqanawa zoxinzelelo libonakaliswa. njenge "Q345R"; ibakala lentsimbi yesimo sezulu lichazwa njengeQ340NH; I-Q295HP imigangatho yentsimbi yeesilinda zegesi zokuwelda; Q390g amabakala entsimbi kwiibhoyila; Q420q amabakala entsimbi yeebhulorho.
③Ngokweemfuno, ukuchongwa kwentsimbi yolwakhiwo olusezantsi-injongo-jikelele-ephantsi-amandla aphezulu kunokusebenzisa amanani amabini ama-Arabhu (ebonisa umndilili wekhabhoni umxholo, kwiinxalenye ngeshumi lamawaka) kunye neesimboli zekhemikhali, ezichazwe ngokulandelelana; intsimbi ekhethekileyo yealloyi ephezulu yolwakhiwo lwentsimbi. Igama lebrendi linokubonakaliswa ngokulandelelana ngokusebenzisa amanani amabini ama-Arabhu (ebonisa umxholo wekhabhoni ophakathi kwiindawo ngeshumi lamawaka), iisimboli zekhemikhali, kunye nezinye iisimboli ezichaziweyo ezimele ukusetyenziswa imveliso.
2. Indlela yokumelwa yensimbi ephezulu ye-carbon structural steel kunye ne-high-quality carbon spring steel
Umgangatho ophezulu we-carbon structural steel ithatha indibaniselwano yamanani amabini aseArabhu (ebonisa umxholo wekhabhoni ophakathi kwishumi lamawaka) okanye iinombolo zesi-Arabhu kunye neesimboli zezinto.
① Kwintsimbi ebilayo kunye nentsimbi ebuleweyo, iisimboli "F" kunye no "b" zongezwa ngokulandelelana ekupheleni kwebanga. Ngokomzekelo, ibakala lokubilisa intsimbi kunye ne-carbon content ye-0.08% ichazwa njenge "08F"; ibakala lentsimbi ye-semi-killed kunye ne-carbon content ye-0.10% ichazwa njenge "10b".
② Intsimbi ebulewe (S, P≤0.035% ngokulandelanayo) ngokuqhelekileyo ayiphawulwanga ngeempawu. Umzekelo: intsimbi ebuleweyo enomndilili wekhabhoni oyi-0.45%, ibakala layo lichazwa njenge “45”.
③ Kwiintsimbi zekhabhoni ezikumgangatho ophezulu ezinomxholo ophezulu wemanganese, isimboli se-manganese yongezwa emva kweenombolo zesi-Arabhu ezibonisa umndilili wekhabhoni. Umzekelo: intsimbi ene-carbon content ye-0.50% kunye nomxholo we-manganese we-0.70% ukuya kwi-1.00%, ibakala layo lichazwa ngokuthi "50Mn".
④ Kwi-high-grade high-quality carbon structural steel (S, P≤0.030% ngokulandelanayo), yongeza isimboli "A" emva kwebanga. Umzekelo: i-high-grade high-quality carbon structural steel kunye ne-carbon content ye-0.45%, ibakala layo lichazwa njenge "45A".
⑤I-Super-grade high-quality carbon structural steel (S≤0.020%, P≤0.025%), yongeza isimboli "E" emva kwebakala. Umzekelo: umgangatho ophezulu we-carbon structural steel kunye ne-carbon content ye-0.45%, ibakala layo lichazwa njenge "45E".
Indlela yokumelwa yemigangatho yentsimbi ye-carbon spring ephezulu iyafana neyomgangatho ophezulu we-carbon structural steel grade (65, 70, 85, 65Mn steels zikhona kuzo zombini imigangatho ye-GB / T1222 kunye ne-GB / T699 ngokulandelanayo).
3. Indlela yokutyunjwa kwe-alloy structural iron kunye ne-alloy spring steel
① I-alloy structural steel grade imelwe ngamanani esi-Arabhu kunye neesimboli eziqhelekileyo zekhemikhali.
Sebenzisa amanani amabini esi-Arabhu ukubonisa i-avareji yesiqulatho sekhabhoni (ngamacandelo kwiwaka ngalinye), uze uyibeke entlokweni yebakala.
Indlela yokubonakalisa umxholo we-alloy element ilandelayo: xa umxholo we-avareji ungaphantsi kwe-1.50%, i-element kuphela ibonakaliswe kwi-brand, kwaye umxholo awuboniswanga ngokubanzi; Umxholo we-alloy ophakathi yi-1.50%～2.49%, 2.50%～3.49%, 3.50%～4.49%, 4.50%～ 5.49%, …, ebhalwe ngokuhambelanayo njenge-2, 3, 4, 5 … emva kwezinto zokudibanisa.
Umzekelo: umxholo ophakathi wekhabhoni, ichromium, imanganese, kunye nesilicon ngokulandelelana kwazo 0.30%, 0.95%, 0.85%, kunye ne-1.05% yentsimbi yealloy. Xa umxholo we-S no-P ngu-≤0.035%, ibakala lichazwa njenge-"30CrMnSi".
I-high-quality high-quality alloy structural steel (S, umxholo we-P ≤0.025% ngokulandelanayo), iboniswe ngokudibanisa isimboli "A" ekupheleni kwebanga. Umzekelo: “30CrMnSiA”.
Kwi-special-grade high-quality alloy structural steel (S≤0.015%, P≤0.025%), yongeza isimboli "E" ekupheleni kwebakala, umzekelo: "30CrM nSiE".
Kwimigangatho ekhethekileyo ye-alloy structural steel, isimboli emele ukusetyenziswa kwemveliso echazwe kwiThebhile 1 kufuneka yongezwe kwintloko (okanye umsila) webakala. Umzekelo, intsimbi ye-30CrMnSi isetyenziselwa ngokukodwa izikrufu ze-riveting, inombolo yentsimbi ichazwa njenge-ML30CrMnSi.
②Indlela yokubonakalisa ibakala lentsimbi yasentwasahlobo ye-alloy iyafana naleyo ye-alloy structural steel.
Umzekelo: umxholo oqhelekileyo wekhabhoni, i-silicon, kunye ne-manganese ngokulandelanayo ngu-0.60%, 1.75%, kunye ne-0.75% yensimbi yasentwasahlobo, kwaye ibakala layo lichazwa ngokuthi "60Si2Mn". Kwi-high-grade high quality spring steel steel, yongeza isimboli "A" ekupheleni kwebakala, kwaye ibakala layo lichazwa njenge "60Si2MnA".
4. Ibakala lentsimbi yokusika yamahhala
Izixhobo ze-Xinfa CNC zinomgangatho obalaseleyo kunye nokuqina olomeleleyo, ngeenkcukacha, nceda ujonge: https://www.xinfatools.com/cnc-tools/
Ixesha lokuposa: Jun-21-2023
