Ndeupi Rudzi rweSimbi inonzi 4140?

4140 simbi yakakurumbira alloy simbi inozivikanwa nekusimba kwayo, kusimba, uye kuita zvakasiyana. Iyo ndeye mhuri yechromium-molybdenum simbi, ichipa yakasarudzika musanganiswa wemakanika zvivakwa zvinoita kuti ive sarudzo inosarudzika yekushandiswa kwemaindasitiri. Mainjiniya, vanogadzira, uye vagadziri vanoshandisa zvakanyanya simbi iyi kune zvese kubva pazvikamu zvemotokari kusvika kune zvemuchina.

Muchinyorwa ichi cheSEO, sakysteel inopa tarisiro yakazara ye4140 simbi, kusanganisira makemikari ayo, mechanical properties, kupisa kupisa maitiro, uye kushandiswa kwakajairika.

Classification ye4140 Steel

4140 isimbi yakaderera alloy inowira pasi peiyo SAE-AISI classification system. Inozivikanwawo seAISI 4140, EN19 (muEurope),uyeSCM440 (muJapan). Iro zita rekuti "4140" rinoreva kune yakatarwa alloy zvemukati:

  • "41" inoratidza chromium-molybdenum simbi

  • "40" inomiririra inenge iine kabhoni yemukati (0.40%).

4140 simbi haisi simbi isina tsvina, sezvo isina chromium yakakwana yekupa corrosion resistance. Pane kudaro, inokosheswa nekuda kwesimba rayo remagetsi uye kuomarara mushure mekurapwa kwekupisa.

Kemikari Kuumbwa kwe4140 Steel

Iyo kemikari inoumbwa ye4140 ndiyo inoipa iyo yakagadziridzwa makina zvivakwa. Mahara akajairika anosanganisira:

  • Kabhoni (C):0.38% - 0.43%

  • Chromium (Cr):0.80% - 1.10%

  • Manganese (Mn):0.75% - 1.00%

  • Molybdenum (Mo):0.15% - 0.25%

  • Silicon (Si):0.15% - 0.35%

  • Phosphorus (P):≤ 0.035%

  • Sarufa (S):≤ 0.040%

Zvinhu izvi zvinoshanda pamwechete kuwedzera kuomarara, kupfeka kuramba, uye kusimba kwese, zvichiita kuti 4140 ive yekuenda-kune zvinhu zveinoda michina zvikamu.

Mechanical Properties ye4140 Steel

4140 inopa inokatyamadza huwandu hwemakina zvivakwa, kunyanya mushure mekurapa kwakakodzera kupisa. Izvi zvinosanganisira:

  • Tensile Simba:Kusvikira ku1100 MPa (160 ksi)

  • Goho Simba:Around 850 MPa (123 ksi)

  • Elongation paBreak:Anenge 20%

  • Kuoma:Kazhinji 197 kusvika 235 HB mune annealed condition, kusvika ku50 HRC mushure mekudzima nekupisa.

Aya maitiro anogona kusiyana zvichienderana nechimiro chesimbi (bar, plate, forged) uye mamiriro ekurapa kupisa.

Kupisa Kurapa kwe4140 Steel

Kurapa kwekupisa ndiyo nzira yakakosha iyo inowedzera kushanda kwe4140 simbi. Simbi inogona kuita zvinotevera maitiro:

  1. Annealing
    Zvishoma nezvishoma zvakatonhodzwa kubva ku850 ° C kuti uvandudze machinability uye kuderedza kushushikana kwemukati. Izvi zvinokonzera chimiro chakapfava chine ductility yakagadziridzwa.

  2. Normalizing
    Kupisa kusvika ku870 ° C kunatsa chimiro chezviyo. Inopa kuenzana kwesimba uye kuoma.

  3. Kudziya uye kudziya
    Yakaomeswa nekudziisa kusvika pa845°C uye nekukasira kutonhora muoiri kana mumvura, ichiteverwa nekudziya kusvika kumazinga ekuoma kwaunoda. Izvi zvinowedzera zvakanyanya simba uye kupfeka kusagadzikana.

  4. Kuderedza Stress
    Inoitwa kutenderedza 650 ° C kuderedza kushushikana kwasara kubva mukugadzira kana welding.

Pa sakysteel, tinopa4140 simbimumamiriro akasiyana-siyana ekupisa-kupisa zvichienderana nezvinodiwa nevatengi, kuve nechokwadi chekushanda kwakanyanya mukushandisa kwako.

Zvakanakira zve4140 Steel

  • High Strength-to-Weight Ratio:Ideal for weight-sensitive applications.

  • Good Fatigue Resistance:Inomira cyclic kurodha, yakakodzera magiya uye shafts.

  • Kwakanaka Kuoma:Inowana kuoma kwakanyanya mushure mekudzima.

  • Machinability:Zviri nyore machina mu annealed kana normalized mamiriro.

  • Weldability:Inogona kuve yakashongedzwa neyakafanira preheating uye post-weld kurapwa.

Aya mabhenefiti anoita 4140 simbi sarudzo yehupfumi kune akawanda akanyanya-kushushikana engineering maapplication.

Zvishandiso zve4140 Steel

Nekuda kwesimba rayo remuchina uye kuita zvakasiyana-siyana, 4140 simbi inoshandiswa mumhando dzakasiyana dzemaindasitiri:

Automotive Industry

  • Axles

  • Crankshafts

  • Magiya

  • Magumbo ekutungamirira

Mafuta uye Gasi

  • Dhora makora

  • Tool joints

  • Kubatanidza tsvimbo

Aerospace

  • Kudzika giya zvikamu

  • Shafts

  • High-stress structural parts

Industrial Machinery

  • Couplings

  • Forged components

  • Die holders

  • Spindles

At sakysteel, takapa4140 simbizvigadzirwa zvevatengi muzvikamu izvi, zvinopa mhando yakavimbika uye chaiyo kugadzirisa.

Sei 4140 Inofananidzwa Nemamwe Simbi

4140 vs. 1045 Carbon Steel:
4140 inopa zvirinani kupfeka kuramba uye yakakwirira tensile simba nekuda kwealloying zvinhu. 1045 yakachipa asi haina kusimba.

4140 vs. 4340 Simbi:
4340 ine yakakwira nickel yemukati, inopa zvirinani kuomarara uye kuneta kuramba. 4140 inonyanya kudhura-inoshanda kune zvakajairika-chinangwa kushandiswa.

4140 vs. Stainless Simbi (semuenzaniso, 304 kana 316):
Stainless simbi dzinopa corrosion resistance asi simba rakaderera. 4140 inodiwa mune yakakwira-mutoro maapplication pasina kuratidzwa kune inoora nharaunda.

Mafomu Anowanikwa pa sakysteel

sakysteel inopa 4140 simbi mune zvinotevera zvigadzirwa mafomu:

  • Round Bars (Hot Rolled, Cold Drawn, Peeled)

  • Flat Bars uye Plates

  • Forged Blocks uye Rings

  • Hollow Bars uye Tubes (pakukumbira)

  • Cheka-kusvika-saizi chaiyo ma blanks

Zvese zvigadzirwa zviripo neEN10204 3.1 zvitupa, uye isu tinopawo CNC machining uye kupisa masevhisi ekurapa.

Mhedziso

4140 isimbi inoshanda zvakasiyana-siyana, yakakwirira-inoita alloy inosangana nezvinodiwa zveakasiyana anoda maapplication. Kusanganiswa kwayo kwesimba, kuoma, uye mutengo-kushanda kunoita kuti ive chinhu chinofarirwa kune mainjiniya emagetsi nevagadziri pasi rese.

Kunyangwe iwe uchida zvekushandisa zvakasvibirira kana zvakapedzwa zvikamu,sakysteelishamwari yako yaunovimba nayo ye4140 alloy simbi. Bata yedu tekinoroji timu nhasi kuti ukurukure zvaunoda uye ugamuchire yakarongedzwa quote.

Nguva yekutumira: Jul-29-2025