Nhanganyaya uye Mashandisirwo eSCH12 Material

SCH12 is an austenitic heat-resistant cast cast iron under the Japanese industrial standards, inofambirana neJIS G 5122 Heat-Resistant Steel and Heat-Resistant Alloy Castings, uye inosanganisirwawo muChina's CNS G 3093 standard. Se chromium yakakwira-nickel heat-resistant cast iron, inowanzoshandiswa pakugadzira-tembiricha yemumaindasitiri nekuda kwekunaka kwayo{10}}kunogadzirwa kwematembiricha, kugadzikana kwemafuta uye kumwe kusaita ngura, uye zvakaenzana negiredhi reStainless steel SUS302B.

I. Core Material Properties yeSCH12
1. Kuumbwa kweKemikari (Mass Fraction, %)
Inosanganisira core chromium-nickel composite alloy system, ine molybdenum (max 0.5%) yakawedzerwa sezvinodiwa kunyatso gadzirisa kupisa kupisa uye michina yemagetsi. Iyo chaiyo yekuumbwa siyana ndeyekutevera:

2. Makiyi Mechanical Properties (Se-kukandwa)

Inoratidza zvinhu zvakanakisa zvemuchina, inoenderana-inotakura zvinodiwa pasi pe-tembiricha yekushanda yakanyanya pasina kudzikamisa kwepurasitiki:

Goho Simba: Yakakura kudarika kana kuenzana ne235 N/mm² (MPa)

Tensile Simba: Yakakura kupfuura kana yakaenzana ne490 N/mm² (MPa)

Elongation: Yakakura kupfuura kana yakaenzana ne23%

Brinell Kuoma: Inenge 123 HB (mushure mekurapa kwekupisa)

3. Hunhu Hwemuviri uye Kupisa-Zvinhu Zvisingachinji

Thermal Expansion Coefficient: 16.2 × 10⁻⁶/ dhigirii pa 0-100 dhigirii, 20.2×10⁻⁶/ dhigirii pa 0-650 dhigirii, ine hunhu hwekuwedzera hwekupisa hwakakodzera kune yakakwirira-tembiricha cyclic kushanda mamiriro;

Kupisa-Kusingachinji Tembiricha: Inokwanisa kushanda-nguva yakareba yakagadzikana patembiricha iri pamusoro pe650 degrees, inoshanda kumidziyo yepakati nepamusoro-yemumaindasitiri;

Metallographic Structure: Austenitic matrix ine yakanaka yekupisa kuneta kuramba, isingawanzo kuputika nekuda kwekushanduka kwekushisa kamwe kamwe;

Zvimwe Zvivakwa: Zvisiri-magineti, zvinokandwa zvakanakisa, uye zvinogona kukandwa muzvikamu zvakaoma-zvakaumbwa.

4. Corrosion Resistance

Kuvimbika pane yakakwira chromium ye18% -23%, dense Cr₂O₃ oxide firimu inoumbwa zviri nyore pamusoro, ichipa kumira kwakanakaalkaline media uye mild oxidative corrosion nharaunda, uye inogona kutsungirira kukukurwa nevezvenhau vasina kusimba munzvimbo dzemaindasitiri. Nekudaro, kushorwa kwayo kunodzikira munzvimbo dzakasimba dzinoparadza senge yakasimba acids uye yakakwira chloride munyu.

II. Mamiriro ekushandisa eSCH12

Sesimbi- isingadziviriri simbi inokandwa, SCH12 inonyanya kukodzera kugadzirwa kwemidziyo yemumaindasitiri pasi pe.zvepakati nepamusoro-tembiricha, mabhasikoro anopisa anotakura zvimwe zvinhu, kunyanya kune zvikamu zvakaoma zvinoumbwa nekukanda. Mamiriro ayo akajairika ekushandisa ndeaya anotevera:

1. Simba Machinery Field

Icho chimwe chezvinhu zvakakosha zvesteam turbine blades, kuchinjira kune-tembiricha yenzvimbo yekushanda yematurbines anopfungaira, uye inokwanisa kushingirira kutsvairwa kwemhepo-inopisa yakanyanya, kuchovha bhasikoro uye mechanical centrifugal force. Kuramba kuneta kwayo uye hupenyu hwesevhisi hunogona kuvandudzwa kuburikidza neakagadziridzwa maitiro ekukanda. Inoshandiswawo kune zvepakati nepamusoro{4}}zvinokandwa zvinokandwa zvematurbine egasi nemajenareta.

2. Boiler uye Pressure Vessel Field

Inogona kugadzirwatembiricha-pamusorozvemaindasitiri mabhoilers uye anomanikidza mabhaira emagetsi, akadai sezvitsigiso zvechoto chemukati, kupisa{0}}anodzivirira liner, kubatanidza castings, etc. Inochinjirwa kune tembiricha yekushanda inopfuura 300 degree, pressure cycling uye alkaline mvura yemhando yenzvimbo mumaboilers (inoenderana zvakanyanya nemamiriro ekushanda e pressure electric boiler insulators, yakambotaurwa), inosangana nezvinodiwa zvema mechanical boiler insulators, inosangana nezvinodiwa zvema mechanical boiler insulators, yambotaurwa

3. Metallurgical uye Heat Treatment Equipment Field

Inoshandiswa kunekuumbwa kwechoto, -zvitsigiso zvinodzivirirwa, matengu emidziyo/matireyizvemasimbi esimbi nemavira ekupisa kupisa, izvo zvinokwanisa kumira-tembiricha yemwaranzi yekupisa uye kutenderera kwemafuta muchoto, uye kudzivirira kukukurwa nemhepo ine ngura iri muchoto, zvichiita kuti{1}}zvishande zvakagadzikana kwenguva refu.

4. General Industrial High-Temperature Equipment

Inoshanda kunepakati nepamusoro-pombi yekupisa nemavharuvhu, mapombi epombi inopisa, kupisa{1}}zvisingachinji zvemidziyo yekuomesamumaindasitiri emakemikari nemidziyo yekuvakisa, kunyanya akakodzera mativi akaomarara anoda kuumbwa uye ane zvinodiwa pakusimba kwepamusoro-kusimba nekudzikama kwemafuta.

III. Yakakosha Yakanakira uye Mashandisiro Akakosha Mapoinzi eChinyorwa

1. Hunhu Hunokosha

Yakanakisa Heat Resistance: The austenitic matrix yakasanganiswa nehigh chromium-nickel alloy inoita kuti simba rifambe zvishoma pane tembiricha yakakwira uye yakanaka yekupisa kusaita kuneta, inokodzera kwenguva refu-yenguva yakareba{2}}tembiricha yecyclic kushanda mamiriro;

Superior Castability: Inogona kukandwa muzvikamu zvakaoma-zvisina kuomarara zvinozogadziriswa, kuderedza kugadzirwa nemitengo yekugadzira;

Yakanaka Yakakwana Mechanical Properties: Iyo ine zvese zvakakwirira simba uye purasitiki, inogona kusangana nemichina mitoro zvinodiwa nepo ichishingirira tembiricha yakakwira, uye isingatani kuputsika;

Imwe Corrosion Resistance: Inoshingirira kune alkaline uye zvakapfava oxidative nharaunda, ichichinjika kune corrosion zvinodiwa munzvimbo zhinji dzemaindasitiri-tembiricha.

2. Pfungwa Huru dzekushandisa

Nyaya iyicast steel, inonyanya kushandiswa kune zvakakandwa zvikamu, kwete yemaprofile akakungurutswa senge mahwendefa nemabhawa;

Kupokana kwayo nekuora kwakasimba (asidhi yakasimba, munyu wakawanda, oxidation yakasimba) inowanzoitika. Pamamiriro ezvinhu akadai ekushanda, anti{1}}mabhanhire ekuora anofanira kushandiswa kana kuti pamusoro-giredhi alloy zvinhu zvinofanirwa kutsiviwa;

Kunyange zvazvo yakakwira-kuramba kwe oxidation yetembiricha yakanaka kwazvo, munzvimbo dzinopisa-pamusoro petembiricha inodarika 900 degrees , mamiriro emufirimu weoxide wepasi rinoda kuongororwa nguva nenguva kudzivirira kukuvara kwematrix;

Mushure mekukanda, -matembiricha ayo emhando yepamusoro uye kugadzikana kwemafuta anogona kugadziridzwa kuburikidza nemagadzirirwo ekurapa kupisa senge mushonga wekugadzirisa uye kurapwa kwekuchembera.