Gabatarwa da Aikace-aikace na SCH12 Material

SCH12 zafi ne na austenitic -karfe mai juriya a karkashin ka'idojin masana'antu na Japan, da farko yana bin JIS G 5122 Heat{3}}Karfe da zafi{4}Resistant Alloy Castings, kuma an haɗa shi cikin ma'aunin CNS G 3093 na China. A matsayin babban zafi na chromium{7}}nickel- ƙarfe simintin gyare-gyare, abu ne na yau da kullun don simintin gyare-gyare na kayan aikin masana'antu masu zafi saboda kyawun ingancinsa{10}masu zafi, kwanciyar hankali na zafi da wasu juriya na lalata, kuma yayi daidai da ƙimar bakin karfe SUS302B.

I. Abubuwan Abubuwan Mahimmanci na SCH12
1. Haɗin Sinadari (Mass Fraction,%)
Yana da babban chromium{0}} nickel composit alloy tsarin, tare da molybdenum (max 0.5%) kara kamar yadda ake bukata don daidai daidaita zafi juriya da inji Properties. Takamammen kewayon abun ciki shine kamar haka:

2. Maɓallai Kayan Kayan Aiki (Kamar yadda - simintin gyare-gyare )

Yana nuna kyawawan kaddarorin injina, yana biyan buƙatun ɗaukar nauyi{0}ƙarƙashin yanayin aiki mai girma{1}} ba tare da wani ƙwaƙƙwaran filastik ba:

Ƙarfin Haɓaka: Mafi Girma ko daidai da 235 N/mm² (MPa)

Tensile Strength:>=490 N/mm² (MPa)

Tsawaitawa: Yafi ko daidai da 23%

Brinell Hardness: Kimanin 123 HB (bayan maganin zafi)

3. Core Physical and Heat -Ayyukan Juriya

Ƙididdigar Ƙwararren Ƙwararrun Ƙwararru: 16.2 × 10⁻⁶ / digiri a 0 - 100 digiri , 20.2 × 10⁻⁶ / digiri a digiri 0-650 , tare da halayen haɓakar thermal wanda ya dace da yanayin aiki mai zafi na cyclic;

Zazzabi{0}Mai tsayin daka: Mai iya aiki mai tsayin tsayin lokaci a yanayin zafi sama da digiri 650, wanda ya dace da matsakaici da babba{3}} kayan aikin masana'antu masu zafi;

Tsarin Metallographic: Matrix Austenitic tare da juriya mai kyau na thermal, ba mai saurin fashewa ba saboda canjin zafin jiki kwatsam;

Sauran Kayayyakin: Ba - Magnetic, mafi kyawun simintin gyare-gyare, kuma ana iya jefa shi cikin hadaddun abubuwa masu siffa{1}.

4. Juriya na Lalata

Dogaro da babban abun ciki na chromium na 18% -23%, fim ɗin Cr₂O₃ oxide mai yawa yana samuwa a sauƙaƙe akan saman, yana ba da juriya mai kyau.kafofin watsa labarai na alkaline da yanayin lalata oxidative, kuma yana iya jure wa zazzagewa ta hanyar kafofin watsa labaru masu rauni a cikin mahallin masana'antu. Duk da haka, juriya ta lalata za ta ragu a cikin wurare masu karfi masu lalata kamar su acid mai karfi da gishiri mai chloride.

II. Yanayin Aikace-aikace na SCH12

A matsayin karfen siminti mai juriya{0}, SCH12 ya fi dacewa da simintin kayan aikin masana'antu a ƙarƙashinmatsakaici da babba -zazzabi, yanayin hawan keke mai zafi wanda ke ɗaukar wasu nau'ikan inji, musamman don hadaddun abubuwan da aka samar ta hanyar jefawa. Filayen aikace-aikacen sa na yau da kullun sune kamar haka:

1. Filin Injin Wuta

Yana daya daga cikin mahimman kayan donturbine ruwan wukake, daidaitawa da yanayin yanayin aiki mai girma -zazzabi na injin tururi, kuma yana iya jure tsananin tururi mai zafi, hawan zafi da kuma ƙarfin centrifugal. Ana iya ƙara haɓaka juriyar gajiyawarsa da rayuwar sabis ta hanyar ingantattun hanyoyin yin simintin gyaran kafa. Hakanan ana amfani dashi don matsakaita da babba{4}} ɓangarorin simintin zafin jiki na injin turbin gas da janareta.

2. Filin Jirgin Ruwa da Ruwan Ruwa

Ana iya sanya shi a cikibabban - simintin zafiga masana'antu tukunyar jirgi da matsa lamba wutar lantarki tukunyar jirgi, kamar ciki tanderu goyon baya, zafi{0} resistant liners, connecting simintin gyare-gyare, da dai sauransu An daidaita shi zuwa aiki zafin jiki sama da 300 digiri, matsa lamba hawan keke da alkaline ingancin ruwa a cikin tukunyar jirgi (sosai da jituwa tare da yanayin aiki na matsa lamba lantarki tukunyar jirgi insulators da aka ambata a baya), saduwa da zafi juriya, sealing kayan aiki da injibea.

3. Filin Kayayyakin Ƙarfe da Zafi

Ana amfani da shi donsimintin gyaran jiki na tanderu, goyan bayan zafi{0}, kwandunan abu/traysna murhun ƙarfe na ƙarfe da tanderun jiyya masu zafi, waɗanda za su iya jure yanayin zafi mai ƙarfi{0} da hawan keke a cikin tanderun, da kuma tsayayya da zazzagewar yanayi mai laushi a cikin tanderun, yana tabbatar da tsayin{1}} aiki na kayan aiki.

4. Babban Masana'antu -Kayan Zazzabi

Ya dace damatsakaita da babba - famfon zafin jiki da simintin bawul, simintin bututun iska mai zafi, zafi{1}} sassa masu juriya na kayan bushewaa cikin masana'antun sinadarai da kayan gini, musamman dacewa da rikitattun sassa na tsari waɗanda ke buƙatar ƙirƙirar simintin gyare-gyare kuma suna da buƙatu don ƙarfin zafi mai ƙarfi da kwanciyar hankali.

III. Muhimman Fa'idodi da Mahimman Bayanan Aiki na Kayan

1. Babban Amfani

Kyakkyawan juriya mai zafi: Austenitic matrix hade tare da high chromium - nickel gami yana haifar da jinkirin ƙarfi attenuation a babban yanayin zafi da kuma mai kyau thermal gajiya juriya, dace da dogon{1}}lokaci high-zazzabi yanayin aiki cyclic;

Babban Castability: Ana iya jefa shi cikin hadaddun abubuwa masu siffa - ba tare da rikitaccen aiki na gaba ba, rage farashin samarwa da masana'anta;

Kyawawan Kayayyakin Injini Mai Kyau: Yana da duka ƙarfin ƙarfi da filastik, yana iya saduwa da buƙatun kayan aikin injiniya yayin da yake jure yanayin zafi, kuma ba shi da haɗari ga fashe;

Wasu Juriya na Lalata: Mai jurewa ga yanayin alkaline da ƙananan oxidative, daidaitawa da buƙatun lalata na mafi yawan ma'aunin zafi na masana'antu{0}.

2. Mabuɗin Aikace-aikace

Wannan kayan shinejefa karfe, galibi ana amfani da su don abubuwan simintin gyare-gyare, ba don bayanan martaba kamar faranti da sanduna ba;

Juriya ga lalata mai ƙarfi (acid mai ƙarfi, gishiri mai ƙarfi, oxidation mai ƙarfi) gabaɗaya ne. Don irin waɗannan yanayin aiki, yakamata a yi amfani da mayafin lalata ko kuma a maye gurbin kayan gami mafi girma{2};

Ko da yake babban - juriya na oxidation na zafi yana da kyau, a cikin matsanancin yanayin zafi sama da digiri 900, yanayin fim ɗin oxide yana buƙatar bincika akai-akai don hana lalacewar matrix;

Bayan yin simintin gyare-gyare, za'a iya ƙara inganta kayan aikin injinsa masu zafi da yanayin zafi ta hanyoyin magance zafi kamar maganin magancewa da kuma tsufa.