Introduksion tan Aplikasyon na SCH12 Material

Say SCH12 et sakey ya austenitic heat-resistant cast steel unong ed saray estandarte na industriya na Hapon, ya manunan ontutumbok ed JIS G 5122 Heat-Resistant Steel tan Heat-Resistant Alloy Castings, tan kaiba met ed estandarte na China ya CNS G 3093. Bilang sakey a high chromium-nickel heat-resistant cast steel, saya so kaslakan a materyales parad saray casting na atagey-temperatura iran kagawaan ed industriya lapud ekselentin atagey-temperaturan mekanikal a kablian to, thermal stability tan pigaran resistensya ed corrosion, tan mipara itan ed stainless steel grade S2000 US.

I. Saray Manunan Kablian na Materyal na SCH12
1. Kemikal a Komposisyon (Mass Fraction, %)
Walay core chromium-nickel ya komposisyon toite alloy system, ya walay molybdenum (max 0.5%) ya inyarum no nakaukolan pian eksakton naregula so heat resistance tan mechanical properties. Say espisipikon komposisyon et onia:

2. Saray Manunan Mekanikal a Kablian (As-cast)

Ipapanengneng to so ekselentin mekanikal iran kablian, ya makasumpal ed saray kakaukolanen ed panag-awit na karga diad silong na atagey a temperatura na pantratrabaho ya anggapoy signipikantin pakaandi na plastik:

Biskeg na Panag-ani: Mas baleg odino mipara ed 235 N/mm2 (MPa)

Tensile Strength: Mas baleg odino mipara ed 490 N/mm2 (MPa)

Elongation: Mas baleg nen say 23%

Brinell Hardness: Manga 123 HB (kayari na heat treatment)

3. Manunan Pisikal tan Heat-Resistant Properties

Thermal Expansion Coefficient: 16.2×10−6/℃ed 0-100℃, 20.2×10−6/℃ed 0-650℃, ya walay thermal expansion characteristics ya matukoy parad high-temperature cyclic working conditions;

Heat-Resistant Temperatura: Makayarin mankimey ed andukey a panaon ya ag-onkukurang ed temperatura ya onsulok ed 650 degree, ya onaplika ed saray kagawaan ed industriya ya walaan na kapegleyan tan atagey a temperatura;

Metallographic Structure: Austenitic matrix ya walay maong ya thermal fatigue resistance, ya ag mainomay ya nabuyak lapud biglan panguman na temperatura;

Arum nin Kablian: Aliwan -magnetic, balibali so inka-cast, tan nayarin i-cast ed komplikadon- ya kurti na saray kabiangan.

4. Ag-onkupas

Diad pandepende ed atagey ya chromium content ya 18%-23%, say makapal a Cr2O3 oxide film et mainomay ya naporma ed tapew, ya mangiiter na maong ya resistensya edalkaline media tan mild oxidative corrosion environments, tan makaanos ed erosion lapud makapuy ya corrosive media diad saray industriyal ya kaliberliber. Balet, say resistensya to ed corrosion et onkupas ed mabiskeg ya corrosion ya kaliberliber a singa say mabiskeg ya asido tan atagey ya chloride salts.

II. Saray kaslakan ya senaryo na pangiyaplika ed SCH12

Bilang sakey a heat-resistant cast steel, say SCH12 et manunan matukoy parad panag-casting na kagawaan ed industriya diad silong nakatamtaman tan atagey-temperatura, thermal cycling conditions ya walay pigaran mekanikal ya karga, lalo la ed saray komplikadon kabiangan ya ginawa panamegley na panag-cast. Saray kaslakan ya aplikasyon to et onia:

1. Power Machinery Field

Sakey iya ed saray manunan materyales paradsaray payak na steam turbine, ya onadapta ed atagey-temperaturan seksion na pantratrabahoan na steam turbines, tan makaanos ed panag-scouring na atagey-temperaturan steam, thermal cycling tan mechanical centrifugal force. Say resistensya to ed kapagaan tan say bilay na serbisyo to et nayarin lalon napaaligwas panamegley na saray proseso na panag-cast ya mas maabig. Uusaren met iya parad saray medium tan high-temperature cast components na gas turbines tan generators.

2. Boiler tan Pressure Vessel Field

Nayarin gawaen itan yasaray atagey a temperaturaparad saray industrial boiler tan pressure electric boiler, singa saray internal furnace supports, heat-resistant liners, connecting castings, tan arum nira. Saya so inadapta ed temperaturan mankikimey ya onsulok ed 300 degree, pressure cycling tan alkaline ya kalidad na danum ya kaliberliber ed saray boiler (maong ya mipara ed saray kondisyon na pantratrabaho na pressure electric boiler insulatation), akasumpal ed heat heat tan saray kakaukolanen ed mekanikal a karga na kagawaan.

3. Lawak na Kagawaan ed Metalurhiya tan Panangipainit

Uusaren iya paradsaray hurnoan ya laman na hurnoan, saray suporta ya ag-onpepetang, saray basket/bandehado na materyalesna saray metallurgical furnaces tan heat treatment furnaces, ya makasungdo ed atagey a temperatura na thermal radiation tan thermal cycling ed hurnoan, tan makaresolbe ed erosion lapud ag-onkakasil ya atmospera ed hurnoan, pian naseguro so andukey a panaon ya malet ya operasyon na kagawaan.

4. General Industrial High-Temperature Equipment

Onaplika itan edmankakasakey tan atagey a temperatura na pump tan valve castings, hot air pipeline castings, heat-resistant components na drying equipmentdiad industriya na kemikal tan materyales ed panagpaalagey, lalo lan matukoy parad saray komplikadon parte na istruktura ya mankaukolan na casting forming tan kaukolan so atagey a temperatura tan inkapekder na petang.

III. Saray Manunan Bentaha tan Aplikasyon Saray Manunan Punto na Materyal

1. Saray Manunan Bentaha

Ekselentin Panresisti ed Petang: Say austenitic matrix ya inlaok ed atagey a chromium-nickel alloy et manresulta ed matantan ya ikapuy na biskeg ed atagey a temperatura tan maong ya thermal fatigue resistance, ya matukoy parad andukey a panaon ya atagey- a temperaturan cyclic working conditions;

Superyor ya Castability: Nayarin i-cast ed komplikadon - ya kurti na saray kabiangan ya anggapoy komplikadon ontumbok ya proseso, ya mamawas ed gastos ed produksyon tan panaggawa;

Maong ya Komprehensibon Mekanikal iran Kablian: Parehon atagey so biskeg tan inkaplastiko to, sarag ton sumpalen iray kakaukolanen ed mekanikal a karga legan ya onsusumpad atagey a temperatura, tan ag-itan mainomay a nabali;

Pigaran Resisti ed Korosyon: Ag-onkukurang ed alkaline tan mild oxidative ya kaliberliber, ya makaadapta ed saray pankaukolan na corrosion na maslak ya industriyal ya atagey a temperatura.

2. Saray Manunan Punto ed Aplikasyon

Sayan materyal etginawan asero, ya manunan uusaren parad saray cast components, aliwan parad saray rolled profiles a singa saray plato tan bar;

Say resistensya to ed mabiskeg ya corrosion (mabiskeg ya asido, atagey ya asin, mabiskeg ya oksidasyon) et kaslakan. Parad ontan iran kondisyon na pantratrabaho, nepeg ya usaren iray anti-coatings ya anti-corrosion odino nepeg ya salatan iray mas atagey ya -grade ya alloy materials;

Anggaman say resistensya to ed oksidasyon ed atagey a temperatura et ekselenti, diad ultra-atagey a temperatura na kaliberliber ya onsulok ed 900 degree, kaukolan ya regular ya nengnengen so kipapasen na tapew na oxide film pian ag naderal so matrix;

Kayari na panag-cast, saray mekanikal a kablian to tan say thermal stability to ed atagey a temperatura et nayarin lalon napaaligwas panamegley na saray proseso na heat treatment a singa say solution treatment tan aging treatment.