Akwankyerɛ a ɛfa nneɛma a wɔpaw ma ɔhyew-Resistant Steel Castings: German Standard vs. China Standard, Nhwehwɛmu a ɛkɔ akyiri fi nea wɔahyehyɛ so kosi Adwumayɛ tebea so

Wɔ mfiridwuma mu tebea horow a ɛyɛ hyew a ɛkorɔn mu no, ɔsom nkwa nna, ahoɔden a egyina pintinn, ne ɛka-a ɛyɛ adwuma yiye wɔ ɔhyew-dade a wɔde gu mu a ɛko tia ho no gyina nneɛma a wɔpaw so titiriw. Sɛ wopaw nneɛma a ɛfata a, ebetumi ama woanya "bere biako-sika a wode bɛto mu, bere tenten-asomdwoe a ɛwɔ w'adwene mu," akwati sɛ wɔtaa sesa, mfiri a wɔde gyae adwuma, ne ɛka a wɔsɛe no esiane nneɛma a ɛnhyia nti. Sɛ wɔde nsaanodwuma a ɛyɛ fɛ di dwuma mpo a, nneɛma a ɛnteɛ no bɛpere sɛ ɛbɛsakra ne ho akɔ tebea horow a emu yɛ den a ɛyɛ hyew, ɛyɛ nsɛe, ne nea ɛho asɛe mu.

Sɛ́ fibea manufacturer a ɔwɔ mfe 20 osuahu wɔ ɔhyew-resistant dade casting adwumayɛ mu, Qingyun Hongsheng Machinery Accessories Co., Ltd. fi bere tenten aboa core nnwinnade wɔ metallurgy, anyinam ahoɔden, nnuru, adansi nneɛma ne nnwuma afoforo mu, na ne ho akokwaw wɔ su ne dwumadie tebea horow a ɛwɔ China ne German gyinapɛn ɔhyew-resistant dade nneɛma nyinaa mu. Saa asɛm yi bɛpaapae Chinafo ne Germanfo gyinapɛn nneɛma atitiriw no mu kɛse afi afã anan mu: nneɛma a wɔahyehyɛ, adwumayɛ ho nsusuwii, adwumayɛ tebea mu nsakrae, ne afiri a wɔpaw, aboa nnwuma mu adwumayɛfo ma wɔapaw nneɛma a edi mu na wɔakwati akwan a wɔbɛfa so akɔ baabi foforo. Bere koro no ara mu no, ɛde ano aduru a wɔayɛ ama adwumayɛfo de boa nnwumakuw ma wɔtew ɛka so na wɔma adwumayɛ kɔ soro.

I. Core Premise: Dɛn nti na Ɔhyew-Resistant Steel Casting Materials a Wɔpaw no Ho Hia?

Botae titiriw a ɛwɔ dade a wɔde gu mu a ɛko tia ɔhyew{0}}ho ne sɛ ɛbɛkɔ so akura oxidation a ɛko tia, ahoɔden a ɛkorɔn-ɔhyew, ɔhyew a ɛko tia, ne ɔhyew a ɛko tia wɔ mmeae a ɔhyew a ɛkorɔn-a ɛyɛ digrii 450 -1200 digrii Nsonsonoe a ɛwɔ saa su ahorow yi mu no fi nneɛma a wɔde afrafra (chromium, nickel, silicon, molybdenum, ne nea ɛkeka ho) dodow a ɛwɔ ade no mu titiriw. Nneɛma a ɛwɔ alloying nneɛma ahorow mu no kyerɛ tẽẽ anohyeto a ɛwɔ soro a ɛko tia ɔhyew a ɛkorɔn, ɛko tia nsɛe, ne nkwa nna a wɔde yɛ adwuma wɔ castings no mu.

Wɔ nneyɛe mu no, yɛahyia ɔhaw pii a nneɛma a wɔpaw a ɛnteɛ de ba: sɛ nhwɛso no, sɛ yɛde dade a ɛyɛ mmerɛw-a ɛko tia ɔhyew (te sɛ ZGCr28) a wɔde di dwuma wɔ fononoo a wɔde yɛ ɔhyew a ɛboro digrii 1100 mu a, ɛbɛma oxidation ayɛ peeling na apaapae wɔ asram 1-2 pɛ mu sɛ wɔde Chinafoɔ gyinapɛn 2010 nneɛma di dwuma wɔ flue gas tebea a sulfur wom mu a, ɛbɛma nsuo a ɛyɛ nsɛeɛ no ayɛ ntokuru wɔ asram 3 mu, a ɛnyɛ sɛ ɛma ɛka a wɔbɔ wɔ nsiesie ho no kɔ soro nko na mmom ɛkyɛ nhyehyɛeɛ a wɔde yɛ adwuma no nso.

Enti, ntease titiriw a ɛwɔ nneɛma a wɔpaw mu ne sɛ:a ɛne adwumayɛ tebea mu hyew, nneɛma a atwa yɛn ho ahyia a ɛwɔ mfinimfini, ne adesoa ahoɔden hyia.

II. Mainstream Chinese Standard Heat-Resistant Steel Materials (Wɔpɛ ma Ofie Nnwuma, Ɛka a ɛkɔ soro-Effectiveness Adaptation)

Chinafoɔ gyinapɛn ɔhyew-resistant dadeɛ a wɔde gu mu no yɛ sɛdeɛ GB/T 8492-2014 kyerɛ. Nneɛma a wɔde to din no fi ase wɔ "ZG" (cast steel), na ɛno akyi no, nea ɛwɔ alloying elements mu. Wɔfata ma ɔman no mu nnwuma dodow no ara, a ɛka -a ɛyɛ adwuma yiye, adetɔ a ɛyɛ mmerɛw, ne adetɔn akyi mmuae ntɛmntɛm. Nea edidi so yi yɛ Chinafo gyinapɛn nneɛma 3 a wɔtaa de di dwuma kɛse no mu nhwehwɛmu a emu dɔ:

(I) ZG40Cr25Ni20Si2 (a wɔtaa frɛ no 2520 ade) - Ɔhene a Ɔkorɔn-Ɔhyew Oxidation Resistance

Nneɛma a Wɔahyehyɛ no Titiriw: Carbon (C) Ennu anaasɛ ɛyɛ pɛ 0.45%, Chromium (Cr) 24%-26%, Nickel (Ni) 19%-22%, Silicon (Si) 1.5%-2.5%, Manganese (Mn) Ennu anaasɛ ɛyɛ pɛ 1.5%, Phosphorus (P) Ennu anaasɛ ɛyɛ pɛ 0.04%, Sulphur (S) Ennu anaasɛ ɛne 0.03% yɛ pɛ;

Ɔhyew a Ɛkorɔn-Ɔhyew Adwumayɛ: Ɔsom mu hyew a ɛsen biara yɛ digrii 1200 , ɔsom mu hyew a ɛkyɛ-bere tenten yɛ digrii 1050 . Wɔyɛ Cr2O3 oxide film a ɛyɛ den wɔ soro wɔ ɔhyew a ɛkɔ soro mu, na ɛmma oxygen nkɔ mu yiye na ɛwɔ oxidation a ɛko tia a emu yɛ den yiye;

Su Titiriw a Ɛwɔ Hɔ: Ɔhyew a ɛkorɔn-ɔhyew ahoɔden a ɛkorɔn, ɔhyew a ɛko tia yiye, etumi gyina ɔhyew ne awɔw a ɛtaa sesa ano (ɔhyew nsonsonoe a ennu anaasɛ ɛne no yɛ pɛ 800℃), na bere koro no ara mu no ɔwɔ acid ne alkali nsɛe a ɛko tia kodu baabi a ɛnyɛ nea ɛda adi sɛ ɛyɛ mmerɛw

Adeyɛ ho Ahwehwɛde ahorow: Ɛho hia sɛ wode medium-frequency induction electric furnace di dwuma de yɛ refining, hwɛ smelting temperature so wɔ 1500-1550℃, ɛyɛ nwini nkakrankakra bere a woahwie agu akyi, na afei woayɛ high-temperature quenching + tempering treatment wɔ 1050℃de ayi emu nhyɛso afi hɔ na wɔakwati mpaapaemu

Adwumayɛ Tebea Ahorow a Wotumi Sesa: Ɔhyew a wɔde sa fononoo mu nsukorade, fononoo ase mprɛte, nneɛma nketewa, nneɛma tray, semɛnte fononoo ano aduru, preheaters, mu ntama a ɛwɔ nnuru a ɛyɛ hyew a ɛkorɔn{0}}ɔhyew mu, nsukorade a ɛhyerɛn a ɛkorɔn-ɔhyew a ɛhyerɛn ne tebea afoforo a ɛkorɔn a ɛboro digrii 1000

Ɔsom Asetra: Wɔ adwumayɛ tebea a ɛyɛ hyew a ɛkorɔn-a wɔtaa yɛ mu no, ɔsom nkwa nna betumi adu asram 12-24, a ɛboro dade a ɛyɛ mmerɛw a ɛko tia ɔhyew a ɛyɛ mmerɛw no mmɔho 5.

(II) ZG30Cr20Ni10 (wɔtaa frɛ no 2010 nneɛma) - Ɛka a ɛkari pɛ-Ntu mpɔn Paw

Nneɛma a Wɔahyehyɛ no Titiriw: Carbon (C) Ɛnnu anaa ɛyɛ pɛ 0.35%, Chromium (Cr) 19%-22%, Nickel (Ni) 9%-11%, Silicon (Si) Ɛnnu anaasɛ ɛyɛ pɛ 1.5%, Manganese (Mn) Ɛnnu anaasɛ ɛyɛ pɛ 1.5%, Phosphorus (P) Ɛsua anaasɛ ɛyɛ pɛ 0.04%, Sulphur (S) Ɛnnu anaasɛ ɛne 0.03% yɛ pɛ;

Ɔhyew a Ɛkorɔn-Ɔhyew Adwumayɛ: Ɔsom hyew a ɛsen biara 1100℃, bere tenten-bere som hyew 950℃, oxidation a ɛko tia pa, ahoɔden a ɛyɛ den wɔ ɔhyew a ɛkorɔn mu, na ɛnyɛ mmerɛw sɛ wobɛma ayɛ mmerɛw na woasɛe;

Su Titiriw a Ɛwɔ Hɔ: Balancing wear resistance ne corrosion resistance, excellent processing performance, wobetumi atutu, welded ne afoforo secondary processing, bo no bɛyɛ 30% a ɛba fam sen 2520 ade, a ɛda nsow ɛka-effectiveness;

Adeyɛ ho Ahwehwɛde ahorow: Smelting temperature 1480-1520℃, ɔhyew ayaresa a ɛyɛ den biara ho nhia, amanne kwan so quenching + tempering dɔɔso, high production efficiency ne tiawa delivery cycle;

Adwumayɛ Tebea Ahorow a Wotumi Sesa: Metallurgical fononoo grates, boiler burner supports, nnuru a wɔde fa nsuo mu, high-hoppers ne conveyor chains wɔ adansi nneɛma adwumayɛ mu, flue gas pipe castings wɔ anyinam ahoɔden adwumayɛ mu ne nsɛm afoforo a ɛwɔ mfinimfini ne soro-ɔhyew a ɛyɛ 800-1000 degree

Ɔsom Asetra: Wɔ adwumayɛ tebea a wɔtaa yɛ mu no, ɔsom nkwa nna betumi adu asram 6-12, a ɛfata ma ofie nnwuma a ɛte nka wɔ ɛka ne ɔhyew a ɛwɔ mfinimfini ho.

(III) ZGCr28 (High-Chromium Material) - Sikasɛm ne Durable, Wɔpɛ ma Sulphur Corrosion Resistance

Nneɛma a Wɔahyehyɛ no Titiriw: Carbon (C) 0.30%-0.50%, Chromium (Cr) 26%-30%, Silicon (Si) Ennu anaasɛ ɛne no yɛ pɛ 1.5%, Manganese (Mn) Ennu anaasɛ ɛyɛ pɛ 1.5%, Phosphorus (P) Ennu anaa ɛyɛ pɛ 0.04%, Sulphur (S) Ɛnnu anaasɛ ɛyɛ pɛ 0.03%, Sulphur (S) Ɛnnu anaasɛ ɛyɛ pɛ 0.03%. (nickel anaa trace nikel biara nni hɔ);

Ɔhyew a Ɛkorɔn-Ɔhyew Adwumayɛ: Ɔsom hyew a ɛsen biara 1000℃, bere tenten-bere som hyew 850℃, medium oxidation resistance, hardness a ɛkorɔn wɔ ɔhyew a ɛkorɔn mu, ne soronko wear resistance;

Su Titiriw a Ɛwɔ Hɔ: Sulfur a ɛyɛ den yiye a ɛko tia nsɛe, tumi dannan ne ho kɔ adwumayɛ tebea a sulfur-a ɛwɔ flue gas ne sulfur-nneɛma a ɛwɔ mu, ne bo a ɛba fam, na ɛyɛ nea wɔpɛ ma low-ɛka kɛse-ɔhyew tebea horow

Adeyɛ ho Ahwehwɛde ahorow: Ɔkwan a wɔfa so yɛ no yɛ mmerɛw koraa, ɛho nhia sɛ wɔde nikel nneɛma a ne bo yɛ den ka ho, ɛho ka sua, na ɛfata sɛ wɔyɛ no pii;

Adwumayɛ Tebea Ahorow a Wotumi Sesa: Power plant boiler ash hoppers, high-temperature flue gas ducts, desulfurization equipment accessories, sulfur-a ɛwɔ nneɛma a ɛde fa afã horow wɔ metallurgical adwumayɛ mu, nwene-resistant linings ne tebea afoforo a ɛba fam sen 800℃a sulfur-a ɛwɔ mu anaasɛ ɛho asɛe kɛse

Ɔsom Asetra: Wɔ adwumayɛ tebea a wɔtaa yɛ mu no, ɔsom nkwa nna betumi adu asram 3-6, a ɛfata ma tebea horow a ɛwɔ ɛka a wɔhwɛ so denneennen ne mpɛn dodow a wogye tom sɛ wɔde besi ananmu.

III. Germanfo Standard Heat-Dade Nneɛma a Ɛko Tia (Wɔpɛ Ma Nnwuma a Wɔde Kɔ Amannɔne, Amanaman Ntam Amansan Gyinapɛn)

German standard heat-resistant steel castings yɛ nea wɔyɛ no sɛnea DIN 17445. Nneɛma no din fi ase wɔ "X", na ɛno akyi no, nea ɛwɔ alloying elements mu. Wɔwɔ amanaman ntam agyedeɛ a ɛkorɔn, nneɛma a wɔahyehyɛ no sohwɛ a ɛyɛ pɛpɛɛpɛ, na ɛfata ma nnwuma a wɔde kɔ Europa, Asia Kesee Fam Apueeɛ ne mmeaeɛ foforɔ, titire ma tebea a ɛkorɔn-awieɛ a ɛwɔ ahwehwɛdeɛ a emu yɛ den wɔ nneɛma a wɔde yɛ adwuma ne sɔhwɛ gyinapɛn ho. Nea edidi so yi yɛ nhwehwɛmu a emu dɔ a ɛfa Germanfo gyinapɛn nneɛma 2 a wɔtaa de di dwuma kɛse ne abusuabɔ a ɛne Chinafo gyinapɛn nneɛma a ɛne no hyia no ho:

(I) 1.4841 (X15CrNiSi25-21) - Ɛne Chinafoɔ Gyinapɛn 2520 hyia, Wɔpɛ ma Nneɛma a Wɔde Kɔ Amannɔne a Ɛkorɔn

Core Composition (Nneɛma a Wɔde Toto Chinafo Gyinapɛn 2520 Ho) .: Carbon (C) Ɛnnu anaasɛ ɛyɛ pɛ 0.15% (ɛba fam sene 0.45% wɔ Chinafoɔ gyinapɛn 2520 mu), Chromium (Cr) 24%-26% (ɛne Chinafoɔ gyinapɛn hyia), Nickel (Ni) 20%-22% (ɛne Chinafoɔ gyinapɛn hyia), Silicon (Si) 1.5%-2.5% (ɛne Chinafoɔ gyinapɛn hyia); nsonsonoe titiriw no ne carbon a ɛba fam, nneɛma a ɛho tew ne efĩ kakraa bi;

Ɔhyew a Ɛkorɔn-Ɔhyew Adwumayɛ: Ɔsom hyew a ɛsen biara 1150℃, bere tenten-bere som hyew 1050℃(titiriw no ɛne Chinafo gyinapɛn 2520 hyia), nanso ahoɔden a ɛko tia carburization, intergranular corrosion resistance, ne toughness a eye wɔ ɔhyew a ɛkorɔn mu

Mfaso Titiriw a Ɛwɔ So: Pɛpɛɛpɛ a ɛkorɔn wɔ composition control mu, ɛsɛ sɛ nneɛma akuw biara de spectral detection amanneɛbɔ ne non-destructive testing amanneɛbɔ ma, a ɛne EU mfiridwuma gyinapɛn ahorow hyia, ne gye a wogye tom kɛse wɔ amanaman ntam adetɔfo mu nneɛma a ɛho tew kɛse, ɛnyɛ mmerɛw sɛ ɛbɛbɔ na apaapae wɔ ɔhyew a ɛkorɔn mu, a ɛfata ma bere tenten-yɛ a ɛkɔ so yɛ;

Adeyɛ ho Ahwehwɛde ahorow: Fa vacuum smelting kwan no tom de hwɛ efĩ a ɛwɔ mu no so denneennen, na hwɛ ɔhyew a wɔde yɛ adwuma no hyew so pɛpɛɛpɛ wɔ 1050-1100℃na ama woahwɛ ahu sɛ adwumayɛ yɛ pɛ na ɛyɛ pintinn;

Adwumayɛ Tebea Ahorow a Wotumi Sesa: Nneɛma atitiriw a ɛwɔ ɔhyew a wɔde yɛ fononoo ne mfiridwuma mu fononoo a wɔde kɔ Europa mu, nneɛma a ɛwɔ ɔhyew a ɛkorɔn-a ɛwɔ nnuru a wɔde yɛ nneɛma a ɛkorɔn-awiei mu, ɔhyew a ɛkorɔn-ɔhyew tebea horow a ɛboro digrii 1000 a ɛhwehwɛ sɛ ɛko tia carburization ne nea ɛko tia nsɛe

Nsonsonoe a ɛda Chinafo Gyinapɛn 2520 ntam: Nneɛma a wɔahyehyɛ no di nsɛ kɛse, na wobetumi asesa wɔ adwumayɛ tebea dodow no ara mu; nanso, 1.4841 wɔ carbon a ɛba fam na ɛho tew kɛse, na ne bo yɛ 15%-20% sen Chinafo gyinapɛn 2520, a ɛfata ma nneɛma a wɔde kɔ amannɔne anaa ɔman no mu nnwuma a ɛkorɔn.

(II) 1.4837 (X12CrNi23-13) - Ɛne Chinafoɔ Gyinapɛn 2010 hyia, Wɔpɛ ma Mfinimfini Awieeɛ Nneɛma a Wɔde Kɔ Amannɔne

Core Composition (Ntoto Chinafoɔ Gyinapɛn 2010 ho) .: Carbon (C) Ɛnnu anaa ɛyɛ pɛ 0.12% (ɛba fam sene 0.35% wɔ Chinafoɔ gyinapɛn 2010 mu), Chromium (Cr) 22%-24% (ɛboro Chinafoɔ gyinapɛn 2010 so kakra), Nickel (Ni) 12%-14% (ɛboro Chinafoɔ gyinapɛn 2010 so kakra); nea wɔahyehyɛ no pɛpɛɛpɛ, oxidation a ɛko tia yiye ne ɔhyew a ɛko tia;

Ɔhyew a Ɛkorɔn-Ɔhyew Adwumayɛ: Ɔsom hyew a ɛkyɛn so 1050℃, bere tenten-bere som hyew 950℃(ɛne Chinafo gyinapɛn 2010 hyia), nanso eye sen biara a ɛkorɔn-ɔhyew a ɛyɛ den, etumi gyina ɔhyew ne awɔw a ɛtaa sesa, na ɛnyɛ mmerɛw sɛ ɛbɛpaapae;

Mfaso Titiriw a Ɛwɔ So: Nea ɛne amanaman ntam gyinapɛn ahorow hyia no, sɔhwɛ amanneɛbɔ a edi mũ (betumi ama EN gyinapɛn sɔhwɛ), a ɛfata ma nnwuma a wɔde kɔ amannɔne; nneɛma a ɛyɛ den yiye, adwumayɛ a ɛkyɛn so, betumi adi nneɛma a wɔyɛ no ahiade a ɛfa afã horow a ɛyɛ soronko-nsusuwso a ɛyɛ den ho dwuma;

Adeyɛ ho Ahwehwɛde ahorow: Medium-frequency refining + vacuum degassing de yi efĩ ne pores a ɛwɔ dade a wɔabɔ no mu, ɛyɛ den pɛpɛɛpɛ wɔ ɔhyew aduru akyi, ne soro awie;

Adwumayɛ Tebea Ahorow a Wotumi Sesa: Nnwinnade a wɔde dade kɔ amannɔne, nneɛma a wɔde yɛ boiler, nneɛma a wɔde fa nneɛma a ɛwɔ ɔhyew a ɛkorɔn-mu, nneɛma a ɛwɔ ɔhyew a ɛkorɔn-a ɛwɔ adansi nneɛma a ɛkorɔn-awiei ne ɔhyew tebea afoforo a ɛwɔ mfinimfini ne nea ɛkorɔn-a ɛyɛ digrii 800-1000

Nsonsonoe a ɛda Chinafo Gyinapɛn 2010 ntam: Chromium ne nickel dodoɔ a ɛkɔ soro kakra, toughness ne oxidation resistance a ɛyɛ papa, na ne boɔ yɛ 10%-15% a ɛkorɔn sene China gyinapɛn 2010, ɛfata ma amannɔne anaa ɔman no mu nnwuma a ɛkorɔn a ɛwɔ adwumayɛ ho ahwehwɛdeɛ a ɛkorɔn.

IV. Core Comparison Table of Chinese Standard vs. German Standard Materials (Ɛda adi pefee wɔ Ahwɛyiye mu, Paw Ntɛmntɛm)

V. 3 Nnyinasosɛm Titiriw a Ɛfa Nneɛma a Wɔpaw Ho (Ade Titiriw a Wɔde Kwati Afiri) .

Nnuruyɛfo pii taa hwe afiri a ɛne "dodow a ne bo yɛ den no, dodow no ara na eye" anaa "Chinafo gyinapɛn nyɛ papa te sɛ Germanfo gyinapɛn" mu bere a wɔrepaw nneɛma no. Nokwarem no, ade titiriw a ɛwɔ paw mu ne "adaptation". Nnyinasosɛm 3 a edidi so yi a wobɛka abom no betumi akwati afiri pɛpɛɛpɛ:

Nnyinasosɛm 1: Fa Adwumayɛ Tebea mu Ɔhyew sɛ Ade Titiriw (Nea Ɛho Hia Sen Biara) .

Ɔhyew na ɛkyerɛ nneɛma a wɔbɛpaw no tẽẽ. Sɛ ɛboro bere tenten-som hyew a ɛwɔ ade no mu pɛ a, casting no bɛyɛ oxidize ntɛmntɛm, ayɛ mmerɛw na apaapae:

Below 800℃: Wɔde ZGCr28 a ɛho ka sua, sulfur-gyinaa ne wear-a ɛko tia, a ɛdi mfitiaseɛ ahiadeɛ a ɛkorɔn a ɛkorɔn-ohyeɛ ho dwuma;

800-1000℃: Paw ZG30Cr20Ni10 (Chinafo gyinapɛn) anaa 1.4837 (German gyinapɛn) na ama adwumayɛ ne ɛka a wɔbɔ no akari pɛ;

Above 1000℃: Paw ZG40Cr25Ni20Si2 (China gyinapɛn) anaa 1.4841 (German gyinapɛn) na ama woahwɛ ahu sɛ ɔhyew a ɛkorɔn-a ɛko tia oxidation ne deformation.

Nnyinasosɛm 2: Fa Medium Environment Bom na Susuw Corrosion Resistance ho

Sulfur-a ɛwɔ flue gas ne sulfur-nneɛma a ɛwɔ mu: Wɔde nneɛma a ɛwɔ chromium a ɛdɔɔso (ZGCr28) di kan na wɔakwati sɛ ɛrensɛe nsuo;

Acid-base corrosion environment: Paw nneɛma a ɛkorɔn-nickel (2520/1.4841) na ama ayɛ oxide film a ɛyɛ den na woako atia corrosion;

Carburizing tebea (te sɛ ɔhyew ayaresa fononoo): Paw German gyinapɛn 1.4841 anaa Chinafo gyinapɛn 2520, a ɛwɔ ahoɔden a ɛko tia carburization na kwati nneɛma a ɛyɛ mmerɛw.

Nnyinasosɛm 3: Fa Dwumadie no Ahwehwɛdeɛ ne Kari pɛ Ka ne Adwumayɛ bom

Ofie nnwuma, ɛka-a ɛyɛ mmerɛw, ahwehwɛde soronko biara nni hɔ: Paw Chinafo gyinapɛn nneɛma (2520/2010/ZGCr28), a ɛwɔ ɛka kɛse-a ɛyɛ adwuma yiye na ɛyɛ mmerɛw-adetɔn akyi som;

Nnwuma a wɔde kɔ amannɔne, EU gyinapɛn ahwehwɛde, tebea horow a ɛkorɔn-awiei: Paw Germanfo gyinapɛn nneɛma (1.4841/1.4837), a ɛwɔ sɔhwɛ a edi mũ ne amanaman ntam agyede;

Adesoa a emu yɛ duru, ɔhyew ne awɔw a ɛtaa sesa: Paw 2520/1.4841 nneɛma, a ɛwɔ ahoɔden a ɛko tia ɔhyew a ɛko tia ne nea ɛko tia deformation, na ɛtrɛw ɔsom nkwa nna mu.

VI. Nnwumayɛbea Nsɛmmisa ne Mmuae a Wɔtaa De Ma (Ɛyaw Nsɛntitiriw a Wodi Ho Dwuma, Ano Aduru a Ɛyɛ Pɛpɛɛpɛ) .

Q1: Dɛn nti na 2520 nneɛma (ZG40Cr25Ni20Si2) bo kɔ soro kɛse sen nea ɛyɛ dade a ɛyɛ mmerɛw-a ɛko tia ɔhyew?

A1: Nneɛma atitiriw abien nti:

1 Alloy ka a ɛkorɔn: 2520 ade no kura bɛyɛ 25% chromium ne 20% nickel. Nickel yɛ dadeɛ a ɛsom boɔ a ne boɔ sakra kɛseɛ, na ɛyɛ bɛboro 60% wɔ nneɛma a wɔde yɛ adwuma no ho ka mu;

2 Adeyɛ a ɛkorɔn a wɔhwehwɛ: Ɛsɛ sɛ ɛfa akwan a ɛyɛ den te sɛ medium-frequency refining, slow cooling, ne high{1}}temperature heat treatment na ama efĩ afi hɔ, ayi emu nhyɛso afi hɔ, na akwati mpaapaemu, na ɛde nneɛma a wɔyɛ no kyinhyia tenten ne adehwere kɛse ba. Nanso, bere tenten mu no, nneɛma 2520 a wɔde yɛ adwuma no boro dade a ɛko tia ɔhyew-a ɛyɛ daa no mmɔho 5, a ebetumi atew mpɛn dodow a wɔde sesa, ɛka a wɔbɔ wɔ nsiesie ne bere a wɔde gyae adwuma no so, na ɛho ka-yɛ nea etu mpɔn kɛse wɔ bere tenten-de a wɔde di dwuma mu.

Q2: So wobetumi asesa Germanfo gyinapɛn 1.4841 ne Chinafo gyinapɛn 2520 koraa?

A2: Wobetumi asesa wɔn ho wɔn ho wɔ adwumayɛ tebea dodow no ara mu efisɛ wɔn chromium ne nickel a ɛwɔ mu no yɛ pɛ titiriw, na ɔhyew a ɛkorɔn-ɔyɛ adwuma no nyɛ soronko koraa. Nanso, tebea abien wɔ hɔ a wɔnkamfo nkyerɛ sɛ wɔnsesa wɔn ho wɔn ho:

1 Wɔ nnwuma a wɔde kɔ Europa ho no, wɔde 1.4841 di kan, a ɛne EU DIN gyinapɛn ahorow hyia, ɛwɔ adetɔfo a wogye tom kɛse, na ɛhwehwɛ sɛ wɔde sɔhwɛ amanneɛbɔ a ɛne no hyia;

2 Wɔ tebea horow a carburization a emu yɛ den ne intergranular corrosion wom ho no, 1.4841 wɔ carbon a ɛba fam na ɛho tew kɛse, na ɛko tia carburization a emu yɛ den, na ɛma ɛfata kɛse ma adwumayɛ tebea horow a ɛte saa. Yebetumi ayɛ nneɛma abien no nyinaa na yɛde nyansahyɛ ahorow a ɛyɛ pɛpɛɛpɛ a ɛfa nsakrae ho ama sɛnea adetɔfo adwuma no ahwehwɛde ahorow te.

Q3: Nneɛma a wɔde yɛ adwuma akyi no, nneɛma afoforo bɛn na ɛsɛ sɛ wosusuw ho bere a wɔrepaw no?

A3: Nneɛma ne ade titiriw, nanso wontumi mmu ani ngu nsɛm 3 a edidi so yi so:

1 Casting nhyehyɛe: Precision casting betumi ahwɛ ahu sɛ dimensional pɛpɛɛpɛ (±0.5mm), kwati secondary processing, na ɛtew installation ɔhaw ahorow so;

2 Ɔhyew ayaresa nhyehyɛe: Standard quenching + tempering betumi ayi emu nhyɛso afi hɔ na ama thermal shock resistance of castings atu mpɔn;

3 Nneɛma a wɔyɛ no ahoɔden: Wɔn a wɔyɛ nneɛma fibea betumi de nneɛma a wɔsɔ hwɛ ho amanneɛbɔ ne nhyehyɛe sohwɛ ama, a wɔde -adetɔn akyi som a wɔahyɛ ho bɔ, akwati sɛ wɔbɛtɔ "nneɛma a ɛnyɛ nokware" (te sɛ nickel ne chromium dodow a wɔbɛtew so de akɔma nneɛma a ɛba fam sɛ nea ɛkorɔn-).

Q4: Dɛn nti na nneɛma a ɛwɔ chromium a ɛkorɔn-(ZGCr28) betumi ako atia ɔhyew a ɛkɔ soro a nickel nka ho?

A4: Nneɛma a ɛwɔ chromium a ɛkorɔn-ɔhyew a ɛko tia no gyina chromium nneɛma so titiriw. Sɛ chromium dodow no du 26%-30% a, Cr2O3 oxide film a ɛyɛ den ba wɔ soro wɔ ɔhyew a ɛkɔ soro mu, na esiw oxygen a ɛkɔ mu no ano, na ɛnam so ma wonya oxidation a ɛko tia ne ɔhyew a ɛkorɔn-a ɛko tia. Nanso, esiane sɛ nickel nni hɔ nti, ne hyew a ɛkorɔn-ɔhyew ahoɔden ne ɔhyew a ɛko tia no nyɛ papa te sɛ 2520/1.4841 nneɛma, na ebetumi ayɛ nsakrae wɔ tebea horow a ɛba fam sen digrii 800 a ne som nkwa nna tiaa koraa nkutoo mu, a ɛfata ma tebea horow a ɛho ka sua ne ɔhyew a ɛba fam a wɔhwehwɛ.

VII. Marketing Copy (Fibea Manufacturer, Adwumayɛfo Customization, Ka a Wɔtew So ne Adwumayɛ mu Nkɔso)

Ɔbenfo wɔ Ɔhyew mu-Nneɛma a Wɔde Tow Dade a Ɛko Tia|Nneɛma a Wɔayɛ no Nyinaa a Wɔayɛ ama China ne German Gyinapɛn, Dadwen-Free Selection. Nneɛma a Wɔde Ka Ho Nyinaa: 2520/2010/ZGCr28/1.4841/1.4837, Nneɛma a Wɔpaw bere a Wɔhwehwɛ. Precision Craftsmanship: Medium-Frequency Refining + High-Temperature Heat Treatment + Full-Process Quality Inspection, Mframa ntokuru biara nni hɔ, Anhwea ntokuru biara nni hɔ, Adwumayɛ a ɛyɛ den. Nnwuma a wontua hwee: Nneɛma a Wɔpaw Akwankyerɛ, Mfoniniyɛ a Ɛyɛ Paara, Adwumayɛ Tebea Adaptation Analysis, Ɛboa Wo ma Kwati Afiri na Tew Ka so. Source Manufacturer: No Middlemen, Wɔatew ne bo so tẽẽ 20%-30%, Wɔtew nneɛma so pii ma nneɛma a wɔtɔ pii. Fast Delivery: Daa Afã horow a ɛwɔ Stock, Non{22}}Standard Afã horow a Wɔde De Kɔma wɔ Nnafua 7-15 mu, Wobetumi Ahyɛ Nneɛma a Ɛho Hia Ntɛmntɛm. Quality Assurance: Batch biara de Spectral Detection ne Non-Destructive Testing Reports, Asram 12 Quality Guarantee, Dadwen-Free After-Sales Service Ma.

Yɛde mfeɛ aduonu osuahu wɔ dadeɛ a wɔde gu mu a ɛtumi gyina ɔhyew ano-som mu, yɛsom mfiridwuma nnwuma bɛboro 500 wɔ wiase nyinaa, yɛyɛ nsakraeɛ wɔ adwumayɛ tebea a ɛkorɔn-ɔhyeɛ mu wɔ dadeɛ, anyinam ahoɔden, nnuru, adansiɛ nneɛma ne nnwuma foforɔ mu. Sɛ́ ebia wopaw Chinafo gyinapɛn ma ɔman no mu nnwuma anaa German gyinapɛn ma nnwuma a wɔde kɔ amannɔne no, yebetumi de ano aduru a wɔahyɛ da ayɛ, mfiridwuma mu nsɛm a wɔaka a wontua hwee ne mfoniniyɛ a ɛyɛ papa ama. Klik na hwehwɛ na nya dadeɛ a wɔde gu mu a ɛkorɔn-ɛyɛ papa na ɛho ka{9}}ɔhyeɛ-a ɛko tia!