20Cr zafi birgima karfe takardar

GB 20Cr gami  Karfe babban ingancin Ƙarfe ne kuma Mai zafin jiki, nasa ne na ƙarancin ƙarancin carbon, Low alloy chromium, molybdenum, ƙarar nickel hardening karfe. Mai Kashewa & Taurin Fushi shine 28-34 HRc. GB 20Cr Karfe Annealing bayarwa taurin kasa da 250HB.20Cr Tare da ƙananan kewayon abun ciki na carbon, Don haka GB 20Cr gami karfe suna da kyakkyawan walƙiya.

GB 20Cr gami karfe daidai bayani dalla-dalla: ASTM A29 / A29M, DIN EN 10083 / 3, JIS G4053 da GB / T 3077. GB 20Cr daidai karfe zagaye mashaya da lebur sanduna za a iya yanke to your bukata masu girma dabam. China karfe 20Cr zafi birgima da ƙirƙira karfe mashaya kuma za a iya kawota, samar da wani high quality kayan aiki karfe daidaici ƙasa kayan aiki karfe mashaya to your bukata tolerances. GB 20Cr karfe daidai sanduna na kayan ana kawota a zagaye, murabba'i da sifofin lebur.
GB 20Cr alloy Karfe babban inganci ne wanda aka kashe kuma mai zafin jiki. Nasa ne ga high quality low carbon, Low alloy chromium, molybdenum, nickel case hardening karfe. Ƙarƙashin Mai da Ƙarfe GB 20Cr Karfe shine 28-34 HRc. GB 20Cr Karfe Annealing isar da taurin kasa da 250HB. Tare da ƙananan kewayon abun ciki na carbon, GB 20Cr gami da ƙarfe daidai da walƙiya mai kyau.
GB 20Cr ƙirƙira sandar ƙarfe da sandar birgima mai zafi ana amfani da shi sosai don aikace-aikace iri-iri a cikin masana'antar kera motoci da injiniyoyi don masu riƙe kayan aiki da sauran abubuwan haɗin gwiwa. Mafi yawa ana amfani da shi wajen kera buƙatun ya fi girma, tsananin lalacewa ta fuskar zuciya, ƙarƙashin sashe ƙarƙashin 30 mm ko ƙananan sassan carburized na hadaddun sifa da kaya (mai kashe mai), kamar: kayan watsawa, shaft gear, CAM, tsutsa, piston fil, clutch clutch, da dai sauransu

Idan aka kwatanta da karfe 15Cr, yana da ƙarfi da ƙarfi. Matsakaicin matsananciyar taurin mai a cikin mai ya kai 4-22mm, kuma diamita mai mahimmanci a cikin ruwa ya kai 11-40mm, amma taurinsa ba shi da kyau. Akwai dabi'ar hatsi don girma, kuma quenching kai tsaye a sanyaya yana da tasiri mafi girma akan tasirin tasiri. Sabili da haka, bayan carburizing, ana buƙatar quenching na biyu don inganta ƙarfin ɓangaren ɓangaren ba tare da haushi ba; karfe yana da babban nau'in sanyi na filastik kuma ana iya zana shi cikin yanayin sanyi. ; Machinability yana da kyau a ƙarƙashin babban zafin jiki normalizing ko quenching da tempering jihar, amma matalauta bayan annealing; 20Cr ne pearlite, tare da kyau weldability, kullum baya bukatar zafi magani bayan waldi, amma sassa da kauri fiye da 15mm bukatar preheated kafin waldi Lokacin da ya kai 100 ℃ 150 ℃, tempering zafi magani ba a bukata bayan waldi.

20Cr zafi birgima karfe takardar Chemical Composition

Haɗin Sinadari (%)
Karfe daraja	C	Si	Mn	P	S	Cr	Ni	Ku
20Cr	0.18～0.24	0.17～0.37	0.50～0.80	≤0.035	≤0.035	0.70～1.00	≤0.030	≤0.30

Kayan aikin injiniya

Ƙarfin Haɓaka σs /MPa (>=)	Ƙarfin ƙarfi σb /MPa (>=)	Tsawaitawa δ5 /% (>>)	Ragewar yanki ψ/% (>=)	Tasiri tsoma makamashi Aku2/J (>=)	Hardness HBS 100 /3000 max
≧540	≧835	≧10	≧40	≧47	≦179

Daidai Da 20Cr Alloy Tsarin Karfe

Amurka	Jamus	China	Japan	Faransa	Ingila	Italiya	Poland	ISO	Austria	Sweden	Spain
ASTM/AISI/UNS/SAE	DIN, WNr	GB	JIS	AFNOR	BS	UNI	PN	ISO	ONORM	SS	UNE
5120 / G51200	20Cr4 / 1.7027	20Cr	Saukewa: SC420	18c3	527A20			20Cr4

Maganin zafi mai alaƙa

• Rufe  20Cr Alloy Tsarin karfe

A hankali mai zafi zuwa 850 ℃ kuma ba da izinin isa lokaci, bari karfe ya zama mai zafi sosai, Sa'an nan kuma kwantar da hankali a cikin tanderun. Karfe na 20Cr zai sami MAX 250 HB (Taurin Brinell).

• Hardening na GB Alloy Tsarin karfe 20Cr

Da farko quenching mai zafi a hankali zuwa 880 ° C, sannan bayan isasshen ruwa a wannan yanayin zafi a cikin mai ko ruwa. Haushi da zaran kayan aikin sun kai zafin dakin. Na biyu quenching zafi zuwa 780-820 ° C, sa'an nan quenching a cikin mai ko ruwa.

• Tempering na 20Cr Alloy Tsarin karfe

Yi zafi zuwa 20 ° C, sannan sanyi a cikin ruwa ko mai. al'ada taurin kai 179HB Min.

Aikace-aikace

GB 20Cr karfe ana amfani dashi sosai don aikace-aikace iri-iri a cikin masana'antar kera motoci da injiniyoyi don masu riƙe kayan aiki da sauran abubuwan da aka gyara. Mafi yawa ana amfani da shi wajen kera buƙatun ya fi girma, tsananin lalacewa ta fuskar zuciya, ƙarƙashin sashe ƙarƙashin 30 mm ko ƙananan sassan carburized na hadaddun sifa da kaya (mai kashe mai), kamar: kayan watsawa, shaft gear, CAM, tsutsa, piston fil, clutch clutch, da dai sauransu; Domin zafi magani nakasawa da kuma high abrasion juriya sassa, ya zama high mita surface quenching bayan carburizing, kamar modules ne kasa da 3 na kaya, shaft, spline shaft, da dai sauransu Wannan karfe za a iya amfani da a cikin quenched da tempered jihar da kuma Ana amfani da shi wajen kera manyan da matsakaita a ƙarƙashin tasirin tasiri a cikin sassan aikinta, irin wannan ƙarfe kuma ana iya amfani da shi azaman ƙarancin ƙarancin ƙarfe na martensite karfe quenching, yana ƙara haɓaka ƙarfin amfanin ƙarfe da ƙarfin ƙarfi ya karu (kusan 1.5 ~ 1.7 sau). Aikace-aikace na yau da kullun kamar jikin bawul, famfo da kayan aiki, Shaft, babban nauyin dabaran, kusoshi, kusoshi mai kai biyu, gears, da sauransu.

Girman yau da kullun da Haƙuri

Karfe zagaye mashaya: Diamita Ø 5mm - 3000mm

Farantin karfe: kauri 5mm - 3000mm x Nisa 100mm - 3500mm

Karfe Hexagonal Bar: Hex 5mm - 105mm

Wasu 20Cr ba su ƙayyadadden girman ba, pls  tuntuɓi kwararrun ƙungiyar tallace-tallacen mu.

Gudanarwa

GB 20Cr gami karfe zagaye mashaya da lebur sassan za a iya yanke zuwa girman da kuke bukata. 20Cr gami karfe ƙasa mashaya kuma za a iya kawota, samar da wani high quality kayan aiki karfe daidaici ƙasa kayan aiki karfe mashaya to your bukata tolerances. GB 20Cr karfe kuma ana samunsa azaman Ground Flat Stock / Gauge Plate, a cikin daidaitattun masu girma dabam da marasa inganci.