Ọkwa:20 ígwè
Ọkọlọtọ:GB/T 699-1999

njirimara
Ike dị ntakịrị elu karịa ígwè 15, ọ na-adịkarịghị emenyụ, ọ dịghị iwe ọkụ nbibi oyi deformation plasticity elu n'ozuzu maka ekwe ka calender flanging na hama nhazi, dị ka arch arc ịgbado ọkụ na iguzogide ịgbado ọkụ ọrụ ịgbado ọkụ, ịgbado ọkụ mgbe ọkpụrụkpụ bụ obere, siri ike ọdịdị ma ọ bụ. udi nke mgbagwoju akụkụ adịkarịghị ịgbawa na ịcha machining steeti oyi adọta ma ọ bụ normalizing annealing ọnọdụ ezi n'ozuzu eji na mmepụta nke ike abụghị nnukwu na elu siri ike.
The ígwè bụ nke elu àgwà obere carbon carbon ígwè, oyi extrusion carburized hardening ígwè, ígwè nwere obere ike, ezi ike, plasticity na weldability, tensile ike nke 355-500mpa, elongation ọnụego nke 24%
Normalizing nwere ike kwalite spheroidization nke ígwè, nụchaa nnukwu ngọngọ proeutectoid ferrite, ma melite arụmọrụ ịkpụ nke oghere na-erughị 160HBS.
Ụzọ teknụzụ nkeígwèakụkụ anwụ bụ: nkedo forging anwụ oghere annealing ígwè ike ike machining oyi extrusion ịkpụzi recrystallization annealing ígwè ezi machining carburizing quenching tempering egweri polishing mgbakọ.

chemical mejupụtara
C: 0.17% ~ 0.24%
Si: 0.17% ~ 0.37%
Ọnụ: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
Kr: 0.25%
Nkeji: 0.25%
Ihe: 0.25
akụrụngwa akụrụngwa
Ike tensile B (MPa): ≥410(42)
Ike mpụta S (MPa): ≥245(25)
Mgbatị 5 (%) : ≥25
Mbelata mpaghara ibe n'ibe (%) : 55 ma ọ bụ karịa
Isi ike: anaghị agwọta okpomọkụ,≤156HB
Nha nlere: nha nlele: 25mm

ozi ndị ọzọ

Okpomọkụ ọgwụgwọ nkọwa: normalizing,910 ℃, ikuku jụrụ.

Ọdịdị Metallographic: ferrite + pearlite.
Ọgwụgwọ okpomọkụnke ígwè 20 na quenching ike nke ígwè ọ dịghị. 20:
Okpomọkụ ọgwụgwọ nke 20 ígwè: N'ihi na 20 ígwè, ọ ga-ekwe omume iji nweta nkịtị quenching hardness nke 30-35HRC. N'ihi na kpo oku okpomọkụ dị elu, quenching deformation bụ ibu.View:
1. Mgbe ike ike machining, na workpiece na-quenched dị ka a dum site okpomọkụ ọgwụgwọ (920 ℃ quenched brine), na mgbe ahụ processed.Due ka hardness chọrọ nke 30-35HRC, niile usoro kwesịrị inwe ike hazie, ọ dịghị ihe ọzọ karịa ezi n'ime. na n'èzí okirikiri ụgbọ ala, rụkwaa igodo ụzọ.
2. Otu ihe siri ike machining, n'ime oghere elu quenching ma ọ bụ naanị table quenching keyway (dabere na size nke workpiece), na n'ikpeazụ agwụ.
3. Carburizing na quenching, egweri n'ime oghere na keyway.
Usoro usoro bụ nke abụọ, nke atọ na ọtụtụ.
● Ọnọdụ nnyefe: nnyefe na ọnọdụ nke enweghị ọgwụgwọ okpomọkụ ma ọ bụ ọgwụgwọ okpomọkụ (annealing, normalizing or high okpomọkụ tempering) .Nnyefe na ọnọdụ nke ọgwụgwọ okpomọkụ ga-egosi na nkwekọrịta. Ọ bụrụ na egosighi ya, a ga-enyefe ya na-enweghịọgwụgwọ okpomọkụ.