Nchara gburugburu
Nchara gburugburu na-ezo aka na eriri siri ike nke ígwè nwere akụkụ obe okirikiri.A na-egosipụta nkọwa ya na dayameta, na millimeters (mm), dịka "50mm" pụtara nchara gburugburu na dayameta nke 50 mm.
A na-ekewa nchara gburugburu ụzọ atọ: akpọrepu ọkụ, akpụpụtara na oyi na-atụ.Nkọwa nke igwe na-ekpo ọkụ na-ekpo ọkụ bụ 5.5-250 mm.N'ime ha: 5.5-25 mm obere nchara gburugburu na-enyekarị ya na ngwugwu nke mpempe akwụkwọ kwụ ọtọ, nke a na-ejikarị eme ihe dị ka ígwè ígwè, bolts na akụkụ dị iche iche nke ígwè ọrụ;gburugburu ígwè ibu karịa 25 mm bụ tumadi ji maka n'ichepụta n'ibu akụkụ na tube blanks nke enweghị nkebi ígwè ọkpọkọ chere.
Nkewa mmanya gburugburu
1.Nhazi site na ihe mejupụtara kemịkalụ
Enwere ike kewaa nchara carbon n'ime obere carbon steel, ọkara carbon steel na nnukwu carbon steel dị ka ihe mejupụtara kemịkal (ya bụ, ọdịnaya carbon).
(1) Nchara dị nro
A makwaara dị ka ígwè dị nro, ọdịnaya carbon sitere na 0.10% ruo 0.30%.Igwe carbon dị ala dị mfe ịnakwere nhazi dị iche iche dị ka ịgbado, ịgbado ọkụ na ịcha, a na-ejikarị eme ụdọ, rivets, bolts, shafts, wdg.
(2) Ọkara carbon ígwè
Carbon ígwè nwere ọdịnaya carbon nke 0.25% ruo 0.60%.A na-enwe ígwè e gburu egbu, ígwè e gburu ọkara, nchara na-esi ísì na ngwaahịa ndị ọzọ.Na mgbakwunye na carbon, ọ nwekwara ike ịnwe obere manganese (0.70% ruo 1.20%).Dị ka ngwaahịa àgwà, ọ na-ekewa n'ime nkịtị carbon structural ígwè na elu-edu carbon structural ígwè.Nhazi okpomọkụ dị mma na ịcha arụmọrụ, arụmọrụ ịgbado ọkụ na-adịghị mma.Ike na ike siri ike dị elu karịa obere carbon ígwè, ma plasticity na ike dị ala karịa obere carbon ígwè.Enwere ike iji ihe ndị na-ekpo ọkụ na-ekpo ọkụ na oyi na-atụ na-eme ihe ozugbo na-enweghị ọgwụgwọ okpomọkụ, ma ọ bụ mgbe ọgwụgwọ okpomọkụ gasịrị.Ọkara carbon ígwè mgbe quenching na tempering nwere ezi keukwu n'ibu Njirimara.Isi ike kachasị elu enwere ike nweta bụ ihe dịka HRC55 (HB538), na σb bụ 600-1100MPa.Ya mere, na ojiji dị iche iche nke ọkara ike larịị, ọkara carbon steel bụ nke a na-ejikarị.Na mgbakwunye na eji ya dị ka ihe owuwu ụlọ, a na-ejikwa ya na-emepụta akụkụ dị iche iche nke igwe.
(3) Igwe carbon dị elu
A na-akpọkarị ígwè ígwè ọrụ, ihe ndị dị na carbon sitere na 0.60% ruo 1.70%, ọ pụkwara isiri ya ike na iwe ọkụ.Hama, crowbars, wdg bụ nke ígwè nwere carbon ọdịnaya nke 0,75%;A na-eji ígwè arụ ọrụ ịkpụ, dị ka ọkpọ, mgbata, reamers, wdg. bụ nke ígwè nwere carbon ọdịnaya nke 0.90% ka 1.00%.
2.Nkewa site na ogo igwe
Dị ka mma nke ígwè, ọ nwere ike kewaa n'ime nkịtị carbon ígwè na elu-edu carbon ígwè.
(1) Carbon structural steel nkịtị, nke a makwaara dị ka carbon ígwè nkịtị, nwere oke mgbochi na ọdịnaya carbon, oke arụmọrụ, yana ọdịnaya nke phosphorus, sọlfọ na ihe ndị ọzọ fọdụrụnụ.Na China na mba ụfọdụ, a na-ekewa ya n'ụdị atọ dị ka ọnọdụ nkwenye nke nnyefe si dị: Klas A steel (Klas A steel) bụ ígwè nwere ihe eji arụ ọrụ na-ekwe nkwa.Klas B ígwè (Klas B ígwè) bụ ígwè nwere ihe mejupụtara kemịkalụ na-ekwe nkwa.Nchara pụrụ iche (ụdị ụdị C) bụ igwe na-ekwe nkwa ma ihe eji arụ ọrụ na ihe mejupụtara kemịkalụ, a na-ejikarị emepụta akụkụ nhazi dị mkpa karị.China ugbu a na-emepụta ma na-eji kasị A3 ígwè (Klas A No. 3 ígwè) na a carbon ọdịnaya nke banyere 0.20%, nke bụ tumadi eji maka engineering Ọdịdị.
Ụfọdụ nchara arụrụ arụ carbon na-agbakwunyekwa ọnụọgụ nke aluminom ma ọ bụ niobium (ma ọ bụ ihe ndị ọzọ na-emepụta carbide) iji mepụta nitrides ma ọ bụ carbide particles iji gbochie uto ọka.Maka ịmatakwu CNC, chọọ akaụntụ ọha "Nkụzi mmemme NC" na WeChat, Mee ka ígwè dị ike ma chekwaa ígwè.Na China na mba ụfọdụ, iji mezuo ihe pụrụ iche chọrọ nke ígwè ọkachamara, a na-edozi ihe ndị mejupụtara kemịkalụ na ihe onwunwe nke carbon structural ígwè nkịtị, si otú a na-emepụta usoro ígwè ọrụ ọkachamara nke ígwè carbon nkịtị (dị ka àkwà mmiri, ụlọ). Ogwe ígwè, ígwè maka arịa nrụgide, wdg).
(2) E jiri ya tụnyere ígwè arụrụ arụ carbon nkịtị, nchara arụrụ arụ dị elu nwere obere ọdịnaya nke sọlfọ, phosphorus na ihe ndị ọzọ na-abụghị ọla.Dabere na ọdịnaya carbon dị iche iche na ojiji, enwere ike kewaa ụdị ígwè a ụzọ atọ:
① Ihe na-erughị 0.25% C bụ obere carbon ígwè, karịsịa 08F na 08Al nwere carbon ọdịnaya nke ihe na-erughị 0.10%, na-eji ọtụtụ ebe dị ka miri-ese akụkụ ndị dị otú ahụ dị ka ụgbọala na Mkpọ n'ihi na ha dị mma miri drawability na weldability …… .20G bụ isi ihe maka ịme ọkụ ọkụ nkịtị.Tụkwasị na nke ahụ, a na-ejikwa ígwè carbon dị ala dị ka carburizing ígwè maka ịmepụta ígwè ọrụ.
②0.25 ~ 0.60% C bụ ọkara carbon ígwè, nke na-akasị eji na quenched na iwe ala ime akụkụ na igwe n'ichepụta ụlọ ọrụ.
③ Ihe karịrị 0.6% C bụ nnukwu carbon ígwè, nke a na-ejikarị na-emepụta isi iyi, gia, mpịakọta, wdg. Dị ka ọdịnaya manganese dị iche iche si dị, enwere ike kewaa ya n'ụdị ígwè abụọ nwere ọdịnaya manganese nkịtị (0.25-0.8). %) na ọdịnaya manganese dị elu (0.7-1.0% na 0.9-1.2%).Manganese nwere ike imeziwanye ike nke ígwè, mee ka ferrite dị ike, ma melite ike mkpụrụ, ike nkwụsị na iyi nguzogide ígwè.Ọtụtụ mgbe, a na-agbakwunye akara "Mn" mgbe ọkwa nke ígwè nwere nnukwu ọdịnaya manganese, dị ka 15Mn na 20Mn, iji mara ọdịiche dị na ya na carbon ígwè nwere manganese nkịtị.
3.Nhazi site na ebumnuche
Dị ka ngwa, ọ nwere ike kewaa n'ime carbon structural ígwè na carbon ngwá ọrụ ígwè.
Ngwá ọrụ Carbon ígwè Ọdịnaya carbon dị n'etiti 0.65 na 1.35%.Mgbe ọgwụgwọ okpomọkụ gasịrị, enwere ike nweta ike siri ike na akwa mkpuchi akwa.A na-ejikarị ya emepụta ngwá ọrụ dị iche iche, ngwá ọrụ ịkpụ, ihe ọkpụkpụ na ihe atụ (lee ngwá ọrụ ígwè).
Carbon structural steel na-ekewa n'ime akara ule 5 dịka ike nke ígwè si dị:
Q195, Q215, Q235, Q255, Q275
A na-ekewa akara ọ bụla na akara A, B, C, na D n'ihi àgwà dị iche iche.Enwere ụdị anọ kachasị, ma ụfọdụ nwere naanị otu;na mgbakwunye, enwere ọdịiche dị na usoro deoxidation nke nchara nchara.
Akara usoro deoxygenation:
F - igwe na-esi ísì
b——nchara gbuchara ọkara
Z——gburu ígwè
TZ—— nchara gburu pụrụ iche
Ihe nke gburugburu ígwè: Q195, Q235, 10#, 20#, 35#, 45#, Q215, Q235, Q345, 12Cr1Mov, 15CrMo, 304, 316, 20Cr, 40Cr, 20Cr, 40Cr, 205CrMo, 34CrMor 15,65 nde , 50Mn, 50Cr, 3Cr2W8V, 20CrMnTi, 5CrMnMo, wdg.
Oge nzipu: Jun-05-2023