Igwe anaghị agba nchara: Hex Bolts na akara ngosi ihe

2026-08-05

1. Okwu mmalite

Igwe anaghị agba nchara na-ejikọta nguzogide corrosion pụtara na ike arụ ọrụ, na-eme ka ha dị mkpa n'ofe ihe owuwu, mmiri, nhazi nri, na ụlọ ọrụ ahụike. N'adịghị ka carbon steel fasteners chọrọ mkpuchi mkpuchi, igwe anaghị agba nchara na-enweta nguzogide corrosion ya site na oyi akwa chromium oxide na-agwọ onwe ya. Ntuziaka a na-ekpuchi akụkụ abụọ kachasị mkpa: nhazi hex bolt na nhọrọ ọkwa igwe anaghị agba nchara.

2. Hex Bolts

Hex bolts na-egosipụta isi akụkụ isii na-enye ohere ịnyefe torque dị mma site na wrenches ọkọlọtọ ma ọ bụ sọket. Nhazi ahụ nwere isi hexagonal, mkpịsị aka na-enweghị eriri, akụkụ eri, na ọnụ chamfered. Uru ndị dị mkpa gụnyere ikike torque dị elu, nnweta zuru ụwa ọnụ, nrụpụta nrụpụta, nrụpụta ọrụ, na nnabata na ụkpụrụ mba ụwa (ISO 4014, DIN 933, ASTM A325).

Tebụl 1. Ọkọlọtọ Hex Bolt nha (igwe anaghị agba nchara)

Nha aha	Eriri Pitch (TPI)	Obosara isi (mm)	Ike tensile (MPa)
1/4 - 20	20	11.1	520
3/8 - 16	16	14.3	520
1/2-13	13	19.1	520
3/4 - 10	10	28.6	520

3. Igwe anaghị agba nchara akara ule

Igwe anaghị agba nchara fasteners na-nkewa n'ime anọ ezinụlọ: austenitic (304, 316 - na-abụghị magnetik, elu corrosion eguzogide), ferritic (430 - magnetik, echekwa), martensitic (410 - hardenable, agafeghị oke corrosion), na ọdịda-hardening (17-4PH - elu ike). N'okpuru ISO 3506, akara ule na-eji koodu mkpụrụedemede ebe A = austenitic, C = martensitic, ọnụọgụ ahụ na-egosi klas ike tensile (50/70/80).

Tebụl 2. Akara igwe anaghị agba nchara maka Bolts

Ọkwa	Klas ISO	Tensile (MPa)	Nguzogide corrosion.	Isi ihe	Ngwa a na-ahụkarị
304	A2-70	700	Ọ dị mma	18% Cr, 8% Ni	Ebumnuche izugbe, nri
316	A4-70	700	Magburu onwe	16% Cr, 10% Ni, 2% Mo	Mmiri, kemịkalụ, ahụike
410	C3-80	550	Na-agafeghị oke	12% Cr	Akpụkpọ anụ, valves
17-4PH	A4-80	800	Ọ dị mma	16% Cr, 4% Ni, 4% Cu	Aerospace, ike dị elu

3.1 Nhọrọ ọkwa ọkwa site na gburugburu

Tebụl 3. Ngosipụta akwadoro site na gburugburu ọrụ

gburugburu	Akwadoro ọkwa	Ihe kpatara ya
Ime ụlọ / akọrọ	304 (A2)	Zuru oke na ọnụ ala dị ala
N'èzí / n'ụsọ oké osimiri	316 (A4)	Mo na-eguzogide ọgụ chloride
Osisi kemịkalụ	316L / 904L	Nguzogide acid dị elu
Mkpa ike dị elu	17-4PH (A4-80)	Mmiri-ezosie ike

Igwe anaghị agba nchara Hex Bolts na akara ngosi ihe

4. Ihe ndị dị mkpa

Ọkụkụ: Agụmakwụkwọ Austenitic (304, 316) na-enwekarị ike ijide eri mgbe a na-emechi ya. Jiri ogige mgbochi njide ma ọ bụ njikọ ọkwa ọkwa dị iche (A2 bolt with A4 nut) iji belata.

Mmasị: Ọgwụgwọ acid (ASTM A967) na-ewepụ ígwè n'efu ma na-eme ka oyi akwa oxide dịkwuo mma, na-eme ka nguzogide corrosion dịkwuo mma mgbe emechara ya.

Magnetism: Ọkachamara Austenitic abụghị ihe ndọta mgbe a na-ewepụ ya mana ọ nwere ike bụrụ ihe ndọta n'oyi ka arụchara ọrụ oyi. Ferritic na martensitic akara ule bụ ihe ndọta ebumpụta ụwa.

5. Nkwubi okwu

Igwe anaghị agba nchara hex bolts jikọtara imewe geometric bara uru yana ụdị ọla. Site na ọkwa akụ na ụba 304 maka iji n'ozuzu ya na 17-4PH ike dị elu maka ngwa ndị na-achọsi ike, ịkwado ọkwa ziri ezi na gburugburu ọrụ na-eme ka arụmọrụ dị mma na ogologo ndụ dịkwuo mma.

Enweghị. Na-esote.

Akụkọ kacha ọhụrụ