Dacromet Flange Bolts-Nleba anya nka 

1. Okwu mmalite

Dacromet flange bolts bụ ihe nkedo dị elu nke na-ejikọta isi isi flanged na mkpuchi zinc-aluminom flake dị elu nke a maara dị ka Dacromet (nke a na-akpọkwa mkpuchi zinc-chromium). Flange agbakwunyere n'okpuru isi na-ekesa ibu mpịachi karịa nke ọma, na-abawanye elu nke ebu, na-eme ka nkwụsi ike na-akpalite ịma jijiji, na-ewepụkwa mkpa ọ dị iche iche.

Emepụtara na 1970 dị ka ihe dị elu na-arụ ọrụ dị iche iche na mkpuchi electroplating na cadmium, teknụzụ Dacromet aghọwo ọgwụgwọ elu dị mma maka ọkwa 8.8, 10.9 na 12.9 bolts. A na-eji ihe nkedo ndị a eme ihe na chassis ụgbọ ala na mgbakọ powertrain, ihe owuwu ikuku, igwe ọrụ ugbo na ihe owuwu, akụrụngwa nhazi kemịkalụ, nrụnye mmiri na akụrụngwa nchara n'èzí ebe nguzogide corrosion dị ogologo oge dị oke egwu.

Onyonyo A. Nleta anya nke Dacromet mkpuchi hex flange bolts (ọlaọcha ọla-acha ntụ ntụ).

2. Gịnị bụ mkpuchi Dacromet?

Dacromet bụ ihe na-abụghị electrolytic, mmiri dabeere inorganic mkpuchi mejupụtara nke zinc flakes, aluminum flakes na chromium ogige (ma ọ bụ nke oge a chromium-free binders) gbasasịrị na a pụrụ iche matrix. A na-etinye ihe mkpuchi ahụ site n'ụdị dip-spin, spray or dip-drain ụzọ wee gwọọ ya na okpomọkụ na ihe dịka 300-320 Celsius. N'oge a na-agwọ nnukwu ihe, a na-emepụta usoro lamellar multi-layered nke n'otu oge na-enye nchebe mgbochi na ịchụ àjà (cathodic) nchebe nke ngwongwo ígwè.

Ọkpụrụkpụ ihe nkiri kpọrọ nkụ sitere na 5 ruo 12 μm. N'agbanyeghị ịdị gịrịgịrị ya, mkpuchi ahụ na-enyekarị ≥1,000 awa (ọkachasị awa 1,200-2,000 maka sistemụ kachasị mma) nke nchekwa na nnwale nnu na-anọpụ iche (ASTM B117 / ISO 9227) tupu nchara na-acha ọbara ọbara pụta - ihe dị ka 7 ruo 10 ugboro arụ ọrụ nke ọkọlọtọ electro-galvanizing.

3. Isi Uru

• Nguzogide nrụrụ pụrụiche: ≥1,000-1,500 h nnu ịgba ụdị; Ụdị dị elu na-arụ ọrụ karịrị 2,000 h.
• Ihe ize ndụ embrittlement hydrogen efu: Usoro a na-eji enweghị acid pickling ma ọ bụ electrolysis, na-eme ka ọ dị mma maka elu-ike bolts (Grade 10.9+).
• Ike dị elu: A na-edobe arụmọrụ nchekwa ruo ihe dịka 300 Celsius.
• Njikwa akụkụ mara mma: Ihe nkiri otu dị obere na-echekwa jiometry eri; ọ dịghị mkpa maka nnukwu mkpụrụ.
• Uru imepụta Flange: Ọbụna nkesa ibu, belata nrụgide elu yana mma nguzogide vibration.
• Profaịlụ gburugburu mara mma: Kemistri dabere na mmiri nwere ngwa mechiri emechi yana mbelata iyi iyi mkpofu.

4. Ntụle arụmọrụ na mkpuchi omenala

5. Nrụpụta & Usoro mkpuchi

Usoro usoro a na-ahụkarị gụnyere: ihicha alkaline na nkwụsị; nbibi nke igwe ma ọ bụ mgbawa abrasive (a na-ama ụma na-ezere pickling acid); ngwa nke zinc-flake slurry site na ntinye-spin ma ọ bụ ịgba; ọgwụgwọ okpomọkụ na 300-320 Celsius C; ngwa nhọrọ nke uwe elu mmanu ma ọ bụ ihe nchebe; na ikpeazụ jụrụ gbakwunyere nnyocha. A na-ejikarị ngwa basecoat abụọ na-aga n'ihu iji ruo oke ọkpụrụkpụ na ọkwa arụmọrụ achọrọ. Njikwa dị mkpa gụnyere ịdị ọcha nke elu, viscosity slurry, paramita atụgharị, ịdị n'otu ọkụ ọkụ na nkwenye mkpuchi ikpeazụ.

6. Ngwa a na-ahụkarị

• Ụgbọala & Ụgbọ njem: Chassis, nkwusioru, injin na ihe ngbochi sistemu breeki ekpughere na nnu okporo ụzọ, iru mmiri na ịnya igwe ọkụ.
• Ike ikuku: Ụlọ elu na ntọala bolts maka ụgbọ mmiri dị n'ikpere mmiri na nke dị n'ụsọ mmiri nke ga-adịrịrị ọtụtụ afọ na ikuku saline na-eji obere nlekọta.
• Igwe oru ugbo na ihe owuwu: Akụrụngwa na-arụ ọrụ na gburugburu nwere mmiri mmiri, fatịlaịza, abrasion ala na ihu igwe n'èzí.
• Ụlọ ọrụ Chemical & Usoro: Njikọ flange na ihe nrụzi n'ime osisi na-ejikwa mmiri mmiri ma ọ bụ ikuku na-emebi emebi.
• Akụrụngwa & mmiri: Àkwà mmiri, ụlọ elu nnyefe, ihe owuwu dị n'akụkụ osimiri, akụrụngwa ọdụ ụgbọ mmiri na ikpo okwu dị n'ụsọ osimiri.

Ọgụgụ 4. Ike arụmọrụ dị iche iche nke njirimara Dacromet bụ isi.

7. Ụkpụrụ, akara ule & Ntuziaka nhọrọ

Akụkụ akụkụ ụkpụrụ ndị a na-ezokarị aka gụnyere DIN 6921 na ISO 4162 (hexagon flange bolts) yana ụkpụrụ mba ha nhata dị ka GB/T 5787. Klaasị akụrụngwa a na-enyekarị na mkpuchi Dacromet bụ 8.8, 10.9 na 12.9 dịka ISO 898-1. A na-akọwakarị ọrụ mkpuchi mkpuchi ma ọ bụ site na nha mkpuchi (ọkwa A ≈ 24 g/m², Ọkwa B ≈ 36 g/m²) ma ọ bụ site na ọnụ ọgụgụ kacha nta nke awa ịgbasa nnu. Ọtụtụ OEM ụgbọ ala na nkọwapụta nhazi na-ahọrọ n'ụzọ doro anya sistemu zinc-flake maka bolts dị elu nke ọma n'ihi na ha na-ewepụ ihe egwu na-akpata hydrogen.

Ndụmọdụ nhọrọ bara uru:

1. Họrọ klaasị arụmọrụ mkpuchi dịka ụdị mmebi gburugburu ebe obibi a na-atụ anya ya (ISO 9223 C3-C5 ma ọ bụ karịa).
2. Maka ọkwa 10.9 na n'elu, kọwaa Dacromet ma ọ bụ ihe mkpuchi zinc-flake dakọtara kama ịmegharị electroplating.
3. Mgbe izi ezi torque mgbakọ ma ọ bụ arụmọrụ ọtụtụ njigide dị mkpa, rịọ maka uwe elu nke esemokwu na-achịkwa (nkọwa nke esemokwu 0.10-0.18).
4. Jikwaa ma wụnye bolts nke ọma ka ịzenarị mmebi n'ibu na ihe nkiri mkpuchi ahụ dị nro.

8. Nkwubi okwu

Dacromet flange bolts na-enye ezigbo nguzozi nke ike igwe dị elu, nchebe corrosion ogologo oge, nkenke akụkụ na nchekwa ọrụ. Site n'iwepụ ihe ize ndụ nke mgbaka hydrogen na ịnye ndụ ọrụ ọtụtụ afọ ọbụlagodi na gburugburu ebe ike na-eme ihe ike, ha na-ebelata ụgwọ ọrụ mmezi ma na-abawanye ntụkwasị obi nhazi n'ofe ụgbọ ala, ume ọhụrụ-ike, ụlọ ọrụ mmepụta ihe na akụrụngwa. Nkọwapụta doro anya nke ọkwa igwe achọrọ, ọkọlọtọ akụkụ, klaasị arụmọrụ mkpuchi na ihe ọ bụla achọrọ topcoat na-eme ka o doo anya na ihe nkedo ga-arụ ọrụ dịka ebum n'obi n'oge ndụ ọrụ ha niile.