Dacromet-rufin Socket Head Cap sukurori

2026-11-03

1. Gabatarwa

Socket head screws, daidaitacce a ciki ISO 4762 / DIN 912 - su ne kusoshi na zaɓi a duk inda manyan maɗaukakin kaya, ƙanƙantan kai, da daidaitaccen sarrafa karfin juzu'i suka taru. Domin yawanci ana kera su a cikin azuzuwan dukiya 8.8, 10.9 kuma musamman 12.9, waɗannan kusoshi suna aiki a babban kaso na ƙarfin amfanin amfanin su, kuma wannan ƙarfin yana sa su zama masu rauni na musamman. hydrogen ebrittlement, damuwa lalata fata, kuma an fara tsatsa a kan fillet na kai da bangon soket na hex.

Dacromet shafi - wanda ba electrolytic zinc-aluminum flake tsarin da aka ayyana ta ISO 10683 kuma Saukewa: ASTM F1136 - yana magance daidai waɗannan raunin. A cikin fim na bakin ciki na 8-12 μm yana ba da 720 zuwa sa'o'i 1,000 na juriya na feshin gishiri zuwa farko. jan tsatsa (ASTM B117 NSS), ba ya haifar da haɗarin haɓakar hydrogen yayin aiki, kuma yana adana madaidaicin juzu'i na hex socket 6g zare haƙuri cewa socket head hula skru sun dogara da.

2. Bolt Geometry da Fasalolin Zane

Socket head screw ƙwanƙwasa ce mai cikakken ƙarfi tare da shugaban silinda da mashin soket hexagon na ciki:

Cylindrical shugabanda a durkusa shimfidar wuri; diamita na kai dk ≈ 1.5 × d - kusan 30-40% karami fiye da madauri mai girman hexagon mai girman guda ɗaya, yana ba da damar ƙaƙƙarfan tsarin kusoshi;
Kai-zuwa-shank fillet, Yankin sauye-sauye na gajiya-mahimmanci inda damuwa ya fi girma;
Cikakkun zaren ko ɓangaren zare(smooth shank) styles; Sasanni-zaren sukurori suna sanya jirgin sama mai ƙarfi a cikin shank ɗin da ba a taɓa yin shi ba don mafi girman ƙarfin ƙarfi;
Bambance-bambancen maki: lebur (chamfered) ma'auni; wurin karekuma mazugi batu don wurin aiki da ayyukan kullewa.

Idan aka kwatanta da hex bolts, SHCS yana haifar da mafi girma riga-kafi don wannan juzu'i na godiya ga ingantaccen socket drive, kuma an shigar da su tare da maɓallan hex, ƙwanƙwasa masu ƙarfi, ko masu sarrafa hex masu ƙarfi - suna sanya su daidaitattun kusoshi a cikin kayan aikin injin, ƙirar allura, manifolds na hydraulic, jigs da kayan aiki, da robotics.

3. Kwatanta Ayyukan Lalata

Rufe kan aji 8.8-12.9 SHCS	Kauri	Gishiri mai fesa zuwa jan tsatsa (ASTM B117)	Hadarin embrittlement na hydrogen	Bayanan kula
Black oxide (baki), mai	<1 m	<24 h	Babu	Kayan kwaskwarima kawai; mai yana wankewa
Zinc phosphate + man	3-5 m	≈ 48-72h	Babu	gamawa "baƙar fata" gama gari, iyakataccen rayuwa
Electro-galvanized Zn12, Cr(VI) - kyauta	12m ku	≈ 192 h	Babban (12.9 ba a ba da shawarar ba)	Socket da zaren bakin ciki-plated
Zinc-nickel alloy electro-platelet	8-12 m	≈ 480-720 h	Matsakaici	Mafi girman farashi; yana buƙatar bayan gasa
Dacromet DAC 320 (Class 2)	8m ku	≈ 720 h	Kusan babu	Azurfa launin toka
Dacromet DAC 500 / baki	10-12 m	≈ 1,000 h	Kusan babu	Baƙin gamawa yayi daidai da jerin baƙaƙe

6. Ma'auni da Tsarin Samfuran Na Musamman

Mahimman ƙa'idodi: ISO 4762 / DIN 912 (socket head hula screws), ISO 898-1 (kayan injina), ISO 10683: 2018 (non-electrolytic zinc flake coatings), Saukewa: ASTM F1136, ASTM B117, ISO 4042 (electrolating da shiriya), DIN 267-28 kuma GB/T 70.1 / GB/T 5267.3.

Siga	Rage gama gari
Diamita	M3 – M42 (Na.4 – 1-1/2)
Tsawon	6 - 300 mm, cikakken zaren ko zaren ɓangaren
Ajin dukiya	8.8 / 10.9 / 12.9
Salon kai	Standard (ISO 4762), ƙananan kai (DIN 6912), kai
Nuna	Flat/makin kare / mazugi
Tufafi	DAC 320 / DAC 400 / DAC 500; azurfa launin toka ko baki; Cr (VI) - kyauta
Haƙuri na zaren	6g, zaren da aka rufe ba tare da sake bugawa ba

7. Aikace-aikace da Jagorar Zaɓin

1.Match shafi zuwa ƙarfi: don nau'in 10.9 da 12.9 bolts, nace akan flake na zinc wanda ba na lantarki ba (Dacromet / Geomet) don kawar da haɓakar hydrogen;

2.Maye gurbin baki oxide da hankali: saka Baƙar fata Dacromet lokacin da abokan ciniki ke son kallon baƙar fata tare da kariyar tsatsa ta gaske;

3.Verify shafi ajita sa'o'in NSS (DAC 320 ≈ 720 h; DAC 500 ≈ 1,000 h) da buƙatar rahoton gwajin masana'anta;

4.Tabbatar da Cr (VI) - passivation kyauta(chromium trivalent) don yarda da RoHS / ELV;

5.Duba bayanan gogayya: samun goro factor da coefficient-of-gogayya rahoton ga karfin juyi-sarrafa taro;

6.Kammala tsarin: yi amfani da rufaffiyar ƙwaya, wanki, da maɗaɗɗen abubuwan da ke dacewa da su don guje wa gaurayawan saiti mai yuwuwa.

8. Kammalawa

Dacromet mai rufi socket head screws ya haɗu da ingantattun ingantattun ingantattun maƙasudin maƙasudin maƙasudin gabaɗaya - ƙaƙƙarfan shugabannin cylindrical, ingantacciyar hanyar hex soket, ƙarfin preload mai girma - tare da tsarin suturar da aka ƙera don ainihin maki masu rauni: babu hydrogen embrittlement akan 12.9 karfe, ɗaukar hoto a cikin soket, rugujewar rugujewa da rugujewar rukunin yanar gizo. kwanciyar hankali ga madaidaicin taro. Ƙayyadaddun daidai, suna isar da sa'o'i 720-1,000 na fesa gishiri a cikin fim ɗin 8-12 μm, kuma suna kawo duhu, matte bayyanar da baƙar fata a cikin sabis na tabbatar da lalata na gaske.

Ba Da. Na gaba.

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