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Darasi na 8.8 Dacromet Hex Bolt –IN 933 | ISO 4014 | Cikakken Zaren Hexagon Bolt tare da Dacromet Anti-Coating Coating
2026-07-06
Matsayin 8.8 Dacromet DIN 933 hex bolt ya haɗu da matsakaicin matsakaicin ƙarfin injin tare da kariyar lalata masana'antu. An karɓe shi sosai a cikin aikin ƙarfe na ƙarfe na waje, makamashin iska, kayan aikin jirgin ƙasa, da ginin gada, wannan fakitin yana ba da ingantaccen aiki mai ƙarfi a ƙarƙashin yanayin muhalli mai buƙata - ba tare da haɗarin haɓakar hydrogen da ke da alaƙa da hanyoyin lantarki ba.
Sashe na 1 - Fahimtar Mataki 8.8
Dangane da ISO 898-1, ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙira ya ƙunshi lambobi biyu waɗanda aka raba su da ma'aunin ƙima. Don Darasi na 8.8:
Lambobin farko (8): Yana nuna 1/100 na ƙaƙƙarfan ƙarancin ƙima a cikin MPa - watau, ƙaramin ƙarfi mai ƙarfi = 800 MPa.
Lambobi na biyu (8): Yana nuna ma'auni mafi ƙarancin ƙarfin amfanin ƙasa zuwa ƙaramin ƙarfi × 10 - watau, rabon amfanin ƙasa = 0.80, ma'ana ƙaramin ƙarfin amfanin gona = 640 MPa.
Kayayyakin Injini
| Dukiya | Daraja | Daidaitawa | Hanyar Gwaji |
| Ƙarfin Jiki (minti.) | 800 MPa | ISO 898-1 | Gwajin tensile |
| Ƙarfin Haɓaka (minti.) | 640 MPa | ISO 898-1 | Gwajin tensile |
| Tabbacin Load Danniya | 580 MPa | ISO 898-1 | Tabbatar da lodi |
| Rabon Haɓaka | 0.80 | ISO 898-1 | Lissafi |
| Hardness (Vickers) | 245-335 HV | ISO 6507 | Gwajin Vickers |
| Hardness (Rockwell) | 22-32 HRC | ISO 6508 | Rockwell gwajin |
| Tsawaitawa a Hutu (minti.) | 12% | ISO 898-1 | Gwajin tensile |
| Tasirin Tasiri (minti.) | 52 J @ -20 °C | ISO 898-1 | Gwajin Charpy |
Grade 8.8 fasteners ana kerarre daga matsakaici-carbon karfe (misali, 45# / SAE 1045) ko low-gawa karfe (misali, 40Cr / SCM435) kuma an hõre quenching da tempering (Q&T) zafi magani don cimma da ake bukata ƙarfi profile. Haɗin ƙarfin ƙarfin ƙarfi mai ƙarfi da rabon amfanin ƙasa mai sarrafawa yana sa ƙwanƙwasa 8.8 mai ƙarfi abin dogaro sosai a cikin haɗin ginin da aka riga aka ɗora.
Filayen Aikace-aikace na yau da kullun
Gina ƙarfe: Tsarin tsari a cikin firam, katako, trusses (BS EN 14399 / ASTM A325-daidai).
Kayan aiki: Decking na gada, dogo na crane, titin gadi na babbar hanya, haɗin gwiwa.
Makamashi mai sabuntawa: Haɗin ginin hasumiya na iska, tsarin hawan hasken rana.
Injina: Firam ɗin injuna na gaba ɗaya, kayan aikin noma, sarrafa kayan aiki.
Mota (ba mai mahimmanci): Hawan chassis, jiki-zuwa-firam, goyan bayan shimfiɗar jaririn inji.
Part 2 — DIN 933 Hex Bolt Standard
DIN 933 (Deutsches Institut für Normung, Cibiyar Matsayin Jamusanci) ya bayyana ma'auni da buƙatun geometric don cikakken zaren hexagon bolts tare da madaidaicin zaren farar awo. Ko da yake an maye gurbinsa da ISO 4017 a matakin kasa da kasa, DIN 933 ya kasance mafi girman ƙayyadaddun siyan masana'antu na Turai da na duniya.
Bayani na DIN 933
Cikakken zaren: An zare kullin tare da dukan tsawon shank ɗin sa - yana haɓaka aikin zaren da rarraba kaya.
Shugaban hexagonal: Daidaitaccen girman faɗin-tsaye-gida yana ba da damar amfani tare da daidaitattun ma'aunin awo da maƙallan soket.
Matsakaicin matakin zaren: Metric m farar (a cikin ISO 261) don haɗuwa da sauri da juriya ga sassauta ƙarƙashin girgiza.
Haƙuri na girma: Matsayin samfurin A (m ≤ 10d ko ≤ 150 mm) da samfurin samfurin B (mafi girma) ta ISO 4759-1.
DIN 933 Dimension Reference Table
Alamar Shaida
DIN 933 Grade 8.8 bolts suna da alamar kai tare da alamar ajin kadarorin "8.8" da alamar ganewar masana'anta. Lokacin da aka rufe dacromet, ƙarin alama ko alama na iya nuna jiyya ta saman.
Sashe na 3 - Kariyar Lalacewar Dacromet
Dacromet (kuma an rubuta shi azaman Dacrotised ko DACROMET®) fasaha ce mai kyauta marar chromate, tutiya-da-aluminium flake-tushen fasahar shafa ruwa da aka samo asali ta Diamond Shamrock Chemicals. Yana ba da kariyar lalata ta hadaya ta musamman kuma ya zama fifikon jiyya na sama don ƙwanƙwasa 8.8 da aka yi amfani da shi a aikace-aikacen muhalli na waje da m.
Yadda Dacromet ke aiki
Rubutun ya ƙunshi nau'ikan tutiya masu ruɓani da ɓangarorin aluminium waɗanda aka haɗa su tare da matrix na tushen chromate na inorganic, wanda aka yi amfani da shi ta hanyar tsomawa kuma an warke a kusan 300 ° C. Ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan hanya don abubuwan lalata, suna ba da kariya duka biyu da na hadaya (galvanic):
Kariyar shinge: Maɗaukaki, yaduddukan flake da suka mamaye jiki suna toshe danshi da ions chloride isa ga ma'aunin ƙarfe.
Kariyar hadaya (galvanic): Zinc flakes ne electrochemically kasa daraja fiye da karfe; suna lalata da kyau, suna kare ɓangarorin ƙarfe da aka fallasa a wuraren da aka yanke da wuraren da suka lalace.
Tasirin warkar da kai: Kayayyakin lalata na Zinc sun ɗan rufe ƙananan lahani, suna ƙara rayuwar kariya.
Maɓallin Aiki Data
| Dukiya | Dacromet | Hot-Dip Galvanizing | Zinc Electroplating | Phosphating |
| Resistance Salt Spray | ≥ 480h (zai iya kaiwa 1000+ h) | 200-500 h | 96-120 h | <72 h |
| Rufi Kauri | 6-10 m | 50-100 m | 5-15 m | 5-15 m |
| Haɗaɗɗen Hydrogen | Babu (ba a buƙatar yin burodi) | Babu | Babban haɗari | Ƙananan haɗari |
| Haƙurin Zare | Ba a shafa (karin gashi) | Sau da yawa abin ya shafa | Gabaɗaya Yayi | Gabaɗaya Yayi |
| RoHS / SANARWA mai yarda | Ee (hexavalent-Cr-kyauta) | Ee | Ya bambanta | Ee |
| Aikace-aikace na yau da kulluns | Tsarin waje, hasumiya ta iska, gada | Waje mai nauyi | Cikin gida/haske | Cikin gida |
Gwajin fesa gishiri ta ISO 9227. Yawan kauri na Dacromet: 6-10 µm. Sakamako na iya bambanta tare da takamaiman tsari da hanyar aikace-aikace.
Ma'auni & Ƙididdiga masu aiki
ISO 10683: Rubutun flake na zinc wanda ba a amfani da shi ba na lantarki don masu ɗaure.
TS EN ISO 10683: Tsarin Turai na ISO 10683.
ASTM F1136: Zinc/aluminium lalata-kariyar sutura don masu ɗaure.
VDA 235-104: Matsayin kera motoci na Jamus don suturar flake na zinc.
Game da Fujirui Karfe - Ƙwararrun Maƙerin Fastener Manufacturer & Mai Fitarwa
Fujirui Metal ke ƙerawa da fitar da madaidaicin kayan haɗin gwiwa ciki har da Grade 8.8 / 10.9 / 12.9 hex bolts, DIN 933 ƙwanƙwasa mai cikakken zaren, DIN 931 ƙwanƙwasa-tsalle-tsalle, kusoshi ingarma, da masu ɗaure na al'ada. Zaɓuɓɓukan jiyya na saman sun haɗa da Dacromet, Ruspert, galvanising mai zafi mai zafi, da lantarki na zinc. Ana kera duk samfuran zuwa ISO, DIN, da ma'aunin ASTM tare da cikakkun takaddun gwajin kayan (MTC).
