DIN7991 Black Hex Socket Countersunk Head Cap Bolt
Waa maxay boodhka madaxa hex socket countersunk?
bolts Countersunk waa xidheyaal madax fidsan oo leh godka hex ee madaxa.Boolalka Countersunk waxay leeyihiin qoor nooc koofiyad ah oo leh madax siman, boolal madax hex ah oo siman, boolalyada koofiyadaha madaxa ee fidsan waa magac kale oo loo yaqaan boolal madax hex.Cabbirrada boolalka Countersunk waxaa lagu qeexay cabbirada metric iyo imperials oo leh garoon adag oo qaran midaysan (UNC), garoon ganaax ah (UNF), garoon go'an (UN) iyo astaanta metric thread profile ISO.Kuwaas waxaa lagu soo saaraa dhammaan qaybaha agabka iyo ASTM-yada, laakiin inta badan waxaa lagu soo saaraa F568 fasalka 8.8, 10.9,12.9, F593, BS, EN, ISO3506-1, SS304, SS316,2205, iwm.
Codsiyada
Dusha sare ee daloolka dhejiska ee qaybta isku xirka, 90-degree godka wareega wareega ah ayaa lagu farsameeyaa, madaxa mashiinka fidsan ayaa ku yaal godkan wareega, kaas oo ku dhajinaya dusha sare ee qaybta isku xirka.Mashiinnada fidsan ayaa sidoo kale loo isticmaalaa marmarka qaarkood mashiinnada fidsan ee madaxa wareegsan.Karoollada noocan oo kale ah ayaa aad u qurux badan waxaana loo adeegsadaa meelaha dusha sare u oggolaan karo soo-bax yar.
Badiyaa hex socket countersunk koofiyada madaxa waxaa loo isticmaalaa meelaha dusha sare ee qaybta aan la kicin karin ka dib marka la rakibo.Waxaa jira laba nooc oo qaybo ah oo lagu dhejiyo.Dhumucda madaxa, ka dib marka la isku dhejiyo, qayb ka mid ah dunta qulqulka weli ma gelin daloolka dunta.Xaaladdan oo kale, furaha madaxa countersunk dhab ahaantii waa la adkeyn karaa.
Koodhka madaxa furka madaxa countersunk wuxuu leeyahay xagal 90 ° koor ah.Caadi ahaan, xagasha ugu sarreysa ee qashinka cusub ee la soo iibsaday waa 118 ° -120 °.Qaar ka mid ah shaqaalaha aan tababarin ma yaqaanaan farqiga xagasha, waxayna inta badan isticmaalaan 120 ° Reaming, taas oo keenta in muraayadaha madaxa ee countersunk aan la adkeyn marka la adkeynayo muraayadaha madaxa countersunk, laakiin xariiqa hoose ee madaxa birta, taas oo ah mid ka mid ah sababaha loogu yeero hex socket countersunk boolasha koofiyada madaxa aysan adkeyn karin.
Ka-hortagga inta lagu jiro isticmaalka
1. Taper ee dalool reaming waa in ay ahaataa 90 °.Si loo dammaanad qaado, waxa fiican inaad ka yaraato 90 °, oo aan ka badnayn 90 °.Tani waa khiyaamo muhim ah.
2.Haddii dhumucda xaashida xaashida ay ka yar tahay dhumucda madaxa madaxa madaxa countersunk, waxaad bedeli kartaa furaha yar, ama halkii aad ballaarin kartaa daloolka ka yar ballaadhinta godka si dhexroorka daloolka hoose uu u weynaado. qaybtuna cidhiidhi maaha.
3. Haddii ay jiraan godadka koofiyadaha madaxa oo badan oo hex ah, si sax ah u samee inta lagu jiro mashiinka.Mar haddii daloolku qalloocan yahay, way adag tahay in la arko shirka, laakiin waa la adkayn karaa inta khaladku yar yahay, sababtoo ah marka boolalku aanu aad u adkeyn Large (oo aan ka badnayn 8mm), marka uu jiro qalad Fogaanta daloolka, madaxa furka ayaa u qalmi doona xoog marka la adkeeyo, ama waa la adkeyn doonaa.
Qiyaasta Alaabta
| Magaca alaabta | hex socket countersunk madaxa daboolka daboolka |
| Heerka | DIN7991 |
| Dhexroorka | M3-M20 |
| Dhererka | ≤800mm |
| Qalab | Birta Kaarboon, Birta Daawaha ah, Birta Aan Lahayn, Naxaasta |
| Darajo | 4.8,6.8,8.8,10.9,12.9 A2-70 A2-80 A4-70 A4-80 |
| Dulqaad | Metric |
| dhame | Plain, Black oxide, Zinc Plated |
| Baakad | baakado badan (25kg ugu badnaan |
| Codsiga | Birta Dhismaha;Burburinta Birta;Taawarka Saliida & Gaaska;Tamarta dabaysha;Mashiinka Farsamada;Qurxinta Guriga Baabuurka |
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