1.Concept
Bhoudhi yekunze ine hexagonal bhaudhi yesimbi, inozivikanwawo seyekunze hexagonal screw, yekunze hexagonal sikuruu kana yekunze ine hexagonal bhaudhi.

2.Kurapwa kwepamusoro
Mukugadzira mabhoti, kurapwa kwepamusoro ndeimwe yeakakosha malink. Inogona kuita kuti nzvimbo yebhaudhi isangane nezvimwe zvinodiwa uye inovandudza corrosion resistance, simba uye aesthetics.
Kune akawanda marudzi epamusoro ekurapa nzira dzemabhaudhi, akajairika ndeaya anotevera:
Galvanizing: Mabhaudhi anonyudzwa mune zinc solution, uye zinc inoputirwa pamusoro pemabhaudhi akaturikidzana ne layer kuburikidza ne electrochemical reaction, ichiita kuti ive inodzivirira ngura uye isingaore.
Kupisa-dip galvanizing: Mushure mekunge mabhaudhi agadzirwa, anonyudzwa mumvura yakanyungudutswa yezinc, uye zinc layer inoumbwa pamusoro pepamusoro kuburikidza nemakemikari reaction kuti iwane anti-ngura, inodzivirira corrosion uye zvimwe zvinokonzeresa.
Blackening treatment: Firimu dema resimbi oxide rinoumbwa pamusoro pebhaudhi kuburikidza nekemikari kuita kuti rivandudze kusakara kwayo.
Phosphating kurapwa: Soka bhaudhi mune phosphating mhinduro kuti igadzire phosphating firimu pamusoro kuti ivandudze kushora kwayo.
Kuomesa kurapwa: Kuburikidza nekurapa kwekupisa kana kupfapfaidza pamusoro, jira rejasi rine kuomarara kwepamusoro rinoumbwa pamusoro pebhaudhi kuti rivandudze simba raro uye kupfeka kusagadzikana.
Izvo zviri pamusoro apa zvinowanzoitika nzira dzekurapa dzemabhaudhi. Nzira dzakasiyana dzekurapa dzinoenderana nemhando dzakasiyana dzekushandisa uye zvinodiwa. Paunenge uchiita bhaudhi pamusoro pekurapa, inofanirwa kuitwa zvinoenderana neinoenderana zviyero uye zvakatemwa kuti ive nechokwadi chekuti mabhaudhi akarapwa anosangana nezvinodiwa mashandiro ekuita.

3. Level performance
Iyo performance giredhi label yekunze hexagonal bhaudhi ine zvikamu zviviri zvenhamba, izvo zvakateerana zvinomiririra yainzi tensile simba kukosha uye goho reshiyo yesimba reiyo bolt zvinhu.
Semuenzaniso, bhaudhi ine performance level 4.6 zvinoreva:
a. Iyo yezita rekusimba simba reiyo bolt zvinhu inosvika 400MPa;
b. Chiyero chegoho-simba rezvinyorwa zvebhoti ndeye 0.6;
c. Iko simba rekuita goho reiyo bolt zvinhu rinosvika 400 × 0.6 = 240MPa level
Performance level 10.9 yakakwirira-simba mabhaudhi, mushure mekupisa kurapwa, inogona kuwana:
a. Iyo yezita rekusimba simba reiyo bolt zvinhu inosvika 1000MPa;
b. Iko simba rekuita goho reiyo bolt zvinhu rinosvika 1000 × 0.9 = 900MPa.

4. Musiyano uripo pakati peakajairwa ekunze ane hexagonal mabhaudhi uye akakwira-simba rekunze mabhaudhi ane hexagonal
Mabhaudhi ane hexagonal akajairwa anogona kushandiswazve, asi mabhaudhi ane simba repamusoro haagone kushandiswa zvakare.
Mabhoti ane simba guru anowanzogadzirwa nesimbi yepamusoro-soro Nha. Kune mhando dzekukweshana, shandisa torque wrench kuti uise iyo yakatsanangurwa prestress, uye nemhando-inotakura mhando, sunungura torx musoro. Mabhaudhi akajairika anowanzo kugadzirwa nesimbi yakajairika (Q235) uye inongoda kusimbiswa.
Mabhaudhi akajairika anowanzo giredhi 4.4, giredhi 4.8, giredhi 5.6 uye giredhi 8.8. Mabhaudhi ane simba repamusoro anowanzo giredhi 8.8 uye giredhi 10.9, negiredhi 10.9 riri iro rinonyanyozivikanwa.
Iwo maburi maburi emabhaudhi akajairwa haafanire kunge akakura kupfuura ayo epamusoro-simba mabhaudhi. Kutaura zvazviri, mabhoti akajairwa maburi madiki.