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Isicelo | Isikrufu sokuzibhora sinendawo yokubhola esusa ukugrumba okwahlukileyo kunye nokusebenza ngokucofa ngokukhawuleza, ufakelo olunoqoqosho ngakumbi. Indawo yokubhola ivumela ukuba ezi zikrufu zifakwe kwisiseko sentsimbi ukuya kuthi ga kwi-1/2 "engqindilili. Izikrufu zokuzibhola ziyafumaneka kwiintlobo ngeentlobo zezitayela zentloko, ubude bemisonto, kunye nobude befleyiti yokubhoboza iidayamitha ezizikrufu #6 thru 5/ 16"-18. |
Umgangatho | Izikrufu ezidibana ne-ASME B18.6.3 okanye iDIN 7504(M) enemigangatho yemilinganiselo |
1. I-pan head self-drilling screws inentloko engqukuva, eneprofayile ephantsi ehlala ngaphezulu komphezulu wento. Olu yilo lwentloko lusasaza uxinzelelo ngokulinganayo, lukhusela umonakalo kwizinto ezithambileyo ezifana neenkuni okanye iplastiki ngelixa unikezela ngokubonakalayo, ukubonakala okugqityiweyo.
2. Ukubunjwa kwensimbi engenasici kunika ukuxhathisa kwe-corrosion ephezulu, okwenza ezi zikhonkwane ziphelele kwiindawo zangaphandle kunye nolwandle.
3. Ngokuzibhobhoza kunye neempawu zokuzibamba, ukufakwa ngokukhawuleza, ukunciphisa ixesha lomsebenzi kunye neendleko.
4. Ukwakhiwa kwensimbi engenasici kuqinisekisa amandla aphezulu kunye nokuqina, nakwizicelo ezifunwayo.
5. Ukugqiba intsimbi ecwebezelayo inika inkangeleko yobuchwephesha kunye necocekileyo, ngakumbi kwiifakelo eziveziweyo.
6. Izikrufu zixhotyiswe ngemisonto ebukhali, eyinjineli echanekileyo enqumla kwii-substrates ezahlukeneyo, ezifana neshiti lentsimbi, umthi, kunye neplastiki, ngaphandle kwesidingo somngxuma owenziwe ngaphambili. I-threading yenzelwe ukufakwa okugudileyo kunye namandla okubamba ubuninzi.
7. I-AYA inika uluhlu lobungakanani ngokobude, ububanzi, kunye nentambo yentambo ukuhlangabezana neemfuno ezahlukeneyo zesicelo. Zifumaneka kwimetric kunye nobukhulu bobukhosi, ziqinisekisa ukuhambelana noluhlu olubanzi lweeprojekthi.
8. Izikrini ze-AYA ezingenasici zihlangabezana nemigangatho yamazwe ngamazwe kumgangatho kunye nokusebenza, ukuqinisekisa ukusebenza okuthembekileyo kwizicelo ezibalulekileyo.
• Ulwakhiwo: Ezi zikrufu zisetyenziswa kakhulu kwifreyim yentsimbi, ukugquma, kunye nezinye izinto zolwakhiwo.
• Uphahla kunye noKufakela: Kukulungele ukuqiniswa kwentsimbi ukuya kwintsimbi kwiiprojekthi zokuphahla, kunye nokuncamathisela iiphaneli kunye neepaneli.
• I-HVAC: Isetyenziswa kufakelo lwe-ductwork kunye namanye amacandelo e-HVAC.
• Ukufakwa koMbane: Kufanelekile ukukhusela iibhokisi zombane kunye neepaneli kwizakhiwo zetsimbi.
Ubungakanani bomsonto | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||
P | I-pitch | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
a | max | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
dk | max | 5.6 | 7 | 8 | 9.5 | 11 | 12 | |
imiz | 5.3 | 6.64 | 7.64 | 9.14 | 10.57 | 11.57 | ||
k | max | 2.4 | 2.6 | 3.1 | 3.7 | 4 | 4.6 | |
imiz | 2.15 | 2.35 | 2.8 | 3.4 | 3.7 | 4.3 | ||
r | imiz | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | |
R | ≈ | 5 | 6 | 6.5 | 8 | 9 | 10 | |
dp | 2.3 | 2.8 | 3.6 | 4.1 | 4.8 | 5.8 | ||
Uluhlu lokumba (ubukhulu) | 0.7~1.9 | 0.7~2.25 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 | ||
Inombolo yesokethi. | 1 | 2 | 2 | 2 | 3 | 3 | ||
M1 | 3 | 3.9 | 4.4 | 4.9 | 6.4 | 6.9 | ||
M2 | 3 | 4 | 4.4 | 4.8 | 6.2 | 6.8 |