Txij li Kev Tawm Tsam Nails

Self-tapping Screws
Self-tapping ntsia hlau yog ib yam ntawm threaded fastener, uas drills tus poj niam xov nyob rau hauv lub pre-drilled qhov ntawm hlau los yog nonmetal ntaub ntawv.

Khoom Taw Qhia
Vim tias nws yog tus kheej tsim los yog tuaj yeem coj mus rhaub cov xov uas phim nws, nws muaj peev xwm los tiv thaiv xoob thiab tuaj yeem sib sau ua ke thiab disassembled.Tus kheej tapping ntsia hlau cov ntaub ntawv tuaj yeem muab faib ua carbon steel thiab stainless hlau, cov pa roj carbon steel feem ntau yog 1022 nruab nrab carbon steel, uas feem ntau yog siv rau ntawm qhov rooj, qhov rais thiab cov ntawv hlau.Nws lub taub hau yog ib tug bearing nto tsim los ntawm ib feem uas nws ib tug kawg yog ua rau ib tug loj loj.
Rau cov xov sib sau thiab xov txiav, Flat Countersunk taub hau, Oval Countersunk lub taub hau, Yias lub taub hau, Hex thiab Hex washer Lub taub hau yog qhov tseem ceeb tshaj plaws, uas suav txog yuav luag 90% ntawm tag nrho tus kheej-drilling screws.Lwm tsib hom yog Flat Undercut, Flat Trim, Oval Undercut, Oval Trim, thiab Fillister, uas tsis tshua muaj tshwm sim.

Kev loj hlob
Nyob rau lub sijhawm ntawd, nws tau siv los sib koom ua ke ntawm cov ntawv hlau ntawm cov ducts ntawm cov tshuab cua txias, yog li nws tseem hu ua cov ntawv hlau ntsia hlau.Tom qab ntau tshaj 80 xyoo ntawm txoj kev loj hlob, nws muaj peev xwm muab faib ua plaub lub sij hawm-xov txoj kev, xov txiav, xov dov thiab nws tus kheej-drilling.
Xov-forming tus kheej-tapping ntsia hlau yog ncaj qha tsim los ntawm tin ntsia hlau, thiab rau cov xov sib sau screws, ib lub qhov yuav tsum tau drilled ua ntej, ces cov ntsia hlau yog screwed rau hauv lub qhov.
Cov xov txiav tus kheej tapping ntsia hlau txiav ib los yog ntau tshaj qhov chaw ntawm tus Tsov tus tw kawg ntawm cov xov, yog li ntawd thaum lub hau ntswj ntsia hlau mus rau hauv lub pre-drilled qhov, tus Tsov tus tw thiab tus hniav ntawm cov ntsia hlau tuaj yeem siv los txiav cov poj niam sib xws. xov nyob rau hauv ib txoj kev zoo ib yam li tapping.Nws tuaj yeem siv rau hauv cov phaj tuab, cov ntaub ntawv nyuaj lossis cov khoom tawg yooj yim uas tsis yooj yim rau molded.
Threaded self-tapping screws muaj tshwj xeeb tsim threads thiab tus Tsov tus tw kawg, yog li ntawd cov screws yuav dov mus rau hauv poj niam threads los ntawm lawv tus kheej nyob rau hauv lub intermittent siab.Nyob rau tib lub sijhawm, cov khoom nyob ib ncig ntawm lub qhov tuaj yeem yooj yim sau qhov chaw ntawm cov xov thiab cov hniav hauv qab ntawm tus kheej tapping screws.Vim tias nws qhov kev sib txhuam quab yuam me dua li ntawm cov threaded self-tapping screws, nws tuaj yeem siv rau hauv cov ntaub ntawv tuab, lub zog xav tau rau kev sib hloov yog tswj tau zoo dua, thiab lub zog tom qab kev sib xyaw yog siab dua.Cov txheej txheem engineering txhais ntawm xov dov nws tus kheej tapping ntsia hlau yog siab dua thiab meej dua li ntawm kev tsim lossis txiav tus kheej tapping ntsia hlau hauv cov khoom siv hluav taws xob, uas ua rau cov xov dov nws tus kheej tapping ntsia hlau tiag tiag "cov qauv" fastener.
Tus kheej-drilling ntsia hlau tsis xav tau pre-drilling, uas tuaj yeem txuag tus nqi thiab kev sib koom ua ke drilling, tapping thiab screwing.Lub hardness ntawm qhov chaw thiab cov tub ntxhais hardness ntawm lub laum tail ntsia hlau yog me ntsis siab dua li cov ntawm tus kheej-tapping ntsia hlau, vim hais tias lub laum tail ntsia hlau muaj ib tug ntxiv drilling ua hauj lwm, thiab laum tail ntsia hlau tseem xav tau ib tug nkag mus rau hauv lub xeem los ntsuam xyuas tias tus ntsia hlau tuaj yeem xyaum thiab coj mus rhaub cov xov hauv lub sijhawm teev tseg.

Kev faib tawm
Round taub hau: Nws yog hom taub hau uas siv ntau tshaj plaws yav dhau los.
Lub taub hau tiaj tus: tus qauv tsim tshiab uas tuaj yeem hloov lub taub hau puag ncig thiab nceb taub hau.Lub taub hau muaj ib txoj kab uas hla loj, thiab lub periphery ntawm lub taub hau yog txuas nrog ib tug high-profile ntug, uas ua rau nws ua si lub luag hauj lwm tsav tsheb nyob rau hauv high-lub zog torque.
Lub taub hau hexagon: Qhov no yog ib hom qauv uas siv rau lub taub hau hexagonal.Nws yog characterized los ntawm trimming ntse ces kaum kom ze rau qhov kam rau ua ntau yam.Nws yog haum rau ntau yam qauv qauv thiab ntau yam xov diameters.
Tsav hom: slotted, Philips, thiab pozi .
Cov Qauv: National Standard (GB), German Standard (DIN), American Standard (ANSI) thiab British Standard (BS)

Status Quo
Tam sim no, muaj ob hom self-tapping screws feem ntau siv nyob rau hauv Suav teb: countersunk taub hau thiab lauj kaub taub hau.Lawv cov kev kho tiav yog feem ntau xiav zinc plating, thiab lawv tau quenched thaum lub sij hawm tsim khoom, uas yog qhov peb feem ntau hu ua kev kho cua sov, thiaj li ntxiv dag zog rau lub hardness.Tus nqi tom qab kev kho cua sov yog ib txwm siab dua qhov tsis muaj kev kho cua sov, tab sis nws qhov hardness tsis siab npaum li tom qab kev kho cua sov, yog li nws nyob ntawm seb cov khoom siv twg siv.

Daim ntawv thov
Self-tapping locking screws kuj yog siv rau kev sib txuas ntawm cov hlau nyias nyias.Nws cov xov yog ib qho xov uas muaj ib qho arc daim duab peb sab hla ntu, thiab qhov saum npoo ntawm cov xov kuj muaj siab hardness.Yog li ntawd, thaum sib txuas, cov ntsia hlau tseem tuaj yeem coj mus rhaub cov xov sab hauv hauv qab lub qhov ntawm cov xov ntawm cov khoom txuas, yog li tsim kev sib txuas.Cov ntsia hlau zoo li no yog tus cwj pwm los ntawm qhov tsis muaj qhov ntsuas qhov ntsuas qhov ntsuas thiab qhov ntsuas qhov ntsuas siab.Nws muaj kev ua haujlwm zoo dua li qhov zoo tib yam tus kheej tapping screws thiab tuaj yeem siv tsis siv lub tshuab screws.
Self-tapping screws rau phab ntsa yog siv rau kev sib txuas ntawm gypsum wallboard thiab hlau keel.Nws cov xov yog ob txoj xov, thiab qhov saum npoo ntawm cov xov muaj qhov nyuaj siab (≥HRC53), uas tuaj yeem ntsia tau sai rau hauv keel yam tsis tau ua qhov prefabricated qhov, yog li tsim kev sib txuas.
Qhov sib txawv ntawm tus kheej-drilling screws thiab tus kheej-tapping screws yog tias elf-tapping screws yuav tsum mus dhau ob txheej txheem: drilling thiab tapping.Rau tus kheej-drilling screws, ob txheej txheem ntawm drilling thiab tapping yog ua ke.Nws siv lub laum me ntsis nyob rau hauv pem hauv ntej ntawm lub hau ntswj ua ntej, thiab tom qab ntawd siv cov ntsia hlau los kais, txuag lub sijhawm thiab txhim kho kev ua haujlwm.
Yias lub taub hau thiab hexagon taub hau self-tapping screws yog tsim rau cov xwm txheej uas lub taub hau raug tso cai kom raug.Hexagon taub hau tus kheej tapping ntsia hlau tuaj yeem siv lub zog loj dua li lub taub hau lub taub hau nws tus kheej tapping screws.Countersunk self-tapping screws yog tsim rau lub sijhawm uas lub taub hau tsis raug tso cai kom raug.

Txhais
Feem ntau, nws txhais tau hais tias cov xov yog tus kheej tapping, yog li nws tsis tas yuav siv cov txiv ntoo.Muaj ntau hom ntsia hlau, nrog rau sab nraud hexagon taub hau, lub taub hau lauj kaub, lub taub hau countersunk thiab lub taub hau sab hauv hexagon.Thiab tus Tsov tus tw yog feem ntau taw tes.

Muaj nuj nqi
Self-tapping screws yog siv rau nonmetal lossis mos hlau, tsis muaj pre-drilled qhov thiab tapping;Self-tapping screws yog taw tes, thiaj li mus rau "tus kheej-kais".Tus kheej tapping screws tuaj yeem laum cov xov sib txuas ntawm cov khoom kom kho los ntawm lawv tus kheej cov xov, kom lawv tuaj yeem sib haum nrog ib leeg.