Phau Ntawv Qhia rau Fastener Basics

Fasteners yog qhov tseem ceeb ntawm cov khoom siv kho tshuab uas ua kom muaj kev sib raug zoo ntawm ob lossis ntau qhov chaw. Lawv tau siv dav hauv kev tsim vaj tsev, kev tsim tshuab, khoom siv hluav taws xob, thiab cov tshuab hluav taws xob tshiab. Lawv cov txiaj ntsig tseem ceeb nyob hauv kev ua tiav cov kev sib txuas tswj tau, kev tshem tawm (hauv qee hom), thiab cov qauv kev ruaj ntseg.

 

 

 

Los ntawm kev xav txog kev siv engineering, fasteners feem ntau muab faib ua 12 pawg hauv qab no:

 

1. Bolts

Ua los ntawm ib lub taub hau thiab threaded shank, lawv xav tau ib tug txiv ntoo siv. Haum rau los ntawm - qhov kev sib txuas, lawv yog cov kev sib txuas sib txuas. Cov khoom lag luam muaj xws li Hex Bolts thiab Flanged Hexagon Head Bolt Screws, dav siv hauv cov qauv hlau thiab cov khoom siv.

 

2. Studs

Headless lug nrog cov xov sab nraud ntawm ob qho kawg. Ib kawg screws rau hauv cov txiv ntoo, thiab lwm qhov kawg yog ruaj nrog ib tug txiv ntseej. Haum rau siab - siv los yog nquag disassembly scenarios.

 

3. Cov ntsia hlau

Nws tuaj yeem ntsia tau ncaj qha rau hauv cov qhov threaded los yog siv nrog txiv ntseej. Raws li kev tsim kho, lawv suav nrog:

Tshuab Ntsia Hlau nrog Phillips Lub Taub Hau

Pan Head Screw (Stainless hlau)

Countersunk Flat Head Screws

Stainless hlau lauj kaub taub hau ntsia hlau yog tsim rau corrosion- ib puag ncig tiv taus.

 

4. Ceev

Internal threaded fasteners uas ua tiav kev sib txuas ua ke nrog bolts lossis studs, xws li:

M10 304 Stainless Steel Hex Bolt Screw Nut Flat Washer Combination

 

5. Tus kheej -tapping Screws

Lawv tsim lawv tus kheej cov xov hauv cov khoom siv thiab feem ntau siv rau cov ntawv nyias nyias, xws li:

Stainless hlau ntawv hlau screws

 

6. Ntoo Screws

Tshwj xeeb tsim rau kev sib txuas ntawm cov ntoo, lawv muaj cov xov sib sib zog nqus thiab cov hlau lead loj.

 

7. Cov ntxhua khaub ncaws

Siv los faib cov khoom thauj, tiv thaiv kom tsis txhob xoob, lossis tiv thaiv qhov chaw tiv tauj, xws li lub tshuab ntxhua khaub ncaws caij nplooj ntoos hlav thiab cov ntxhua khaub ncaws tiaj tus . 8. Retaining Rings

Siv nyob rau hauv shafts los yog qhov los txwv axial txav ntawm qhov chaw.

 

9. Pins

Siv rau qhov chaw lossis thauj khoom thauj.

 

10. Rivets

Tsim ib qho kev txuas mus tas li, tsis yog - tshem tau kev sib txuas.

 

11. Cov rooj sib txoos

Ua ntej- sib dhos fasteners, xws li:

Bolt + Washer Combination (Hexagon Lub Taub Hau Tshuab Screw Metric Thread Flat Spring Lock Washer Bolt 304 Stainless Steel)

12. Weld Studs

Tsau rau hauv cov khoom siv los ntawm vuam rau kev sib dhos tom ntej.

 

 

 

1. Kev ua haujlwm ntawm cov xov

Cov xov yog cov qauv tseem ceeb ntawm fasteners, feem ntau ua haujlwm hauv qab no:

Fastening kev sib txuas
Force kis tau tus mob
Sealing txuas (pipe threads)

Lawv qhov zoo yog nyob rau hauv lawv cov qauv yooj yim, muaj kev ntseeg siab, thiab yooj yim ntawm kev sib dhos thiab disassembly.

 

2. Kev faib cov xov

(1) Kev faib tawm los ntawm Daim Ntawv Thov

Ordinary Threads (rau fastening): Daim duab peb sab hniav profile, feem ntau siv

Transmission Threads: Trapezoidal, duab plaub, thiab lwm yam.

Sealing Threads: Yeeb Nkab Xov

Xov xwm tshwj xeeb

(2) Kev faib tawm los ntawm Standard System

Metric Xov

Unified Xov (British/American)

 

3. Cov ntsiab lus tseem ceeb

Loj Dia

Me kab

Pitch Diameter - txiav txim siab kev ua tau zoo

Suab

Xov Angle

Sab laug- tes / sab xis- tes

 

 

1. Cov txheej txheem tshuaj xyuas

Cov cuab yeej tshuaj ntsuam xyuas muaj xws li:

Xov nplhaib gauge (sab nraud xov)

Thread plug gauge (Internal xov)

Siv los simulate los ua ke tej yam kev mob rau kev txiav txim tsim nyog.

 

2. Pitch Diameter ntsuas

Lub suab txoj kab uas hla ncaj qha cuam tshuam rau kev ua haujlwm haum. Cov txheej txheem muaj xws li:

Peb-xov tooj txoj kev; Pitch micrometer

 

3. Thread Fit Qib

(1) Imperial System

1A / 1B: xoob haum

2A / 2B: General haum

3A / 3B: Siab precision

(2) Metric System

Kev sib xyaw ua ke:

6H / 6g (Standard haum)

6G / 6e (Thick txheej)

4H / 4h (siab precision)

 

 

Cov khoom siv fastener ncaj qha txiav txim siab nws cov khoom siv kho tshuab thiab kev tiv thaiv ib puag ncig.

 

1. Cov khoom siv

Carbon Steel (High Strength, Tsawg nqi)

Stainless hlau (Corrosion Resistant)

Alloy Steel (High-Kev siv zog)

Yam khoom:

M6 Hexagon Socket Lub Taub Hau Ntsia Hlau 304 Stainless Hlau Knurling
Pav ca- taub hau Hexagon Socket Stainless Steel Screws

 

2. Kev kho cua sov yuav tsum tau ua

Xws li:

Quenching
Kub Hardening

Siv los txhim kho:

Tensile zog
Fatigue Lub Neej
Hnav Resistance

 

3. Mechanical Performance Indicators

Key Parameters:

Tensile zog
Yield zog
Hardness

 

 

 

1. Steel Structure Connections

Feem ntau siv siab - lub zog bolt txuas, hais txog:

Preload Control
Kev sib txhuam- hom kev sib txuas

 

2. Hluav taws xob thiab kev sib txuas Terminals

Piv txwv:

M10 Clamp Hlau Terminal
M8 Socket Head Cap Screws Terminal nrog Spacer

Siv rau kev sib txuas conductive thiab kev txhim kho cov txheej txheem.

 

3. Cov khoom siv precision

Kev siv:

Teem Ntsia Hlaunrog Hollow Head Bolt Base rau txoj hauj lwm xauv thiab zoo -tuning.

 

 

Hauv kev tsim khoom thiab tsim engineering, cov kev ntsuas hauv qab no yuav tsum tau muab tshwj xeeb:

 

Hom kev sib txuas (tshem tau)

Load hom (static / dynamic)

Environmental tej yam kev mob (corrosion, kub)

Kev txwv qhov chaw sib dhos

Cov qauv thiab ntawv pov thawj yuav tsum tau

 

Basic general-cov khoom siv xws li cov ntsia hlau hlau tuaj yeem ua tau raws li cov kev xav tau niaj hnub no, thaum cov hlau tsis muaj steel lossis qib siab - cov khoom siv zog yuav tsum tau ua qhov tseem ceeb hauv siab - cov xwm txheej muaj kev ntseeg siab.

 

 

Txawm hais tias fasteners yog cov khoom tseem ceeb, lawv cov qauv tsim, xaiv, thiab daim ntawv thov cuam tshuam ncaj qha rau kev nyab xeeb thiab kev ntseeg tau ntawm tag nrho cov qauv. Los ntawm cov txheej txheem kev faib tawm thiab cov ntsiab lus xov mus rau cov khoom siv thiab cov qib haum, txhua yam yuav tsum muaj qhov tseeb engineering logic. Rau cov neeg ua haujlwm muag khoom thiab cov kws tshaj lij engineering, kev paub txog qhov kev paub yooj yim no yog qhov tseem ceeb rau kev ua tiav kev xaiv thiab kev tswj kom zoo.