Nhama a wɔde twitwa nneɛma ho a wɔde di dwuma .

Screws a wɔyɛ no yɛ adeyɛ a mfomso wɔ mu. Bere a wɔ wiase a eye mu no, skru biako biara ne nsusuwii ho nsusuwii a ɛfa nkɔnsɔnkɔnsɔn a wɔabɔ no ho no bɛyɛ pɛ no, nokwasɛm no ne sɛ wɔn a wɔyɛ no ntumi nyɛ nkɔnsɔnkɔnsɔn no mfonini pɛpɛɛpɛ a ɛte saa. Ne saa nti, hia a ehia sɛ wɔyɛ susudua bi a ɛda sɛnea wɔma kwan ma wɔtwe wɔn ho fi profile no ho no adi.
Mpɛn pii no, wɔfrɛ eyi asaawa a wɔde gyina ano. Thread tolerance kyerɛ levels a thread bi betumi atwe ne ho afi basic thread profile no ho na ɛda so ara tumi nya nkitahodi a ahobammɔ wom. Saa adwene yi a wɔbɛte ase no betumi ayɛ ade titiriw, efisɛ ɛboa obi ma ɔte nea ɛma screw biara yɛ soronko no ase yiye, na ɛsan nso kyerɛ screw a, ɛsɛ sɛ wɔde wɔn ani si so yiye.

 

 

Dɛn ne screw threads a wotumi gyina ano?

Thread tolerancing no kyerɛ deviation dodow a wɔma ho kwan bere a wɔreyɛ screws no titiriw. Saa twetiatwa ketewaa yi bɛkyerɛ sɛ bere a ɛnyɛ nkɔnsɔnkɔnsɔn nyinaa na ɛyɛ pɛ koraa no, wɔn nyinaa betumi ayɛ nea ɛfata koraa bere a ɛho hia sɛ wode di dwuma no.

 

 

Dɛn nti na ɛho hia sɛ wɔde screw thread tolerancing di dwuma?

Ntease ahorow abien a ɛsono emu biara wɔ hɔ a ɛde kɔ screw thread tolerancing so na ebetumi ayɛ ade titiriw wɔ nea enti a eyi ho hia no ntease mu.
1. Ɛka a wɔbɔ-nneɛma a wɔyɛ no yiye .
Sɛnea ɛte no, tumi kɛse biako a ɛkanyan asaawa a ɛma wotumi gyina ano no ne nokwasɛm a ɛyɛ sɛ nnwumakuw no ntumi nyɛ nneɛma a wɔyɛ no brɛoo mfa nnye nhama a wɔde twitwa nneɛma a ɛyɛ pɛpɛɛpɛ. Esiane sɛ eyi yɛ adeyɛ a ɛho ka yɛ den yiye nti, sɛ wowɔ ɔkwan bi a wobɛfa so de mpoano aba fam denam tolerancing a wode bɛba no so a, ebetumi ayɛ ade titiriw. Bere a nneɛma a wɔyɛ no pii no yɛ kɛse ma ɛka a wɔbɔ wɔ ade bi a ɛkɔ nea wɔde di dwuma ho no ho no, ebetumi ama ade no ayɛ nea entumi nyɛ adwuma yiye.
2. hwɛ hu sɛ ɛyɛ gyinapɛn na ɛfata .
Nea enti a tolerancing ne titiriw no yiye-Regulated tolerancing ho hia saa ne sɛ nokwarem no, ɛboa hwɛ hu sɛ ɛmfa ho deviation a ɛkɔɔ so no. Nea ɛde aba ne sɛ, wubetumi anya awerɛhyem sɛ nneɛma a woapaw ama wo dwumadi no bɛboa wo ma woakyekye adwuma a ɛyɛ nwonwa.

 

 

Bere bɛn na ɛho hia sɛ wode screw threads a ɛwɔ thread tolerance a ɛkorɔn di dwuma?

 

Mpɛn pii no, sɛ ɛba mass-a wɔayɛ no screws a ɛda adi kɛse sɛ wubehu sɛ thread tolerance a ɛwɔ screws no so no rekɔ soro. Eyinom taa yɛ kɛse ma non{2}}Specialized Usage na ɛda adi kɛse sɛ ɛbɛyɛ screws a wode di dwuma ma at-Home projects. Eyi fã bi ne sɛ wɔn screws no benya abodwokyɛre data a ɛkyerɛ sɛ wɔayɛ no sɛnea wogye tom wɔ ɔkwan kɛse so a ɛnyɛ pɛ dodo.

 

 

Bere bɛn na ɛho hia sɛ wode screw threads a ɛwɔ thread tolerance a ɛba fam di dwuma?

Dodow a asaawa no a wotumi gyina ano no kɔ soro no, dodow no ara na nkɔnsɔnkɔnsɔn no nyɛ pɛ wɔ akwan pii so. Mpɛn pii no, bere a ɛkorɔn-Thread tolerance screws bɛyɛ adwuma ama dodow no ara wɔ-ofie nnwuma, low-Thread-tolerance screws behia sɛ ɛyɛ nea nnipa a wɔwɔ nnwuma titiriw mu de di dwuma. Wɔtaa yɛ saa nkɔnsɔnkɔnsɔn ahorow a ɛyɛ pɛpɛɛpɛ yi ma nnwuma a emu yɛ duru anaa nnwuma afoforo a ɛyɛ den kɛse te sɛ ahunmu adwuma anaa wimhyɛn adwumayɛ. Sɛnea saa nnwuma yi bɛtaa anya amanne-ayɛ screws no ɛho nhia sɛ wɔyɛ mass manufacturing, a ɛkyerɛ sɛ screw biara ho ka betumi ayɛ kɛse bere tenten a wɔhwɛ hu sɛ nea ebefi mu aba awiei no wɔ asaawa dodow a ɛba fam a ɛbɛma adwinnan no su ayɛ kɛse.

 

 

Dɛn ne allowance?

 

Sɛ ɛba nuts ne screws so a, mpɛn pii no nsonsonoe wɔ mfitiase nsusuwii profile a ɛwɔ saa fasteners yi mu ne ankasa manufactured profile of the good produced. Nsonsonoe a ɛda nea ɛsɛ sɛ nsusuwii asaawa no yɛ ne asaawa ankasa no ntam no yɛ nea wonim no sɛ allowance wɔ inch{1}}gyinaso nhama mu. Mpɛn pii no, eyi brɛ eyi ase esiane nhama a wɔde kata so no nti, na awiei koraa no ɛboa ma nsonsonoe no so tew denam ade a wɔde kata so no mu duru so. Saa coating yi akyi no, ɛsɛ sɛ thread count ankasa no nyɛ nea ɛfa basic profile no ho.

 

 

Ɔkwan bɛn so na wɔkyerɛ designations ma metric thread?

Mpɛn pii no, wɔde nsɛm a ɛfa thread tolerance class no ho bɛka metric thread bi ho. Amanaman Ntam Ahyehyɛdeɛ a ɛhwɛ gyinapɛn so (ISO) no wɔ anohyetoɔ pɔtee bi ma metric screw thread no. Sɛnea ISO 965 kyerɛ no, mpɛn pii no, screw threads no benya tolerances abien. Nea edi kan no yɛ abɔnten ntwemu a ɛsen biara, anaasɛ asaawa no ntwemu titiriw, bere a nea ɛto so abien no yɛ ɛnne nnyigyei a ɛyɛ kɛse, a wɔtaa susuw fi mfinimfini no. Sɛ nhwɛsoɔ no, sɛ skru a worehwɛ no ka M11 x 1 – 5G6G a, ɛnde nhama no wɔ din mu ntwemu 11mm ne pitch a ɛyɛ 1mm. Efi hɔ no 5G a edi kan no bɛkyerɛ tolerance class a ɛwɔ pitch diameter no mu, bere a 6G a ɛto so abien no bɛkyerɛ tolerance class a ɛwɔ major diameter no mu.

 

 

So threads ne h anohyeto ahorow no ho hia wɔ screw tolerancing mu?

 

Nhama ahorow abiɛsa a wɔasisi no wɔ hɔ a ɛsɛ sɛ wosusuw ho, saa nhama akuw yi boa ma wɔkyerɛkyerɛ mu titiriw sɛ ebia ɛsɛ sɛ wode-tolerance thread nut anaa screw di dwuma anaasɛ ɛnsɛ sɛ wode di dwuma. Sɛnea ɛbɛyɛ a saa adesua ahorow yi bɛyɛ nea ntease wom no, ebehia sɛ wokae sɛ wɔde "A" di dwuma ma screws, bere a wɔde "B" di dwuma ma nuts anaa emu nhama ahorow afoforo.

Class 1B asaawa .
Class 1B thread, kyerɛ sɛ 1A screw betumi ayɛ mmerɛw sɛ wɔde bedi dwuma ama fit pa wɔ 1B thread mu. Wɔ fã kɛse no ara mu no, eyinom nni tolerance levels a ɛba fam koraa a ɛno nti na wɔmfa nni dwuma mpɛn pii wɔ dade adwuma biara mu no. Esiane sɛ ɛnyɛ den sɛ wɔbɛhyehyɛ saa nkɔnsɔnkɔnsɔn ne nnuaba yi nti, wɔtaa frɛ no aguadi a ɛnyɛ den.

Class 2B asaawa .
Saa ara nso na saa adesua yi yɛ nea wɔde 2A screw di dwuma wɔ 2B tokuru mu. 2B thread no wɔ tolerance allowances a ɛtrɛw araa ma wobetumi de adi dwuma ankasa wɔ nnwuma dodow bi mu. Ɛsan nso yɛ adwuma yiye efisɛ ebetumi nso agye plating, finishing, ne mpo coating bi. Ɛtɔ mmere bi a wɔfrɛ eyi sɛ medium fit.

Class 3B asaawa .
Awiei koraa no, wɔde 3B asaawa no di dwuma wɔ nsɛm nyinaa mu a anohyeto ahorow a ɛwɔ tolerance no mu no sua koraa anaasɛ ɛbɛn. Enti wɔtaa de eyinom di dwuma wɔ atirimpɔw ahorow a ɛyɛ soronko kɛse mu. Wɔtaa frɛ eyi sɛ ɛyɛ nea ɛfata denneennen.

 

 

Dɛn ne abodwokyɛre gyinabea ahorow?

Mpɛn pii no, wɔde krataa bi na ɛkyerɛ gyinabea ahorow a ɛma wotumi gyina ano. Gyinapɛn no ne sɛ wɔde nkyerɛwde a ɛwɔ soro no di dwuma ma nut nhama, bere a wɔde nkyerɛwde nketewa di dwuma ma bolt nhama. Tolerance gyinabea no kyerɛ kwan a ɛda tolerance no ne thread profiles no basic size no ntam.
Dɛn ne gyinabea ahorow a ɛma wotumi gyina nuts ne bolts ano?
Nut threads wɔ tolerance gyinabea abien a ɛsono emu biara. H yɛ zero fapem deviation, bere a g yɛ fapem deviation pa.
Bolts deɛ, ɛwɔ tolerance positions anan. Saa ara nso na H wɔ zero fapem deviation, bere a abodwokyɛre gyinabea abiɛsa a aka no wɔ mfitiase deviations bɔne.

 

 

Dɛn ne ade titiriw a ɛma obi twe ne ho fi ho na dɛn ne ade titiriw a ɛyɛ mfitiasede?

 

A positive fundamental deviation kyerɛ sɛ thread element no kɛse rekɔ kɛse asen mfitiase kɛse no. Ɔkwan foforo so no, negative fapem deviation no bɛkyerɛ sɛ thread element sizes no rekɔyɛ nketewa sen basic size no.

 

 

Dɛn ne standard thread anohyeto no?

Standard thread limit no yɛ nkyerɛkyerɛmu tẽẽ a ɛfa notation system a wɔde di dwuma mprempren no ho. Anohyeto ahorow no taa kyerɛ ase denam H so bere a woredi inches ho dwuma bere a ɛkyerɛ D bere a woreyɛ adwuma wɔ metric ho no.

 

 

Dɛn ne gyinapɛn ISO thread tolerance?

Sɛ wɔde di dwuma da biara da a, ISO 956 kamfo kyerɛ sɛ wɔmfa 6H ne 6G nni dwuma.

 

 

Awie:

Sɛ ɛba adwuma biara a wɔbɛyɛ no mu a, nneɛma a ɛfata a wobɛboaboa ano no betumi ayɛ ade titiriw. Nanso, esiane sɛ nnipa dodow no ara renkɔhwehwɛ custom bolts, nuts, ne screws ma wɔn fie nnwuma nti, ɛda adi sɛ ɛho behia sɛ wotɔ mass-apam bolts, nuts, ne screws. Eyinom taa nya asaawa dodow a ɛkorɔn a ɛma wotumi gyina ano efisɛ ɛnyɛ nea ɛyɛ soronko wɔ sɛnea wɔde di dwuma anaasɛ wɔyɛ no mu.
Nanso, esiane sɛ screws a wode redi dwuma no nyinaa yɛ mass-a wɔayɛ nti, ɛnkyerɛ ankasa sɛ ɛsɛ sɛ wohwe ase wɔ bɔne-quasteners mu. Aya Fasteners yɛ ano aduru a wɔahyɛ ho bɔ wɔ ahunmu efisɛ wotumi ma wo abien no nyinaa ma wo nuts ne bolts a wuhia na ebetumi nso aboa wo ma woayɛ screw foforo a ɛwɔ tumi pɔtee, a nneɛma a ɛwɔ tolerancing levels a ɛba fam ka ho. Eyi betumi ayɛ nea ɛho hia titiriw ma saa nnwuma no wɔ baabi a pɛpɛɛpɛyɛ yɛ ade titiriw na ɛho hia ma nkurɔfo nnwuma anaa nnwuma.
Mpɛn pii no, ɛka ne adwene nyinaa bɛboa ma wɔakyerɛkyerɛ adwumayɛfo a wɔyɛ adwuma yiye no mu. Bere a ebia tolerancing a ɛboro so betumi ayɛ sɛnkyerɛnne bɔne no, wɔ nsɛm no mu dodow no ara mu no, ɛsɛ sɛ wutumi de nkɔnsɔnkɔnsɔn di dwuma esiane tolerancing mmara a ɛhwɛ ma ɛyɛ adwuma na ahobammɔ wom nti.

 

Worehwehwɛ nneɛma a wɔde kyekyere nneɛma ho?
Klik ase hɔ na kɔ Aya Fasteners’ Fastener Catalogue a ɛtrɛw, a nea ɛka ho ne nkɔnsɔnkɔnsɔn a ɛkorɔn, bolts, washers, ne nuts products.