Ukubuka: 1139 Umbhali: Isikhathi Sokushicilela Isihleli Sesayithi: 2023-12-27 Umsuka: Isayithi
Emhlabeni wokukhiqiza nobunjiniyela bemishini, ukwenza izinto zihlangane kubalulekile. Yilapho izindinganiso zentambo ziqala ukusebenza khona. Afana nemithetho yokuthi ama-spirals akwibhawodi afana kanjani nama-spirals enanini. Le mithetho ibaluleke kakhulu ngoba yenza isiqiniseko sokuthi izingxenye zibambana kahle, futhi ziyakwazi ukuphatha umsebenzi ezihloselwe ukuwenza ngaphandle kokuphulwa.
Ake siqale ngokuqonda ukuthi yiziphi izindinganiso zentambo . Kalula nje, ziyiziqondiso ezichaza ukuma, usayizi, nokubekezelela imicu esetshenziswa kumabhawudi, izikulufu, namantongomane. Zicabange njengencwadi yeresiphi yokwenza imicu ehlangana kahle. Lawa mazinga aqinisekisa ukuthi ibhawudi elivela enkampanini ethile lizongena enati elisuka kwenye, ligcine nokunemba kuzo ukungaguquguquki zonke izimboni ezihlukahlukene.
Izindinganiso zochungechunge zidlala indima ebalulekile emhlabeni wokukhiqiza nobunjiniyela bemishini . Bangamaqhawe angaculwa ekuhlanganisweni kwakho konke kusukela ezingxenyeni ze-elekthronikhi ebhodini lesekethe kuya ezinhlakeni ezinkulu zendiza. Ezimbonini ezifana izimoto , nemishini yezindiza , ngisho nemikhumbi-mkhathi , lawa mazinga aqinisekisa ukuthi yonke ibholithi yesibambiso , nesikulufu , kanye nengxenye eyimishini kufanelana ngokunemba okuphezulu namandla ekhiqiza . Lokhu kubalulekile kuphela ekudaleni ukuxhumana okuqinile kodwa futhi ekugcineni ukuqina nokuphepha hhayi kwemikhiqizo.
Manje, ake sithathe uhambo olusheshayo sehle ngomzila womlando. I- Unified Thread Standard (UTS) yaqala ukusebenza njengendlela yokwenza lula nokwenza imicu yesikulufu ibe lula e-United States naseCanada. Ngaphambi kwe-UTS, kwakunezindinganiso eziningi zentambo, okwakudida kakhulu. I-UTS ilethe wonke umuntu ekhasini elilodwa ngezinhlobo ezimbili eziyinhloko: I-Unified National Coarse (UNC) kanye ne-Unified National Fine (UNF).
l Imicu ye-UNC : Yaziwa ngephimbo layo elimahhadla , le micu mihle ezinhlelweni ezijwayelekile. Kulula ukuwenza nokubamba, okuwenza abe yinketho edumile ezimbonini ezidinga izixazululo eziqinile ezingabekezelela ingcindezi yokushaqeka kanye nesivinini sokuzungeza..
l Imicu ye-UNF Lezi zinezwi elihle , elinikeza amandla aphezulu nokunemba . : Avame ukusetshenziswa ezinhlelweni ezifana ne -aerospace namathuluzi anembayo , lapho imilimitha ngayinye ibala khona.
Kokubili imicu ye-UNC ne-UNF iwela ngaphansi kwe- Uniified Screw Thread Series , efana nomndeni omkhulu wezikulufu eziklanyelwe ukusebenza ngokuvumelana.
Ukuze ubone ngeso lengqondo, cabanga ngeshadi le-Screw Thread . Leli shadi libala bonke osayizi nezinhlobo zochungechunge ngaphansi kwe-UTS, okuhlanganisa imicu yephimbo eqinile Ehlanganisiwe kanye nemicu yephimbo emihle Ehlanganisiwe . Kuyithuluzi lokuya konjiniyela nabakhiqizi ukwenza ukukhetha kochungechunge olulungile lwezinhlelo zabo ezithile zokusebenza .
Ngokwezinto ezibonakalayo, izindinganiso zochungechunge zingemuva kwezigcawu cishe kuyo yonke imikhiqizo eyimishini. Isibonelo, ezintweni zikagesi , ukunemba kwezintambo ze-UNF kuqinisekisa ukuqondana okunembile kwezingxenye. Kuzinhlelo zokusebenza ezinkulu, njengasezimotweni noma ezindizeni , imicu ye-UNC inikela ekwakhiweni kwezingxenye ze-chassis eziqinile nezingxenye zenjini..
Ukuqonda izindinganiso zochungechunge, ikakhulukazi umehluko phakathi kwe -UNF ne -UNC , kubalulekile. Akukhona nje ukwenza izingcezu ezimbili zilingane; imayelana nokuqinisekisa nokuphepha , ukwethembeka , nokusebenza kahle . Kungakhathaliseki ukuthi kuwumsebenzi wokunemba okuphezulu ku- aerospace noma umhlangano ovamile wobunjiniyela bemishini , uhlobo lochungechunge olulungile - kungaba i-UNF noma i-UNC - lungenza umehluko ekusebenzeni nasekuphileni isikhathi eside komkhiqizo. Kafushane, amazinga ochungechunge afana ne -UNF ne -UNC ngaphansi Kwezinga Elihlanganisiwe Lochungechunge abalulekile ekudaleni imikhiqizo ethembekile nephephile. Baqinisekisa ukuthi yonke into kusukela kusikulufu esincane kunazo iphezu komsebenzi inikeza , ukunemba zonke ebhodini lesifunda kuya kubhawodi enkulukazi endizeni okudingekayo , , kwamandla kanye nokumelana okudingekayo ezinhlelweni zokusebenza ezihlukahlukene.
I-Unified Thread Standard (UTS) ifana nencwadi yomthetho yemicu esetshenziswa eNyakatho Melika. Yilokho okwenza isiqiniseko sokuthi isikulufu esivela endaweni eyodwa singena enathini elisuka kwenye. Leli zinga libaluleke kakhulu ezimbonini ezifana ne -aerospace , automotive , ngisho nasemikhiqizweni kagesi.
I-UTS inezingxenye ezintathu eziyinhloko:
1. Ifomu Lochungechunge : Lesi isimo somucu. Kucabange njengephethini kubhawodi noma isikulufu. Ibalulekile ngoba inquma ukuthi izingxenye ezimbili zizofanelana kanjani.
2. Uchungechunge : Lokhu kumayelana nezinhlobo ezahlukene zezintambo. Ku-UTS, kunochungechunge olubili oluyinhloko - I-Unified National Coarse (UNC) ne-Unified National Fine (UNF). Uchungechunge olumahhadla (UNC) lunemicu embalwa iyintshi ngayinye, kuyilapho uchungechunge oluhle (UNF) lunokuningi. Lo mehluko uthinta ukuthi uxhumo luqine kangakanani futhi luqine kangakanani.
3. Izigaba ze-Fit : Lokhu kufana nezinga lokuthontelana phakathi kwemicu. Kumayelana nokuthi ziqine kangakanani noma zixege kangakanani. Kunamakilasi amaningana, ngalinye lilungele izinhlelo zokusebenza ezahlukene.
ENyakatho Melika, i-UTS ikhona yonke indawo. Nansi indlela esetshenziswa ngayo:
l Indlela Yokukhiqiza : Izinkampani zisebenzisa i-UTS ukwenza zonke izinhlobo zezinto. Kusukela kumabhodi amancane wesifunda kuya ezingxenyeni ezinkulu zenjini yendiza.
l Amathuluzi Anembile : Kumagajethi nakumadivayisi adinga ukunemba okuphezulu kakhulu , njengasendaweni yasemkhathini noma impahla yendiza , i-UTS isiza ekwenzeni izingxenye ezilingana kahle.
l Ubunjiniyela Bezimoto Nemishini : Izimoto, amaloli, ngisho nemishini esezimbonini idinga izingxenye ezilingana kahle. I-UTS yenza lokhu kwenzeke, noma ngabe izingxenye zenjini , ze-chassis , noma izakhiwo zomzimba.
l Izingxenye zikagesi : Kumagajethi amancane, i-UTS idlala indima enkulu nayo. Iqinisekisa ukuthi wonke amabhawodi nezikulufu ezingxenyeni - ze elekthronikhi kuhlangana kahle.
Zicabange wakha irobhothi. Udinga amabhawodi nezikulufu ezizoyibamba iqine. Ungakhetha lwe-UNC noma lwe-UNF uchungechunge olulungile ngokusekelwe kulokho irobhothi elizokwenza. Ingabe izodinga ukumelana nengcindezi yokushaqeka eminingi ? Noma ingabe idinga ukunemba ngempela? I-UTS iyakuqondisa ekwenzeni lezi zinqumo.
I-UTS ifana nolimi olukhulunywa yibo bonke abakhiqizi eNyakatho Melika. Imayelana nokwenza isiqiniseko sokuthi yonke into ihlangana kahle, kungakhathaliseki ukuthi isikulufu esincane ku-smartphone noma ibhawudi elikhulu endizeni. Leli zinga ligcina izinto ziphephile, ziqinile, futhi zisebenza kahle.
Ake singene ku- UNF Threads , eyaziwa nge -Unified Fine Pitch yazo . Lezi zintambo zingabaculi abanemininingwane bomhlaba wochungechunge. Anemicu eminingi iyintshi ngayinye kunemicu ye-UNC , okusho ukuthi mahle futhi asondelene kakhulu. Lo mklamo omuhle awuwona nje owombukiso; konke kumayelana nokunemba.
Uchungechunge lwe UNF luyinketho yokukhetha ezimeni lapho ukunemba okuphezulu namandla - kubalulekile. Nakhu lapho zikhanya khona:
l I-Aerospace : Ezindizeni nasemkhathini, zonke izingxenye ezincane zibalulekile. Imicu ye-UNF isetshenziswa lapha ukunemba kwayo.
l Amathuluzi Anembile : Cabanga ngamadivayisi akulebhu noma amathuluzi ezokwelapha. Imicu ye-UNF isiza la magajethi ukuthi anembe futhi athembeke.
l Ukukhiqiza Izimoto : Ezimotweni, ikakhulukazi ezingxenyeni zenjini nezingxenye ze-elekthronikhi , imicu ye-UNF ihlinzeka ngokulingana okunembile okudingekayo.
l Izisetshenziswa zikagesi : Ngisho nasemabhodini amancane esekethe , imicu ye-UNF ibalulekile ekugcineni yonke into ixhumeke ngokuqinile.
Uma sikhuluma ngobukhulu bochungechunge lwe-UNF, sibheka Ishadi Lochungechunge LweScrew . Leli shadi libala bonke osayizi - ububanzi, ukuphakama, nobude. Ububanzi bemicu ye-UNF bungasukela kokuncane kakhulu kuye kokukhulu impela, kodwa ukhiye ukuphimisa kahle - imicu eyengeziwe kuyintshi ngayinye yesikulufu.
Emhlabeni wokukhiqiza okuphezulu, imicu ye-UNF ifana ne-VIP. Banikeza:
l Amandla Aphakeme : Ngenxa yephimbo labo elihle, bangakwazi ukubhekana nomthwalo owengeziwe nokucindezeleka.
l Ukuxhumana Okuqinile : Imicu eminingi isho ukubamba okuqinile. Lokhu kubalulekile ezingxenyeni okungafanele zixege, ikakhulukazi ngaphansi kokudlidliza.
l Ukunemba : Ngochungechunge oluningi, mancane amathuba okunyakaza noma ukungahambi kahle. Lokhu kubalulekile kumathuluzi anembayo kanye nemishini ye-aerospace.
Zicabange uhlanganisa indiza engenantambo yobuchwepheshe obuphezulu. Zonke izingxenye zidinga ukulingana kahle. Imicu ye-UNF ikusiza ukuthi ugoqe ingxenye ngayinye ngokunemba, uqinisekisa ukuthi i-drone izinzile futhi ithembekile.
Imicu ye-UNF ANSI B1.1
| Ububanzi Obukhulu (ku) | Imicu ngeyintshi ngayinye (tpi) | Ububanzi Obukhulu (ku) | Ububanzi Obukhulu (mm) | Usayizi Wokubhoboza Kampompi (mm) | Iphitshi (mm) |
|---|---|---|---|---|---|
| #0 - 80 | 80 | 0.060 | 1.524 | 1.25 | 0.317 |
| #1 - 72 | 72 | 0.073 | 1.854 | 1.55 | 0.353 |
| #2 - 64 | 64 | 0.086 | 2.184 | 1.90 | 0.397 |
| #3 - 56 | 56 | 0.099 | 2.515 | 2.15 | 0.453 |
| #4 - 48 | 48 | 0.112 | 2.845 | 2.40 | 0.529 |
| #5-44 | 44 | 0.125 | 3.175 | 2.70 | 0.577 |
| #6-40 | 40 | 0.138 | 3.505 | 2.95 | 0.635 |
| #8-36 | 36 | 0.164 | 4.166 | 3.50 | 0.705 |
| #10 - 32 | 32 | 0.190 | 4.826 | 4.10 | 0.794 |
| #12-28 | 28 | 0.216 | 5.486 | 4.70 | 0.907 |
| 1/4' - 28 | 28 | 0.250 | 6.350 | 5.50 | 0.907 |
| 5/16' - 24 | 24 | 0.313 | 7.938 | 6.90 | 1.058 |
| 3/8' - 24 | 24 | 0.375 | 9.525 | 8.50 | 1.058 |
| 7/16' - 20 | 20 | 0.438 | 11.112 | 9.90 | 1.270 |
| 1/2' - 20 | 20 | 0.500 | 12.700 | 11.50 | 1.270 |
| 9/16' - 18 | 18 | 0.563 | 14.288 | 12.90 | 1.411 |
| 5/8' - 18 | 18 | 0.625 | 15.875 | 14.50 | 1.411 |
| 3/4' - 16 | 16 | 0.750 | 19.050 | 17.50 | 1.587 |
| 7/8' - 14 | 14 | 0.875 | 22.225 | 20.40 | 1.814 |
| 1' - 12 | 12 | 1.000 | 25.400 | 23.25 | 2.117 |
| 1 1/8' - 12 | 12 | 1.125 | 28.575 | 26.50 | 2.117 |
| 1 1/4' - 12 | 12 | 1.250 | 31.750 | 29.50 | 2.117 |
| 1 3/8' - 12 | 12 | 1.375 | 34.925 | 32.75 | 2.117 |
| 1 1/2' - 12 | 12 | 1.500 | 38.100 | 36.00 | 2.117 |
Ukufingqa, imicu ye-UNF imayelana nemininingwane nokunemba. Bangamaqhawe angaculwa ezinhlelweni eziningi zobuchwepheshe obuphezulu nezinengcindezi ephezulu, kusukela ekujuleni kwesikhala kumkhumbi-mkhathi kuya ezingxenyeni ezibalulekile zenjini yemoto esebenza kahle kakhulu. Iphimbo labo elihle namandla aphakeme kubenza babaluleke kakhulu emhlabeni wokuhlanganisa ngokunemba kanye nokukhiqiza okuphezulu..
Imicu ye-UNC imele imicu ye- Unified National Coarse . Cabanga ngabo njengohlobo oluqinile, oluthembekile emndenini wentambo. Anemicu embalwa iyintshi ngayinye uma kuqhathaniswa nemicu ye-UNF , okusho ukuthi maholoholo. Lobu buhwaba akukona ukuhlehla; empeleni kuwukuhlanganisa okukhulu ezimweni eziningi.
Ngabe imicu ye-UNC ingena kuphi? Nakhu ukubuka okusheshayo:
l Ukwakha : Emabhilidini nasemabhulohweni, imicu ye-UNC ilungele ukubamba izinto ezisindayo ndawonye.
l Imishini Evamile : Emishinini engadingi ukunemba okuhle kakhulu, njengakwezinye izingxenye zemoto noma izinto zokusebenza ezinkulu, izintambo ze-UNC ziwenza kahle umsebenzi.
l Imikhiqizo yabathengi : Izinto esizisebenzisa nsuku zonke, njengefenisha noma izinto zikagesi zasekhaya, ngokuvamile zinezintambo ze-UNC ezizigcina zihlangene.
Imicu -UNC yaziwa ngezinto ezimbili: amandla nokubekezelelana ye .
l Amandla : Aqinile ngokwanele ukuba abambe ndawonye izakhiwo ezinkulu, yingakho uwabona emishini yokwakha kanye nemishini esindayo.
l Ukubekezelelana : Bathethelela kakhulu kunezintambo ezinhle. Lokhu kusho ukuthi angakwazi ukuphatha ukungcola, umonakalo, futhi kulula ukukulufipha nokuqaqa, okuhle kakhulu ezindaweni ezimbi.
Uma kukhulunywa ngokwenza izinto ngemicu ye-UNC, kunamaphuzu ambalwa okufanele uwaqaphele:
l Ukukhiqiza Kalula : Kulula futhi kuyashesha ukukhiqiza kunemicu emihle. Lokhu kuyinto enkulu uma wenza izinkulungwane zezikulufu noma amabhawudi.
l Ayibizi kakhulu : Ngenxa yokuthi kulula ukuzenza, ngokuvamile zibiza kancane. Lokhu kubalulekile emikhiqizweni lapho udinga khona izinsimbi eziningi kodwa ungadingi ukunemba okuhle kakhulu.
l Ukuguquguquka : Zihlukahlukene. Ungasebenzisa imicu ye-UNC emikhiqizweni eminingi, kusukela kumishini esindayo kuya ezintweni zansuku zonke.
Imicu ye-UNC ngokuya nge-ANSI B1.1
| Ububanzi Obukhulu (ku) | Imicu ngeyintshi ngayinye (tpi) | Ububanzi Obukhulu (ku) | Ububanzi Obukhulu (mm) | Usayizi Wokubhoboza Kampompi (mm) | Iphithi (mm) |
|---|---|---|---|---|---|
| #1 - 64 | 64 | 0.073 | 1.854 | 1.50 | 0.397 |
| #2 - 56 | 56 | 0.086 | 2.184 | 1.80 | 0.453 |
| #3-48 | 48 | 0.099 | 2.515 | 2.10 | 0.529 |
| #4 - 40 | 40 | 0.112 | 2.845 | 2.35 | 0.635 |
| #5-40 | 40 | 0.125 | 3.175 | 2.65 | 0.635 |
| #6-32 | 32 | 0.138 | 3.505 | 2.85 | 0.794 |
| #8-32 | 32 | 0.164 | 4.166 | 3.50 | 0.794 |
| #10 - 24 | 24 | 0.190 | 4.826 | 4.00 | 1.058 |
| #12-24 | 24 | 0.216 | 5.486 | 4.65 | 1.058 |
| 1/4' - 20 | 20 | 0.250 | 6.350 | 5.35 | 1.270 |
| 5/16' - 18 | 18 | 0.313 | 7.938 | 6.80 | 1.411 |
| 3/8' - 16 | 16 | 0.375 | 9.525 | 8.25 | 1.587 |
| 7/16' - 14 | 14 | 0.438 | 11.112 | 9.65 | 1.814 |
| 1/2' - 13 | 13 | 0.500 | 12.700 | 11.15 | 1.954 |
| 9/16' - 12 | 12 | 0.563 | 14.288 | 12.60 | 2.117 |
| 5/8' - 11 | 11 | 0.625 | 15.875 | 14.05 | 2.309 |
| 3/4' - 10 | 10 | 0.750 | 19.050 | 17.00 | 2.540 |
| 7/8' - 9 | 9 | 0.875 | 22.225 | 20.00 | 2.822 |
| 1'-8 | 8 | 1.000 | 25.400 | 22.85 | 3.175 |
| 1 1/8' - 7 | 7 | 1.125 | 28.575 | 25.65 | 3.628 |
| 1 1/4' - 7 | 7 | 1.250 | 31.750 | 28.85 | 3.628 |
| 1 3/8' - 6 | 6 | 1.375 | 34.925 | 31.55 | 4.233 |
Imicu ye-UNC ifana namahhashi okusebenza athembekile omhlaba wentambo. Bangase bangabi nayo imininingwane emihle yezintambo ze-UNF, kodwa bayakwenza ngamandla abo, ukubekezelela, kanye nokuguquguquka. Kusukela ekugcineni izakhiwo eziphakeme zimile kuya ekuqinisekiseni ukuthi itafula lakho lasekhishini liqinile, imicu ye-UNC iyingxenye ebalulekile yemikhiqizo yansuku zonke kanye nezakhiwo ezinkulu ngokufanayo.
Uma sibheka imicu ye -UNF (Unified National Fine) kanye ne-UNC (Unified National Coarse) , izinto eziphambili ezigqamayo yiphimbo namandla ..
l Iphimbo : Imicu ye-UNF inokuphakama kakhudlwana, okusho ukuthi imicu eminingi iyintshi ngayinye. Imicu ye-UNC maholoholo nemicu embalwa iyintshi ngayinye.
l Amandla : Iphimbo elicolekileyo lemicu ye-UNF ibanika amandla engeziwe ekucindezelekeni. Bangakwazi ukuphatha amandla amaningi ngaphandle kokugqashuka uma kuqhathaniswa nemicu ye-UNC.
Ukukhetha phakathi kochungechunge lwe-UNF ne-UNC kuncike ekutheni luzosetshenziswa kuphi.
l Imicu ye-UNF : Ilungele izinhlelo zokusebenza ezidinga ukunemba okuphezulu namandla, njengase- aerospace noma amathuluzi anembayo.
l Imicu ye-UNC : Ifanele kangcono ukwakhiwa okuvamile kanye nemikhiqizo lapho ukunemba kungabalulekile kangako, kodwa ukuqina nokusebenziseka kalula kubalulekile.
Ukuzikhiya kuyinto enkulu ezindaweni lapho ukudlidliza kungase kuxegise imicu.
l Imicu ye-UNF : Iphimbo labo elihle linikeza amandla angcono okuzivala, okuwenza afanelekele izindawo ezidlidliza kakhulu njengendiza noma imishini.
l Imicu ye-UNC : Nakuba ikwazi ukuzikhiya, ukuphakama kwayo okuqinile kuyenza ingasebenzi kahle kancane kulokhu uma iqhathaniswa nemicu ye-UNF.
Ukubeka uphawu namandla okuqina kubalulekile ekunqumeni uhlobo olulungile lwentambo.
l Imicu ye-UNF : Nikeza amandla angcono okubamba ngenxa yezwi lawo elihle, okuvumela ukuxhumana okuqinile nokuqinile.
l Imicu ye-UNC : Iphimbo layo elimaholoholo liyenza ingalungeli kakhulu izidingo zamandla aphezulu, kodwa isasebenza kahle ezinhlelweni eziningi.
Ukuminyana kwemicu iyintshi ngayinye kuyisici esibalulekile ekusebenzeni.
l Imicu ye-UNF : Ukuminyana okuphezulu kwentambo kusho intambo ecolekileyo, eholela ekulinganeni okuqinile nokunembe kakhudlwana.
l Imicu ye-UNC : Ukuminyana kwentambo okuphansi ngentambo eqinile, okulula ukuyiphatha nokuyikhiqiza, ikakhulukazi ngamanani amakhulu.
Cabanga ngeshadi le- Screw Thread . Leli shadi lingabonisa ukuthi uchungechunge lwe-UNF lupakishwe kanjani eduze nenani eliphakeme lemicu iyintshi ngayinye, kuyilapho imicu ye-UNC inezikhala ezibanzi phakathi kwemicu.
ukukhetha phakathi kochungechunge lwe-UNF ne-UNC kuncike ezidingweni ezithile zohlelo lokusebenza. Imicu ye-UNF, nephimbo layo elihle, inikeza amandla aphakeme nokunemba, ilungele izindawo zobuchwepheshe obuphezulu nezinengcindezi ephezulu. Izintambo ze-UNC, ngakolunye uhlangothi, zinikeza ukusetshenziswa kalula nokukhiqiza, okuzenza zifanele ukwakhiwa okujwayelekile kanye nemikhiqizo lapho ukunemba okuphezulu kungabalulekile kangako. Zombili lezi zinhlobo zinezinzuzo zazo ezihlukile, okuzenza zibaluleke kakhulu ekusetshenzisweni kwazo.
Izinto zokuqala kuqala, ukukala imicu ngokunembile, udinga amathuluzi afanele. Okuvame kakhulu yilezi:
l Ama-Calipers : Lawa mathuluzi akala ububanzi bangaphandle bomucu. Bafana nababusi abawubukhazikhazi abangakutshela ukuthi intambo inkulu kangakanani.
l Ama-thread Gauges : Lezi zifana nezifanekiso zezintambo. Ufanisa intambo ngokumelene negeji ukuze uthole usayizi wayo nephimbo.
Ukubona ukuthi uchungechunge luyi-UNF noma i-UNC kuqondile ngalezi zinyathelo:
1. Linganisa Ububanzi : Sebenzisa ama-caliper ukukala ububanzi bangaphandle bomucu. Lokhu kukutshela ukuthi ububanzi bayo bungakanani.
2. Bala Imicu : Bala inani lemicu ngobude obuyiyintshi elilodwa. Yilapho owubona khona umehluko - imicu ye-UNF izoba nemicu eminingi ngentshi ngayinye kune-UNC.
3. Sebenzisa i-Thread Gauge : Qondanisa intambo negeji yentambo. Igeji izoqinisekisa ukuphakama nokuthi ingabe i-UNF (inhle) noma i-UNC (imaholoholo).
4. Hlola Ishadi : Ungabhekisela ku- Screw Thread Chart ukuze uthole ukuqhathanisa okusheshayo. Leli shadi libonisa kokubili imicu ye-UNF ne-UNC ngephimbo nobubanzi bayo obuhlukahlukene.
Ukuthola izilinganiso ngendlela efanele kubalulekile. Nawa amanye amathiphu:
l Hlanza Imicu : Ngaphambi kokulinganisa, qiniseka ukuthi imicu ihlanzekile. Ukungcola kungamosha izilinganiso zakho.
l Linganisa Izikhathi Eziningana : Ukuze ugweme amaphutha, kala izikhathi ezimbalwa futhi uthathe isilinganiso.
l Sebenzisa Amathuluzi Ekhwalithi Enhle : Tshala imali kuma-caliper namageji ekhwalithi ephezulu ukuze uthole izilinganiso ezinembe kakhudlwana.
l Hlala Uqinile : Lapho ukala, bamba amathuluzi akho anganyakazi ukuze ugweme ukushelela futhi uthole ukufundwa okungalungile.
Uma usebenza kuphrojekthi, ukwazi ukuthi usebenzise imicu ye-UNF noma ye-UNC kungenza noma kuwuphule umsebenzi wakho. Ukulinganisa nokukhomba lezi zintambo ngendlela efanele kuqinisekisa ukuthi izibophelelo zakho zilingana kahle, kungakhathaliseki ukuthi wakha ifenisha, ulungisa imoto, noma uhlanganisa izingxenye ze-aerospace. Izilinganiso ezinhle ziholela ekuxhumekeni okuqinile, okuzinzile, nokuphephile kunoma yini oyidalayo noma oyilungisayo.
Imicu ye-UNF (Unified National Fine) ifana nochwepheshe bokunemba emhlabeni wentambo. Nakhu lapho zigqama khona ngempela:
l I -Aerospace and Aviation : Ezindizeni nasemkhathini, yonke ingxenye encane kufanele iphelele. Imicu ye-UNF isetshenziswa ezingxenyeni zenjini nezakhiwo zomzimba ngokunemba kwazo okuphezulu.
l Ukukhiqiza Kwezimoto : Ezimotweni, ikakhulukazi ezingxenyeni ezintekenteke njengezinto zikagesi , imicu ye-UNF ihlinzeka ngokulingana okunembile okudingekayo.
l Izisetshenziswa zikagesi : Kumagajethi namadivayisi, lapho imilimitha ngayinye ibala khona, imicu ye-UNF ibalulekile ekunembeni nasekuxhumekeni okuqinile ..
Uma kuziwa ekwenzeni izinsimbi eziningi ngokushesha nangempumelelo, imicu ye-UNC (Unified National Coarse) iyindlela yokuya kuyo:
l Ukwakha : Emabhilidini nengqalasizinda, izintambo -UNC zisetshenziswa kumabhawodi nezikulufu ukuze ze zibe namandla futhi zisebenziseke kalula.
l Imishini Evamile : Emishinini edinga izixhumi eziqinile nezithembekile, izintambo ze-UNC zinikeza ibhalansi ephelele yamandla kanye nokubamba kalula.
Uhlobo ngalunye lwentambo lunamandla amakhulu ezimboni ezahlukene:
l Imicu ye-UNF : Kumathuluzi anembayo kanye ne -aerospace , lapho yonke imininingwane ibalulekile, imicu ye-UNF ibalulekile ukuze ibe namandla aphezulu kanye nokunemba.
l Imicu ye-UNC : Ezimbonini ezifana nemishini yokwakha nemishini esindayo, lapho izixhumi kumele zibe nzima futhi zithembeke, izintambo ze-UNC ziyizintandokazi.
Ukusebenza ngochungechunge akulula ngaso sonke isikhathi. Nazi izinselelo ezithile:
l Ukunemba Emashini : Ukwenza imicu ye-UNF kudinga ukunemba okuphezulu kumashini we-CNC . Iphutha elincane lingenza umehluko omkhulu.
l Ukuphatha kanye Nokuhlanganisa : Imicu ye-UNC, njengoba iqinile, kulula ukuyiphatha kodwa kufanele ifakwe ngomshini ngokucophelela ukuze kuqinisekiswe ukuthi ingena kahle ekusetshenzisweni okuqinile.
l Ukukhethwa Kwezinto Ezibalulekile : Ukukhethwa kwempahla yakho kokubili imicu ye-UNF ne-UNC kubalulekile. Kuthinta entambo kwamandla , ukuqina , nokumelana nengcindezi.
Kungakhathaliseki ukuthi izinhlelo zokusebenza ezidingeka ngokunemba zezintambo ze-UNF ku- aerospace nezingxenye ze-elekthronikhi noma ukuqina kochungechunge lwe-UNC ekwakhiweni nasemishinini, zombili zidlala indima ebalulekile emikhakheni yazo. Ukuqonda ukusetshenziswa kwazo okukhethekile nezinselele kusiza ekukhetheni intambo efanele kuhlelo lokusebenza ngalunye oluhlukile, ukuqinisekisa ukusebenza kahle nokuphepha komkhiqizo wokugcina.
Ukukhetha uhlobo lochungechunge olulungile - i-UNC noma i-UNF - kubalulekile. Nakhu ongacabanga ngakho:
1. Izidingo Zohlelo Lokusebenza : Ingabe usebenza kokuthile okudinga ukunemba okuphezulu, njengengxenye yendiza ? Hamba ku-UNF. Ngokwakhiwa okuvamile, i-UNC iwukubheja kwakho okuhle kakhulu.
2. Izidingo Zamandla : Izintambo ze-UNF zinikeza amandla engeziwe ngenxa yokuphakama kwazo okuhle, okuzenza zilungele izinhlelo zokusebenza ezinengcindezi ephezulu.
3. Imvelo Yomhlangano : Uma indawo ezungezile ithanda ukungcola noma ukulimala, imicu ye-UNC ithethelela kakhulu.
4. Amakhono Okukhiqiza : Ingabe unawo okokusebenza kokucupha okunembayo kwe-UNF? Uma kungenjalo, i-UNC ingase isebenziseke kakhulu.
Imboni ngayinye inezintandokazi zayo:
l I -Aerospace : I-UNF ivamise ukusetshenziselwa ukunemba okuphezulu namandla kwayo .
l Ukwakha : I-UNC ikhethwa ngenxa yokuqina kwayo nokusebenziseka kalula.
l Izimoto : Ingxube yakho kokubili, kuye ngengxenye ekhiqizwayo.
Ukuthola ukumatanisa kahle kubalulekile:
l Hlola Ukuhambisana : Njalo qinisekisa ukuthi uhlobo lwentambo yebhawodi lufana nenathi. Ibhawodi ye-UNF idinga inadi le-UNF.
l Bheka Ishadi Lochungechunge LweScrew : Leli shadi lisiza ekufaniseni imicu ngokunembile, libonise kwephimbo nentambo ukuphakama .
l Cabangela Okubalulekile : Impahla yebhawodi namantongomane kufanele ihambisane nokuxhumeka okuqinile.
Ake sithi uhlanganisa ucezu lwesisetshenziswa sikagesi. Ungahle ukhethe imicu ye-UNF elihle nokunemba yephimbo lakho . Ngakolunye uhlangothi, uma wakha ishelufu lezincwadi, imicu ye-UNC izofaneleka kakhudlwana amandla abo kanye nokubamba kalula.
Ukukhetha phakathi kochungechunge lwe-UNC ne-UNF kwehla ekuqondeni izidingo ezithile zephrojekthi yakho, izindinganiso zomkhakha, kanye nokuqinisekisa ukuhambisana kwazo zonke izingxenye ezihilelekile. Noma ngabe okokusebenza okunembayo okuthambile noma izinto zokwakha eziqinile, uhlobo olulungile lwentambo luqinisekisa okuzinza , amandla , kanye nempumelelo iyonke yokuhlanganiswa kwakho.
Njengoba siphetha, masikhumbule izindima ezibalulekile ze-UNF ne-UNC ezimbonini ezihlukahlukene. Lezi zintambo, njengoba zingase zibonakale zincane, zibalulekile ekuqinisekiseni ukuphepha, ukunemba, nokusebenza kwezinhlelo zokusebenza ezingenakubalwa.
l Imicu ye-UNF : Iphimbo layo elihle lizenza zilungele ukunemba okuphezulu namandla adingekayo njengamathuluzi emkhathini , asebenza , kanye nokukhiqizwa kwezimoto..
l Imicu ye-UNC : Yaziwa ngokuphakama kwayo, le micu ibalulekile ekwakhiweni, emishinini esindayo, nemikhiqizo yansuku zonke ukuze kube lula ukuyisebenzisa nokuqina.
Ukukhetha intambo efanele - i-UNF noma i-UNC - yehlela ku:
l Ukuqonda Isicelo : Izidingo ezithile zephrojekthi yakho, noma ngabe ukunemba okuphezulu noma ukuqina, zizoqondisa ukukhetha kwakho.
l Amazinga Omkhakha : Ukuqaphela izivumelwano zemboni kusiza ekwenzeni ukukhetha unolwazi.
l Ukuhambelana : Ukuqinisekisa ukuthi izintambo, amabhawodi, namantongomane owakhethayo ayahambisana kubalulekile ukuze kuhlanganiswe ngempumelelo.
Imicu ingaba mincane, kodwa umthelela wayo mkhulu. Kusukela endizeni endiza ngaphezu kwethu kuya ezintweni zikagesi esizisebenzisa nsuku zonke, imicu ye-UNF ne-UNC ibamba umhlaba wethu ndawonye. Ngakho-ke ngokuzayo uma usebenza kuphrojekthi, cabanga ngalawa maqhawe amancane. Ukukhetha kwakho phakathi kwe-UNF ne-UNC kungenza umehluko emandleni, ukunemba, nokuphila isikhathi eside kwendalo yakho.
Q: Uyini umehluko phakathi kwe-UNF ne-UNC?
A: Imicu ye-UNF ingcono; Imicu ye-UNC maholoholo. I-UNF inochungechunge oluningi iyintshi ngayinye. I-UNC ivame ukusetshenziswa kakhulu.
Q: Kufanele ngisebenzise nini imicu ye-UNF phezu kwemicu ye-UNC?
A: Sebenzisa i-UNF ukuze uthole ukungezwani okungcono nokulungiswa okuhle. I-UNF iyakhethwa ezinhlelweni ezidinga ukunemba okuphezulu.
Q: Ngiyikala kanjani iphimbo lochungechunge lwemicu ye-UNF ne-UNC?
A: Sebenzisa igeji yokukala intambo ukuze ubale imicu iyintshi ngayinye. Linganisa ibanga ukusuka phezulu ukuya phezulu phakathi kwemicu. Qhathanisa nezindinganiso ezaziwayo.
Umbuzo: Ingabe imicu ye-UNF ne-UNC iyashintshana?
A: Cha, banemicu eyahlukene. Ukushintshana kungaholela ekulimaleni. Hlala uqondanisa uhlobo lochungechunge olulungile.
Q: Yimaphi amathuluzi engiwadingayo ukuze ngisebenze nezintambo ze-UNF ne-UNC?
IMP: Uzodinga ompompi bese uyafa, igeji yentambo, nama-wrenches. Qinisekisa ukuthi amathuluzi afana nohlobo lochungechunge. Ukuthambisa kungase kudingeke futhi.
