Muɲu hakɛ ni tiɲɛni sariyaw bɛ tugu mun na bololafɛnw dilanni na minnu tɛ sɔgɔ?

Sɛgɛsɛgɛli so kɔnɔ, masin tigitigi dɔ ka izini dɔ la Zhejiang, jogoɲumanya sɛgɛsɛgɛlikɛla tun bɛ baara kɛ ni saba{0}}sumanikɛlan ye walasa ka aperture tolerance sɔrɔ ka Bololabaarakɛlaw minnu bɛ kɛ ni nɛgɛ ye .ani a y’a sɔrɔ ko fɛnw kulu dɔ ka fili radiyali tɛmɛna 0,05mm kan, o kɛra sababu ye ka fɛnw kulu bɛɛ ka baara kɛ kokura. Nin ko in bɛ koɲɛba dɔ jira: Tolerance grade ani precision standard of inox handwheels b’u ka ladamuni n’u ka dannaya jira minɛnw kɔnɔ. Nin barokun in bɛna bololabaarakɛlaw ka "kode tigitigi" sɛgɛsɛgɛ ka bɔ hakilina jɔnjɔnw hakɛw la, taamasiyɛn jɔnjɔnw, ko kɛlenw danfara, fɛn dilanni taabolo ani sɛgɛsɛgɛli fɛɛrɛw, walasa ka tɔnw ni baarakɛlaw dɛmɛ u kana faratiw sɔrɔ minnu bɛ sɔrɔ sariyaw fɛ minnu tɛ jɛya.

Kɔnɔkow .
1. Muɲuli ni tiɲɛni: Bololabaara jiralan jɔnjɔnw sɛgɛsɛgɛli .
2. Dimension tolerance: paramɛtɛrɛ jɔnjɔnw minnu bɛ ladamuni dantigɛ .
3. Jateminɛ muɲuni : mɔgɔfagalanw yebaliw minnu bɛ nɔ bila baarakɛcogo ɲuman na .
4. Surface Roughness: Danfara sariyaw ka bɔ izini na ka se furakɛli hakɛ ma .
5. Tiɲɛni wajibiyalenw sumalen don baarakɛcogo suguya wɛrɛw la .
6. Fɛn dilanni taabolo bɛ se ka nɔ min bila muɲuli la: casting vs forging vs cutting .
7. Kɔrɔbɔli fɛɛrɛw ni baarakɛminɛnw: O tiɲɛni bɛ sariyaw dafa cogo di?
8. Sugandili gafe: Aw bɛ muɲuli hakɛ bɛnnen sugandi ka kɛɲɛ ni baarakɛcogo ye .

1. Muɲu ni tiɲɛni: Bololabaara jiralan jɔnjɔnw sɛgɛsɛgɛli .
Bololabaarakɛminɛnw muɲuni n’u tiɲɛni ye "dimensional accuracy" ni "surface quality" kɔlɔsili fila ye u jɔyɔrɔba la:
Tolerance (Muɲuli): Dimension (janya) caman ɲɔgɔnna bɛ se ka kɛ, i n’a fɔ dingɛ cɛmancɛ φ50mm±0.02mm;
Tiɲɛni : o la, a hakɛ tiɲɛni, a cogoya tiɲɛni (i n’a fɔ lamini), jɔyɔrɔ tiɲɛni (i n’a fɔ coaxialité).
Core Standard System:
China National Standard: GB/T 1800.1 (Dimensional Tolerance), GB/T 1184 (cogo ni jɔyɔrɔ muɲuli);
Dugukolo kan sariya: ISO 2768 (Muɲuli bɛɛ lajɛlen), ISO 1101 (Muɲuli jateminɛnan);
Industriw ka ɲɛfɔliw: JB/T 7279 (Fɛɛrɛbɔcogo caman bɛ bololafɛnw na) masinko la, YY/T 0918 (Standards for Precision instrument components) furakɛli baarakɛlaw ye.

2. Dimension tolerance: paramɛtɛrɛ jɔnjɔnw minnu bɛ ladamuni dantigɛ .
1. Tolerance grade de main dimensions .

Kow sumacogo:
Masina baarakɛminɛn bolokɔni (industrie grade) ka aperture tolerance bɛ tɛmɛ muɲuli kan ni 0,08mm ye, o bɛ na ni a bɛ se ka lafiya ni a jiribolo ye ani 0,5mm jiginni jiginni baarakɛtuma na
Opereli mikroskɔpu bolokɔni (furakɛli hakɛ) ka aperture tolerance bɛ kɔlɔsi ±0,01mm na, o bɛ a jira ko ladilanni bɛ se ka kɛ 0,01 deg ye .

2. Sugandili min bɛ kɛ ka ɲɛsin a ka muɲuli ma .
Clearance Fit: A bɛ bɛn bolokɔni ni jiribolo cɛ (i n’a fɔ H7/G6), izini-Baarakɛyɔrɔ 0,02-0.05mm, furakɛli-kalanso 0,005-0,01mm;
Interference fit: H7/S6 bɛ kɛ cogoya kɛrɛnkɛrɛnnenw na (i n’a fɔ sanfɛ-Semperature Environments), ni muɲuli hakɛ ye -0,03 fo -0,01mm ye walasa ka lafiya sɔrɔ.

3. Siginiden ni jɔyɔrɔ muɲuni: fagabaga yebali min bɛ nɔ bila baarakɛcogo la .
1. Sigida muɲuli .
Lamini : Industrie HandWheel ka dɔgɔn walima a bɛ bɛn 0,1mm ma (a hakɛ 200mm), furakɛli hakɛ min ka dɔgɔn walima min bɛ bɛn 0,02mm ma, minɛn min bɛ kɛ ka ɲɛ, o hakɛ ka dɔgɔn walima a bɛ bɛn 0,005mm ma;
CASE: Valve bolokɔni lamini bɛ tɛmɛ 0,2mm kan, o bɛ na ni 15% jiginni ye baarakɛ girinya la, o bɛ nɔ bila valve dabɔli ni a dadon tiɲɛni na.
Flanan : Bololabaarakɛlaw ka so sanfɛla flakɛli, izini hakɛ min ka dɔgɔn walima min bɛ bɛn 0,15mm ma, furakɛli hakɛ min ka dɔgɔn walima min bɛ bɛn 0,05mm ma, a dɔnni fɛɛrɛ: Knife edge fit detection.

2. Jɛkulu ka muɲuli .
Coaxiality : coaxialité aperture et la circle extérieur, industriel grade ka dɔgɔn walima ka bɛn 0,1mm ma, furakɛli hakɛ min ka dɔgɔn walima min bɛ bɛn 0,03mm ma, a ka ca ni 0,01mm ye walima a bɛ bɛn 0,01mm ma
Sumani lakika : Ni coaxialité tɛmɛna 0,05mm kan, radial runout bɛ bonya ni 0,08mm ye ni bolokɔni bɛ wuli, o bɛ nɔ bila minɛnw jɔyɔrɔ tiɲɛni na.
Simetri: Speed ​​Distribution Simetri, Industrial Grade ka dɔgɔ walima a bɛ bɛn 0,5mm ma, furakɛli hakɛ min ka dɔgɔ walima min bɛ bɛn 0,2mm ma, o kɔrɔbɔra ni saba{2}}sumanikɛlan ye min bɛ bɛn ɲɔgɔn ma.

4. Surface Roughness: Danfara sariyaw ka bɔ izini hakɛ la ka se furakɛli hakɛ ma .
1. Gɛlɛya min bɛ sɔrɔ . Scenarios différentes (RA, μM) .
Industrie grade (surface knulle): RA 3.2-6.3, Knurling Depth 0.3-0.5mm, o b’a to anti-slip friction coefficient min ka bon walima min bɛ bɛn 0,6 ma;
Furakɛcogo (mirorre polishing): RA ka dɔgɔn walima a bɛ bɛn 0,8 ma, a bɛ se ka se RA ma min ka dɔgɔn walima a bɛ bɛn 0,4 ma, o bɛ se ka kɛ sababu ye ka sterile surface (bacteriel residue) wajibiyalenw dafa .<10CFU/cm²);
Precision instrument grade (superfine polishing): RA ka dɔgɔn walima a bɛ bɛn 0,2 ma, min bɛ kɛ ka ɲɛnayeli kɛ ni bololafɛnw ye walasa ka i yɛrɛ tanga hakilijakabɔ tiɲɛni ma.

2. Ka gɛlɛya don baara kɛcogo la .
EBololabaarakɛlaw .dumuni masin dɔ ka mugu tolen bɛ a la ka da a gɛlɛya kan RA 1,6, o bɛ dɔ fara saniya gɛlɛya kan ni 30% ye;
Semikɔndukiri minɛn bolola-wulu bɛ RA ka dɔgɔn walima a bɛ bɛn 0,1 ma, wa ni seramiki bɛ se ka kɛ, a bɛ se ka 0,001mm jiginni tiɲɛni sɔrɔ.

5. ɲɔgɔndan . of precision requirements for différents scenarios .
1. Industriw ka fɛn dilanni cogoya .
Tolerance grade: IT10-IT12, min bɛnnen don masinw ka baarakɛminɛn gansanw ma, valvew, a ɲɔgɔnnaw;
KƆLƆSI ƝƐFƆLIW : Aperture tolerance ±0.1mm, rondness ka dɔgɔn walima ka bɛn 0,08mm ma, surface roughness RA 3.2;
CASE: Sintɛri masin dɔ bololabɔlan min bɛ nɛgɛso kɔnɔ, o bɛ sira di 0,2mm ma, o bɛ se ka baara kɛcogo gɛlɛnw dafa baarakɛcogo gɛlɛnw na.

2. Dɔgɔtɔrɔso minɛnw cogoya .
Tolerance grade: IT6-IT8, min bɛnnen don opereli tabali ni mikroskɔpu ladilanni ma;
KƆLƆSI ƝƐFƆLIW : Aperture tolerance ±0.02mm, coaxialité ka dɔgɔn walima ka bɛn 0,03mm ma, surface roughness RA ka dɔgɔn walima ka bɛn 0,4 ma;
Standard Basi: YY/T 0918 wajibiyalenw, mankan min bɛ kɛ ni bolokɔfɛfɛn wuli ye, o ka dɔgɔ walima a bɛ bɛn 35dB ma, ka da sanfɛ-Precision Tolerance Control kan.

3. Precision Instrument scenario .
Tolerance level: IT5-IT6, min bɛ kɛ ka ɲɛsin koordinatɛri sumanikɛminɛnw ni fotolitografi masinw ma;
Kɔnɔnatumuw : Aperture tolerance ±0.01mm, flatness ka dɔgɔn walima ka bɛn 0,01mm ma, gɛlɛya ra ka dɔgɔn walima ka bɛn 0,2 ma;
Kɔlɔsili wajibiyalenw : 10% batch kelen-kelen bɛɛ bɛ sɛgɛsɛgɛ ka dafa-hakɛ sɛgɛsɛgɛli, ani hakɛ min tɛ se ka kɛ, o ka dɔgɔ walima a bɛ bɛn 0,1% ma.

6. Fɛn dilanni taabolo bɛ se ka nɔ min bila muɲuli la: casting vs forging vs cutting .
1. casting process (a bɛnnen don sigida gɛlɛnw ma) .
Muɲu hakɛ : IT12-IT14, Aperture Tolerance ±0.3mm, Surface Roughness RA 12.5;
Application scenario: large valve handwheel (diameter>300mm), hakɛ dɔw bɛ se ka kɛ;
Nafaw : cɛncɛn dingɛw ni porow bɛ se ka kɛ, o bɛ na ni lamini fili ye min bɛ tɛmɛ 0,2mm kan.

2. Forging process (a ka fisa kosɛbɛ) .
Muɲu hakɛ : IT8-IT10, Aperture Tolerance ±0.1mm, Surface Roughness RA 6.3;
Nafaw : Kɔnɔna sigicogo dense, 50% fanga ni jɔyɔrɔ muɲuni kunbɛnni seko barika ka bon ka tɛmɛ casting kan;
CASE: Mobili moule bololabɔlen dɔ bɛ Forging processus ta, ani coaxiality error bɛ dɔgɔya ka bɔ 0,15mm na casting la ka se 0,05mm ma.

3. Tigɛ baarakɛcogo (nivo précision ka kan) .
Muɲu hakɛ : IT5-IT7, aperture tolerance ±0.02mm, surface roughness ra 1.6;
Taabolow ɲɛfɔli: duuru{0}}Axis Machining Center bɛ 0,01mm hakɛ tiɲɛni sɔrɔ, min bɛnnen don furakɛli ni semikɔndukiri bololanɛgɛw ma;
Musow ka musaka: 30% sɔngɔ ka bon ka tɛmɛ casting kan, nka a nafa hakɛ bɛ dɔgɔya ka bɔ 5% na ka se 0,5% ma.

7. Kɔrɔbɔli fɛɛrɛw ni baarakɛminɛnw: Aw bɛ se ka a sɛgɛsɛgɛ cogo di ko tiɲɛni bɛ bɛn sariya ma?
1. Dimension tolerance detection .
Jɛnkulu ka sɔrɔ: vernier calice (tiɲɛni 0,02mm), mikromɛtiri (tiɲɛni 0,001mm);
Precision detection: coordinate measure machine (accuracy 0.001mm), i n’a fɔ hexagon sumanikɛlan min bɛ kɛ ni izini tigitigi ye, walasa ka 0,005mm nivo filiw kunbɛn.

2. form ani . Jɛkulu ka muɲuli dɔnni .
Roundness Meter : Aw bɛ sɛrɛkili kelen wuli ani ka a suman, ka sɔrɔ ka bɔ izini na min bɛ se ka kɛ 0,1mm, furakɛli suguya 0,02mm;
gɛlɛya jateminɛnan : sɛbɛnnikɛlan suguya dɔnni, izini hakɛ RA 3,2, furakɛli suguya RA 0,4 walima a dɔgɔyalen.

3. Sɛgɛsɛgɛli kɛcogo .
Fɔlɔ sɛgɛsɛgɛli dafalen : 100% sɛgɛsɛgɛli da la, kɛnɛma cɛmancɛ, cogoya ani jɔyɔrɔ muɲuni;
Batch sampling: Ka kɛɲɛ ni GB/T 2828.1 sariya ye, AQL=1.0, aw k’a lajɛ ko batch hakɛ min ma se ka kɛ, o ka dɔgɔ ni 1% ye.

8. Sugandili gafe: Aw bɛ muɲuli hakɛ bɛnnen sugandi ka kɛɲɛ ni baarakɛcogo ye .
Sariyasen saba minnu bɛ tali kɛ baarakɛcogo la .
Load Type: Loavy Load, sugandi ka casting (tolerance IT12), light load, precision, sugandi tigɛ (tolerance IT6);
Laminiko wajibiyalenw : Nɔgɔ/nɔgɔya, Forging + Precision Tolerance sugandi (ka dɔ bɔ nɔgɔya la min bɛ sɔrɔ fit clearance fɛ);
Precision wajibiyalenw: Industrie grade for positioning accuracy > 0.1mm, medical/precision grade for < 0.05mm.
Fɛn minnu bɛ se ka kɛ walasa ka i yɛrɛ tanga jatigɛwalew ma .
Aw ye aw janto "General Tolerance" propagande la: Fɛn dilanbaga dɔ ye IT14 grade tolerance bololafɛnw kɛ IT10 grade ye, o bɛ na ni minɛnw lajɛbaliya ye;
Surface treatment bɛ nɔ bila muɲuli la: kuran bɛ se ka bonya ni 0,02-0,05mm ye, wa muɲuli hakɛ ka kan ka mara;
Kɔrɔbɔli rapɔɔri lajɛ: CMM sɛgɛsɛgɛli rapɔɔri wajibiyalen don, o la, aperture, coaxialité, ani roughness ka kunnafoniw dafalen don.

Farankan
Tolerance grade and precision standard of stainless steel wheels ye "Bridge" ye min bɛ dilancogo jaw ni baarakɛcogo lakikaw siri ɲɔgɔn na: izini-Baarakɛcogo la, o bɛ minɛnw baaracogo gɛlɛn sabati, furakɛli-Danfaraw bɛ tiɲɛni baarakɛcogo lakana, ani tiɲɛniw{{2}Sariyaw bɛ nano hakɛ la. Aw ye a jira ka jɛya ni aw bɛ a sugandi:
Industriw ka ko kɛtaw : sinsin dimension tolerance kan (IT10-IT12) ani slip gɛlɛya kɛlɛli (RA 3.2);
Furakɛcogo : jateminɛ muɲuni (coaxialité de low est ou conseil à 0,03mm) ani surface cleanlines (ra min ka dɔgɔ walima min bɛ bɛn 0,4 ma);
Fɛn minnu bɛ kɛ ka ɲɛ: Aw bɛ tugu tiɲɛni jugumanba kɔ (IT5-IT6) ani zeru defect detection (sampling rate 100%).
Ni GB/ISO sariyaw labatora, ka bɛnkanw taabolow sugandi, ani ka sɛgɛsɛgɛli kɛcogo labato kosɛbɛ, tɔnw bɛ se ka u yɛrɛ tanga jamalajɛ dɛsɛw ma ani baarakɛcogo filiw ma minnu bɛ sɔrɔ muɲubaliya fɛ. Aw ye aw hakili to a la: tigitigiya tɛ bonya ye, nka "hakɛ dɔrɔn" - musaka ni baarakɛcogo balancogo la baarakɛcogo dafali siratigɛ la, o ye bololabaarakɛminɛnw dilanni hakilina jɔnjɔn ye.