Xaiv txoj cai tooj dag screws nyob rau hauv engineering tej yaam num yog nyob deb ntau complex tshaj tsuas yog sau rau hauv cov ntaub ntawv code ntawm ib tug purchase. Nws yuav tsum muaj kev sib npaug ntawm cov ntaub ntawv tshawb fawb, kev xav txog ib puag ncig, thiab tus nqi -kev ua tau zoo.
Taug kev mus rau hauv ib lub khw muag khoom kho vajtse lossis sab laj nrog tus neeg muag khoom, thiab koj yuav hnov cov lus zoo li H59, H62, tooj dag, thiab tooj liab. Tab sis dab tsi yog qhov txawv ntawm lawv? Vim li cas tus nqi sib txawv? Qhov twg yog qhov zoo tshaj plaws rau koj qhov project? Xaiv cov khoom tsis raug tuaj yeem ua rau muaj teeb meem kev ua haujlwm thiab txawm tias muaj kev nyab xeeb. Hnub no, kuv yuav piav qhia txog qhov sib txawv tseem ceeb ntawm cov khoom siv tooj liab los pab koj xaiv qhov tseeb tshaj plaws thiab txhim khu kev qha.
Cov ntsiab lus tseem ceeb: "Red Copper" vs "Brass"
Cia peb pib nrog ob lub ntsiab lus yooj yim:Liab Copper (Ntshiab Copper)
Liab tooj liab, tseem hu ua tooj liab ntshiab, muaj ntau dua 99.9% tooj liab. Nws cov qauv atomic muab nws qhov tshwj xeeb ductility thiab zoo heev hluav taws xob thiab thermal conductivity.Txawm li cas los xij, qhov "purity" no los nrog lub downside, tsis tshua muaj zog (lub zog tensile nyob ib ncig ntawm 200 MPa) thiab siab plasticity, ua rau nws tsis tsim nyog rau daim ntawv thov uas yuav tsum tau muaj zog fastening quab yuam. Yog li, nws txoj kev siv hauv cov ntsia hlau yog txwv tsis pub tshaj - feem ntau yog rau cov khoom siv hluav taws xob uas xav tau cov khoom siv hluav taws xob sab saum toj, xws li kev sib txuas hauv cov khoom siv hluav taws xob siab. Ntawm no, conductivity los ua ntej, thiab mechanical zog yog theem nrab.
tooj dag
Brass yog ib qho alloy ntawm tooj liab thiab zinc, thiab nws yog cov khoom siv dav tshaj plaws rau " tooj dag screws ." Ntxiv zinc ho nce lub zog thiab hardness, tab sis me ntsis txo conductivity thiab ductility. Los ntawm kev kho cov tooj liab-zinc piv thiab ntxiv lwm cov ntsiab lus, peb tau txais cov khoom sib txawv ntawm cov khoom sib txawv -H59, H62, H65, thiab lwm yam. Cov npe no xa mus rau ntau qib ntawm tooj dag.
Cov khoom siv tooj dag ncaj qha nyob ntawm zinc cov ntsiab lus, nrog cov zinc siab dua, tooj dag yuav muaj zog dua thiab hardness, tab sis qis dua ductility.Thaum zinc ntau tshaj 45%, cov khoom ua nkig thiab nyuaj rau kev ua haujlwm. Yog li ntawd, cov khoom siv ntsia hlau feem ntau khaws zinc hauv qab 40%.
BTW, tooj dag (xws li, C3604) muaj me me ntawm cov hlau lead, uas zoo heev txhim kho machinability, ua cov ntsia hlau taub hau tag nrho thiab threads ntse. Txawm li cas los xij, vim yog cov kev cai ib puag ncig xws li RoHS, cov hlau lead- dawb machinable tooj dag (xws li, C3452, muaj bismuth lossis silicon) tau dhau los ua cov khoom lag luam xa tawm.
H59 tooj dag yog qhov pheej yig tshaj plaws thiab siv tau
H59 tooj dag muaj cov ntsiab lus tooj liab qis tshaj plaws thiab cov ntsiab lus zinc siab tshaj plaws, ua rau nws tus nqi ntau tshaj - zoo. Cov ntsiab lus zinc siab no kuj tseem muab lub zog ntau dua thiab tawv, tab sis ntawm cov nqi txo qis thiab tawv, thiab nws yuav ua rau qhov kub thiab txias. Nws cov corrosion kuj, tshwj xeeb tshaj yog nws tsis kam mus dezincification corrosion, kuj tsis muaj zog ntawm tooj dag. Yog li ntawd, nws yog qhov tsim nyog rau tus nqi- daim ntawv thov nkag siab hauv qhov chaw qhuav ib txwm, qhov twg cov khoom siv tshuab tsis tseem ceeb. Nws tsis pom zoo rau kev siv sab nraum zoov, qhov chaw ntub dej, lossis kev thauj khoom hnyav heev -cov qauv kabmob.
H62 tooj dag yog cov tooj dag siv dav tshaj plaws
H62 tooj dag muab qhov sib npaug zoo ntawm cov ntsiab lus tooj liab, lub zog, ductility, corrosion kuj, thiab nqi. Nws muaj chav zoo -kub ductility, thaum tseem muab lub zog txaus thiab hardness rau feem ntau daim ntawv thov. Nws yog cov khoom siv ntau tshaj plaws thiab dav siv tooj liab ntsia hlau hauv khw kho vajtse. Yog tias koj tsis paub meej, H62 yog qhov kev nyab xeeb thawj koom ruam hauv feem ntau. Nws yog tsim rau cov kav dej, cov li qub, qis- cov khoom siv hluav taws xob hluav taws xob, thiab cov qauv hauv tsev.
H65 / H68 tooj dag muaj cov ntsiab lus tooj liab ntau dua
H65 / H68 tooj dag xim yog ze rau kub. Nws zoo heev plasticity thiab toughness ua rau nws zoo haum rau kev tsim cov txheej txheem zoo li lub taub hau txias thiab kos duab, ua kom pom tseeb, zoo nkauj ntsia hlau threads. Nws cov corrosion kuj tseem superior rau H62. H65 yog qhov kev xaiv zoo tshaj plaws rau cov ntsia hlau nrog cov duab nyuaj lossis xav tau cov xov zoo heev thiab qhov zoo. Nws kuj yog feem ntau siv rau hauv cov khoom siv kho kom zoo nkauj thiab cov mos txwv.
Silicon Bronze - Qhov kawg Solution for Harsh Environments
Silicon bronze tsis yog tooj liab zinc alloy lawm. Nws yog tooj liab, silicon, tin, manganese system.Ntxiv silicon ho txhim khu lub zog, qaug zog tiv thaiv, thiab kev ntxhov siab corrosion cracking kuj, thaum tin txhim kho seawater corrosion kuj. Silicon bronze ua tiav lub zog siab piv rau nruab nrab carbon steel thaum tswj kev ua haujlwm zoo corrosion. Nws yog qhov kev xaiv sab saum toj rau marine, offshore, thiab tshuaj ib puag ncig uas ob qho tib si kev ntseeg siab thiab kev tiv thaiv corrosion yog qhov tseem ceeb.
Kev sib piv ntawm cov khoom siv tooj liab ntsia hlau
Txhawm rau qhia qhov sib txawv kom meej meej, cia peb ua qhov sib piv ntau dua:
| Khoom siv | Cov Cheebtsam | Cov yam ntxwv tseem ceeb | Qhov zoo | Qhov tsis zoo | Tej kev siv |
|---|---|---|---|---|---|
| H59 tooj | 59% Cu, sib npaug Zn | Economic, tsim nyog lub zog | Tus nqi qis tshaj, zoo machinability | Tsis zoo corrosion kuj, brittle nyob rau hauv txias | Qhov chaw sab hauv tsev, lub teeb -cov haujlwm fittings, rooj tog zaum |
| H62 tooj | ~ 62% Cu, sib npaug Zn | Qhov zoo tshaj plaws sib npaug | Zoo zog, ductility, corrosion kuj | Tsis haum rau thaj chaw marine | Valves, kav dej, khoom siv hluav taws xob, kho vajtse |
| H65 / H68 tooj dag | 65-68% Cu | High ductility thiab toughness | Kev ua haujlwm txias txias, zoo dua corrosion kuj | Tsawg zog me ntsis, tus nqi siab dua | Precision screws, hniav qhov chaw, casings |
| Tooj liab (T2) | >99.9% Cu | Ntshiab tooj liab | Sab saum toj conductivity, zoo heev ductility | Tsawg zog, tus nqi siab | Kev sib txuas hluav taws xob, cov khoom siv hluav taws xob |
| Silicon Bronze (C65500) | Cu-Si-Sn alloy | Marine- qib kev ua tau zoo | Tsis tshua muaj zog thiab corrosion kuj | kim heev | Marine hardware, offshore platforms, tshuaj nroj tsuag |
Yuav ua li cas thiaj nrhiav tau cov khoom zoo?
1. Koj qhov kev thov ib puag ncig yog dab tsi? (Qhov no yog thawj lo lus nug.)
Rau ib puag ncig sab hauv tsev / qhuav: H62 yog tus nqi tshaj plaws - xaiv tau zoo. Rau qhov chaw ntub dej / kev sib cuag dej tsis tu ncua: Ua ntej cov tooj dag qib H65 lossis siab dua. Rau ib puag ncig corrosive heev xws li seawater thiab tshuaj nroj tsuag: Silicon bronze yog ib qho yuav tsum tau. Rau qhov tsis tshua muaj siab - qhov kub thiab txias: Tsis txhob H59 thiab xaiv H65 lossis silicon bronze rau nws qhov hnyav dua.
2. Koj lub luag haujlwm tseem ceeb yog dab tsi? (Conductivity lossis mechanical zog?)
Yog tias conductivity yog qhov koj xav tau thiab koj cov peev nyiaj tso cai, xaiv cov tooj liab liab. Txwv tsis pub, peb feem ntau xav txog tooj dag nrog cov ntsiab lus tooj liab ntau dua rau kev ua tau zoo dua. Yog tias fastening thiab load- bearing yog koj cov kev cai tseem ceeb: Xaiv ntawm H62, H65, thiab silicon bronze, nyob ntawm qhov hnyav ntawm ib puag ncig thiab koj cov peev nyiaj. Feem ntau, H62 / H65 yog siv rau tus qauv lub zog (tsawg dua lossis sib npaug li 400 MPa), thaum silicon bronze siv rau lub zog siab (Ntau dua lossis sib npaug rau 500 MPa).
3. Puas yog daim ntawv thov npaj rau ib puag ncig tshwj xeeb?
Yog tias qhov kub thiab txias ua haujlwm: Puas yog qhov kub thiab txias (<-20℃)? Avoid using H59 with poor toughness. Antibacterial requirements: Medical, food equipment? All copper alloys have varying degrees of antibacterial properties, but the surface finish must be ensured. Non-magnetic requirements: Electronic laboratories, MRI equipment? All copper alloys are non-magnetic materials. Industry standards: Drinking water (NSF/ANSI 61), ships (classification society certification), etc. have specific material requirements.
4. Koj pob nyiaj siv yog dab tsi?
The price of copper materials is generally silicon bronze/red copper>H65>H62>H59. Yog tias koj cov peev nyiaj txaus thiab koj xav tau ntev - siv sijhawm ntev, kuv xav kom xaiv cov khoom siv nrog kev ua tau zoo dua nyob rau hauv qhov kev tso cai. Ib qho - lub sijhawm peev tuaj yeem txuag tau qhov teeb meem ntawm kev kho thiab hloov pauv tom ntej.
5. Puas muaj cov qauv kev lag luam tshwj xeeb lossis cov ntawv pov thawj?
Piv txwv li, qhov chaw uas tuaj rau hauv kev sib cuag nrog cov dej haus yuav tsum tau ntawv pov thawj NSF, thiab cov khoom siv hauv hiav txwv yuav muaj kev faib tawm hauv zej zog. Cov qauv no feem ntau qhia ncaj qha lossis pom zoo rau cov khoom siv.
Peb cov khoom lag luam
| Qeb | Khoom npe | Txheem Specifications | Hom ntawv | Cov ntawv thov siv |
|---|---|---|---|---|
| Tube tooj | Copper & Copper Alloy Tubes | ASTM B68, B75, B88, B280, B306, EN 12449, 12451, JIS H3300 | Ncaj ntev, coils, U-khoov | HVACR, kav dej, cua kub exchangers, tub yees, industrial pipelines |
| Copper Rods | Copper & Copper Alloy Rods | ASTM B187, B301, B441, EN 12163, 12164, JIS H3250 | Hloov, hexagonal, square, rectangular | Hluav taws xob cov khoom, fasteners, machined qhov chaw, connectors |
| Copper Phaj / Ntawv | Copper & Copper Alloy Phaj / Ntawv | ASTM B152, B248M, EN 1652, JIS H3100, H3110 | Phaj, ntawv, coils | Architectural cladding, vov tsev, tshuaj tso tsheb hlau luam, hluav taws xob tiv thaiv, fabrication |
| Tooj Hlau | Copper & Copper Alloy Hlau Hlau | ASTM B1, B3, B258, EN 13601, 13602, IEC 60228 | Liab qab, tinned, tso tseg, ib leeg -kawg | Hluav taws xob thaiv, cables, windings, conductors, hlau mesh |
| Copper Sawb / Bands | Copper & Copper Alloy Sawb | ASTM B103, B122, B534, EN 1654, JIS H3110, H3260 | Coils, slit strips, nqaim dav | Busbars, connectors, terminals, transformers, electronics Cheebtsam |
| Lwm cov khoom siv tooj liab | Kev cai Profiles & Cov duab tshwj xeeb | Kev cai specifications, drawings txais | Extruded, kos, dov | Kev cai engineering, automotive, aerospace, tshwj xeeb muaj kev siv |
Tau txais daim ntawv teev cov khoom tiav
Copper Ntim
Peb cov khoom siv tooj liab txhua tus siv cov kev ntim khoom ntim kom ntseeg tau tias kev nyab xeeb ntawm kev thauj mus los thiab kev ruaj ntseg ntawm cov khoom lag luam: cov raj tooj liab thiab cov pas nrig yog nruj nreem qhwv nrog cov dej noo- pov thawj stretch zaj duab xis thiab ruaj khov rau ntawm cov ntoo pallets, nrog rau cov ces kaum tiv thaiv ntxiv rau - cov raj ntev; Copper daim hlau, strips, thiab hlau coils yog lined nrog waterproof ntawv los yog yas zaj duab xis, tsau sab nraud nrog ruaj khov ntoo crates los yog hlau-Strapped khoom ntoo pallets, thiab muaj xws li VCI (Volatile Corrosion Inhibitor) ntawv sab hauv los tiv thaiv corrosion. Tag nrho cov pob khoom raug cim kom meej nrog cov ntaub ntawv khoom, nqa cov cim, thiab cov lus ceeb toom ntawm ya raws / cuam tshuam, thiab tuaj yeem kho raws li tus neeg yuav tsum tau ua kom muaj kev nyab xeeb xa mus rau qhov chaw thoob ntiaj teb.
