Dab tsi yog qhov saum 5 cov hlau hnyav?

Hnyav hlau yog ib pawg hauv paus ntawm cov khoom siv hluav taws xob niaj hnub tsim, kev tsim hluav taws xob, hluav taws xob, thiab kev tsim kho. Feem ntau cuam tshuam nrog kev txhawj xeeb ntawm ib puag ncig thiab kev noj qab haus huv hauv kev hais lus rau pej xeem, cov hlau hnyav yog qhov tseem ceeb rau kev lag luam kev vam meej - ntau ntawm cov khoom, cov tsev, thiab cov thev naus laus zis uas peb tso siab rau txhua hnub nyob ntawm lawv lub cev thiab tshuaj lom neeg tshwj xeeb.

Tab sis dab tsi yog suav tias yog cov hlau hnyav, thiab qhov twg yog qhov tseem ceeb tshaj plaws rau kev lag luam? Hauv phau ntawv qhia dav dav no, peb txhais cov kev faib cov hlau hnyav, rhuav tshem sab saum toj 5 feem ntau cov hlau hnyav hnyav los ntawm kev siv thoob ntiaj teb thiab kev cuam tshuam nyiaj txiag, piav qhia lawv cov khoom tseem ceeb thiab tiag - ntiaj teb kev siv, thiab tshawb nrhiav lawv lub luag haujlwm hauvprecision hlau stampingthiabsheet hlau fabrication.

Dab tsi txhais tau tias Hnyav Hlau?

Ua ntej, nws yog ib qho tseem ceeb kom paub meej qhov kev faib tawm.Cov hlau hnyav feem ntau txhais tau tias yog cov khoom siv hlau nrog qhov ntom ntawm 5 g / cm³ lossis siab dua, ua ke nrog qhov hnyav atomic hnyav. Qhov kev faib tawm no yog nyob ntawm lub cev ntom ntom, tsis yog tshuaj lom.

Ntau yam kev lag luam hlau - suav nrog hlau, zinc, thiab tin - technically tsim nyog raws li cov hlau hnyav. Txawm li cas los xij, thaum cov kws tshaj lij kev lag luam thiab cov neeg tswj hwm siv cov hlau hnyav tshaj plaws, lawv feem ntau xa mus rau tsib lub ntsiab lus uas sib xyaw ua ke siab, kev siv dav dav, thiab qhov tseem ceeb ntawm ib puag ncig lossis kev nyab xeeb kev ua haujlwm. Cov ntaub ntawv tsib no tshwm sim thoob plaws txhua qhov kev lag luam loj, los ntawm kev tsim kho thiab tsheb mus rau electronics thiab aerospace.

Sab saum toj 5 Heavy Metals nyob rau hauv Industrial Manufacturing

Txhua yam ntawm tsib cov hlau hnyav no coj cov khoom tshwj xeeb uas ua rau nws hloov tsis tau hauv cov ntawv thov tshwj xeeb. Hauv qab no yog cov ncauj lus kom ntxaws ntawm txhua tus.

1. Lead (Pb)

Nrog ib tug ceev ntawm11.34 g / cm³, txhuas yog ib qho ntawm cov densest thiab feem ntau dav lees paub cov hlau hnyav. Nws yog ib tug mos mos, heev malleable hlau nrog zoo heev corrosion kuj thiab heev melting point. Tib neeg tau siv lead ua rau ntau txhiab xyoo, thiab nws tseem yog ib qho ntawm cov hlau hnyav tshaj plaws hauv ntiaj teb.

Kev siv tseem ceeb hauv kev lag luam:

• Lead-acid roj teeb:Txog tam sim no daim ntawv thov loj tshaj plaws, suav txog ntau dua 80% ntawm cov khoom siv lead ua thoob ntiaj teb. Siv hauv tsheb, forklifts, lub zog khaws cia, thiab cov khoom siv hluav taws xob rov qab.
• Kev tiv thaiv hluav taws xob:Nws qhov siab ceev ua rau nws zoo tagnrho rau kev tiv thaiv X- cov khoom siv hluav taws xob, cov chaw siv hluav taws xob, thiab cov khoom siv kho mob.
• Cov ntaub ntawv tsim kho:Ru tsev flashings, gutters, thiab architectural Cheebtsam nyob rau hauv historic thiab industrial vaj tse.
• Alloys thiab bearings:Siv nyob rau hauv qis -kev sib txhuam bearing alloys, solder alloys, thiab tshwj xeeb casting khoom.

Kev nyab xeeb thiab kev tswj hwm cov ntsiab lus:Lead yog ib qho paub txog neurotoxin thaum noj los yog nqus tau raws li plua plav lossis pa taws. Cov kev cai thoob ntiaj teb nruj me ntsis tau ua cov hmoov txhuas tawm ntawm cov xim, cov kav dej, thiab cov khoom siv feem ntau. Txawm li cas los xij, nws tseem yog qhov tseem ceeb rau kev lag luam roj teeb thiab daim ntawv thov kev tiv thaiv thaum ua haujlwm raws li kev tswj hwm, ua raws li cov xwm txheej.

2. Mercury (Hg)

Mercury yog tib yam hlau uas muaj nyob hauv cov kua hauv chav tsev kub. Nrog ib tug ceev ntawm13.53 g / cm³, nws kuj yog ib qho ntawm cov densest ib txwm tshwm sim hais. Nws lub xeev cov kua tshwj xeeb, cov thermal expansion, thiab hluav taws xob conductivity muab nws tshwj xeeb muaj nqi.

Kev siv tseem ceeb hauv kev lag luam:

• Chlor{0}}alkali kev lag luam:Kev lag luam loj tshaj plaws ntawm kev siv mercury yog mercury -cov nroj tsuag ntawm tes tsim cov tshuaj chlorine thiab caustic soda rau cov tshuaj lom neeg.
• Teeb pom kev zoo thiab electronics:Cov teeb fluorescent, cov qij fluorescent, thiab qee qhov siab -cov teeb tawm siv hluav taws xob cia siab rau cov pa mercury.
• Kev Kho Hniav:Silver-mercury amalgam tau siv rau hauv kev kho hniav ntau tshaj ib puas xyoo.
• Industrial instrumentation:Cov ntsuas kub ib txwm, ntsuas ntsuas, thiab ntsuas ntsuas siab siv cov kua mercury kom ntsuas qhov tseeb thiab zoo ib yam.

Kev nyab xeeb thiab kev tswj hwm cov ntsiab lus:Mercury yog cov tshuaj lom heev, tshwj xeeb tshaj yog nyob rau hauv nws cov vapor thiab cov ntaub ntawv organic. Cov kev cai thoob ntiaj teb raws li Minamata Convention tau nquag ua haujlwm mercury tawm ntawm cov neeg siv khoom feem ntau thiab siv ntau yam kev lag luam. Kev thov tau poob qis tsis tu ncua, tab sis nws tseem tsis tau hloov pauv hauv qee cov txheej txheem tshuaj lom neeg.

3. Chromium (Cr)

Chromium yog ib qho nyuaj, lustrous hnyav hlau nrog ib tug ceev ntawm7.19 g / cm³. Nws yog qhov paub zoo tshaj plaws rau nws qhov tshwj xeeb corrosion kuj thiab muaj peev xwm tsim tus kheej - kho cov txheej txheem oxide ntawm cov hlau.

Kev siv tseem ceeb hauv kev lag luam:

• Stainless hlau ntau lawm:Kev siv ntau tshaj plaws ntawm chromium. Tag nrho cov hlau stainless muaj qhov tsawg kawg nkaus ntawm 10.5% chromium, uas tsim cov txheej txheem oxide tiv thaiv uas tiv thaiv xeb.
• Electroplating:Kho kom zoo nkauj thiab ua haujlwm chrome plating muab kev hnav tsis kam, tiv thaiv corrosion, thiab polished tiav ntawm cov khoom siv tsheb, cov cuab yeej, thiab cov khoom siv.
• Alloy manufacturing:Ntxiv rau siab -lub zog steels thiab superalloys los txhim kho hardness thiab siab -kub kev ua haujlwm.
• Tshuaj thiab tawv kev lag luam:Siv rau hauv tawv tanning, pigments, thiab tshuaj kho deg.

Kev nyab xeeb thiab kev tswj hwm cov ntsiab lus:Chromium muaj nyob rau hauv ntau lub xeev valence. Trivalent chromium (Cr III) yog ib qho tseem ceeb ntawm tib neeg noj zaub mov zoo thiab yog daim ntawv muaj nyob rau hauv stainless hlau alloys. Hexavalent chromium (Cr VI) yog tshuaj lom thiab carcinogenic. Kev tswj hwm nruj tswj hwm hexavalent chromium raug thiab ib puag ncig tso tawm. Chromium khi rau hauv cov khoom tiav alloy yog inert thiab muaj kev nyab xeeb rau kev siv ib txwm.

4. Nickel (Ni)

Nickel yog silvery -white hlau hnyav nrog ib tug ntom ntawm8.91 g / cm³. Nws yog khoom plig rau nws zoo heev corrosion kuj, siab - kub stability, thiab ductility zoo heev.

Kev siv tseem ceeb hauv kev lag luam:

• Stainless hlau alloys:Cov neeg siv khoom loj tshaj plaws ntawm nickel thoob ntiaj teb. Austenitic stainless hlau xws li 304 thiab 316 muaj 8-16% npib tsib xee, uas txhim kho toughness, formability, thiab corrosion kuj.
• High -kub superalloys:Siv dav hlau tshuab, roj turbines, thiab cov khoom siv hluav taws xob uas yuav tsum ua raws li qhov kub thiab txias.
• Rechargeable roj teeb:Nickel yog cov khoom tseem ceeb hauv nickel-metal hydride (NiMH) thiab lithium-nickel roj teeb chemistry siv hauv tsheb fais fab thiab lub zog cia.
• Electroplating thiab nto engineering:Nickel plating muab kev tiv thaiv corrosion ruaj khov ntawm cov hlau.

Kev nyab xeeb thiab kev tswj hwm cov ntsiab lus:Nickel yog ib qho kev sib cuag ntawm daim tawv nqaij rau qee tus neeg, thiab nickel plua plav nqus pa ua rau muaj kev phom sij rau kev noj qab haus huv. Ua tiav nickel-cov kabmob alloys xws li stainless hlau feem ntau muaj kev nyab xeeb thiab inert nyob rau hauv kev siv ib txwm siv. Nickel suav hais tias yog ib qho tseem ceeb ntawm cov hlau vim nws qhov tseem ceeb rau kev huv huv thiab kev tsim khoom siab heev.

5. Copper (Cu)

Tooj liab yog xim liab - liab qab hnyav hlau nrog qhov ntom ntawm8.96 g / cm³. Nws yog ib qho ntawm cov hlau qub tshaj plaws uas siv los ntawm tib neeg kev vam meej, thiab tseem yog ib qho tseem ceeb ntawm cov hlau hnyav tshaj plaws hauv ntiaj teb. Nws cov cuab yeej txhais tau tshwj xeeb hluav taws xob thiab thermal conductivity, ntuj corrosion kuj, thiab zoo heev formability.

Kev siv tseem ceeb hauv kev lag luam:

• Hluav taws xob thiab electronics:Cov khoom tseem ceeb rau fais fab cables, busbars, thaiv,PCB terminals, thiab hluav taws xob connectors. Tsis muaj lwm tus nqi- cov khoom siv tau zoo sib xws nrog tooj liab kev sib xyaw ua ke thiab kev tsim qauv.
• Thaum tshav kub kub exchangers thiab HVAC:Siv nyob rau hauv radiators, cua txias coils, thiab industrial thermal systems.
• Kev tsim kho thiab architecture:Cov kav dej, vov tsev, thiab cov khoom siv kho kom zoo nkauj.
• Copper alloys:Brass (tooj liab-zinc), bronze (tooj liab- tin), thiab beryllium tooj liab yog dav siv hauv stamping, bearings, springs, thiab precision Cheebtsam.

Kev nyab xeeb thiab kev tswj hwm cov ntsiab lus:Tooj liab yog ib qho tseem ceeb ntawm cov khoom noj rau tib neeg noj qab haus huv. Nws yog ib qho ntawm cov hlau hnyav tshaj plaws rau kev lag luam thiab cov khoom siv. Kev pheej hmoo ua haujlwm tsuas yog txwv rau kev nqus pa ntawm tooj liab thaum lub sijhawm ua haujlwm siab - kub, uas yooj yim tswj nrog kev tswj qhov cua.

NtawmJoyear Hlau ua haujlwm, peb tsim high -precisiontooj liab alloy precision stamping qhov chawsuav nrogPCB vuam terminalsthiab txiv neej ca terminals rau lub ntiaj teb no electronics thiab hluav taws xob industries. Peb cov kab stamping txheej txheem siab -qib tooj liab alloys nrog nruj tolerances, xa zoo ib yam conductivity thiab seem raug rau siab - ntim ntau lawm. Yog xav paub ntxiv, mus saib peb nplooj ntawv Hlau Fabrication:https://www.joyearmetalwork.com/other-metal-parts/custom-sheet-metal-fabrication/.

Hnyav Hlau hauv Hlau Stamping & Industrial Fabrication

Nyob rau hauv tiag tiag- ntiaj teb kev tsim khoom, cov hlau hnyav hnyav tsis tshua raug ntaus ncaj qha. Hloov chaw, lawv feem ntau yog siv los ua alloying cov ntsiab lus ntxiv rau steel, tooj liab, thiab txhuas los txhim kho kev ua haujlwm tshwj xeeb. Qhov no yog qhov uas hnyav hlau xa lawv cov txiaj ntsig zoo tshaj plaws hauv cov khoom siv hlau.

Piv txwv li:

• Stainless hlau Cheebtsamcia siab rau chromium thiab npib tsib xee kom xa cov kev tiv thaiv corrosion thiab lub zog muaj zog. Hinges muaj, cov khoom siv enclosures, thiab cov khoom ua zaub mov tag nrho yog nyob ntawm cov khoom hnyav hlau alloy.
• Hluav taws xob terminals thiab connectorssiv tooj liab alloyed nrog zinc, tin, los yog npib tsib xee kom sib npaug hluav taws xob conductivity nrog txhua yam muaj zog thiab hnav tsis kam.
• Heavy structural Cheebtsamxws liforklift tshebthiab cov khoom siv thav duab siv cov hlau alloy uas muaj chromium, molybdenum, thiab lwm yam hlau hnyav kom ua tiav lub zog tensile siab thiab qaug zog.

Xaiv txoj cai alloy formulation yuav tsum muaj kev paub txog cov khoom sib sib zog nqus thiab cov txheej txheem stamping kev txawj ntse. Txoj cai sib npaug ntawm cov hlau hnyav alloy cov ntsiab lus muab kev ua haujlwm zoo tshaj plaws yam tsis muaj nqi tsim nyog.

Vim li cas koom tes nrog Joyear Metalwork rau Alloy Stamping & Fabrication?

Ua haujlwm nrog cov hlau hnyav hnyav yuav tsum muaj cov chaw tsim khoom nrog kev tswj xyuas zoo, muaj ntawv pov thawj kev tswj hwm ib puag ncig, thiab cov txheej txheem sib sib zog nqus.

Joyear Hlau ua haujlwmyog ISO 9001: 2015 thiab ISO 14001: 2004 certified hlau stamping thiab sheet hlau fabrication chaw tsim tshuaj paus nrog ntau tshaj 15 xyoo ntawm kev lag luam kev lag luam. Founded hauv 2008, peb 5,{8}} square meter chaw tsim khoom ntiav ntau tshaj 300 tus kws tshaj lij thiab pabcuam OEMs, cov khoom lag luam, thiab cov neeg siv khoom lag luam thoob ntiaj teb.

Peb lub peev xwm tseem ceeb nrog cov hlau hnyav hlau muaj xws li:

• Tooj alloy precision stampingrau hluav taws xob terminals, connectors, thiab cov khoom siv hluav taws xob
• Stainless hlau stamping thiab sib saurau72 nti stainless hlau piano hinges, ntev hlau hinges, thiab corrosion{0}}resistant industrial qhov chaw
• Siab -lub zog alloy steel fabricationforklift forklift thiab cov khoom tuav cov khoom, ua rau ISO 2330 thiab ANSI/ITSDF B56.11.4 tus qauv
• Prototype sheet hlau stampingrau kev tsim qauv sai validation thoob plaws tag nrho cov ntaub ntawv alloy
• Tag nrho hauv -cov haujlwm thib ob hauv tsev, ua tiav, thiab kev lees paub zoo

Tag nrho peb cov txheej txheem tsim khoom ua raws li cov qauv kev nyab xeeb thoob ntiaj teb thiab chaw ua haujlwm. Peb tuav tag nrho traceability ntawm tag nrho cov ntaub ntawv alloy, rov ua dua 100% ntawm cov hlau ntau lawm, thiab kho cov txheej txheem dej khib nyiab ua ntej tso tawm kom ntseeg tau tias tsis muaj kev tswj xyuas cov hlau hnyav. Peb ISO 14001 certified ib puag ncig kev tswj system ua kom lub luag haujlwm, kev tsim khoom ruaj khov rau txhua tus neeg siv khoom xaj.

Xav paub ntau ntxiv txog peb cov khoom muaj peev xwm stamping thiab fabrication, mus saibJoyear Hlau ua haujlwmlos yog hu rau peb pab neeg ua haujlwm engineering los tham txog koj cov kev xav tau ntawm cov alloy.

Cov lus nug nquag

Q: Dab tsi tsim nyog rau cov hlau ua hlau hnyav?

• A: Cov hlau hnyav tau txhais dav dav tias yog cov khoom siv hlau nrog qhov ntom ntawm 5 g / cm³ lossis siab dua thiab hnyav atomic hnyav. Kev faib tawm yog nyob ntawm lub cev ntom ntom, tsis yog tshuaj lom.

Q: Puas yog tag nrho cov hlau hnyav hnyav?

• A: Tsis yog. Ntau cov hlau hnyav xws li tooj liab, hlau, thiab chromium (trivalent daim ntawv) yog cov khoom noj tseem ceeb rau tib neeg noj qab haus huv hauv cov khoom me me. Toxicity nyob ntawm daim ntawv tshwj xeeb, qib raug, thiab txoj kev nkag. Cov hlau hnyav khi hauv cov khoom tiav alloy zoo li cov hlau tsis muaj zog yog inert thiab muaj kev nyab xeeb nyob rau hauv ib txwm siv.

Q: Cov hlau hnyav dab tsi muaj nyob hauv stainless hlau?

• A: Ob lub ntsiab hlau hnyav hlau alloying hauv stainless hlau yog chromium thiab npib tsib xee. Standard 304 stainless hlau muaj kwv yees li 18% chromium thiab 8% npib tsib xee. Cov qib siab dua xws li 316 ntxiv molybdenum rau kev txhim kho corrosion kuj.

Q: Puas yog tooj liab ua cov hlau hnyav?

• A: Yog, tooj liab raug cais raws li cov hlau hnyav vim nws qhov ntom ntawm 8.96 g / cm³. Nws yog ib qho ntawm feem ntau siv thiab industrially tseem ceeb hlau hnyav, muaj nuj nqis rau nws cov hluav taws xob thiab thermal conductivity.

Q: Ua li cas cov tuam txhab hlau ua kom muaj kev nyab xeeb ntawm cov hlau hnyav?

• A: Cov tuam txhab muaj lub luag haujlwm siv cov ntawv pov thawj ib puag ncig kev tswj hwm, tswj hwm kev ua haujlwm tsis pub dhau, kho tag nrho cov txheej txheem dej khib nyiab, thiab rov ua dua cov hlau seem hauv kaw - lub voj voog. Kev ua raws li cov qauv xws li ISO 14001 thiab cov kev cai thoob ntiaj teb xws li REACH thiab RoHS ua kom muaj kev nyab xeeb, ua haujlwm ib puag ncig.

Kev xav zaum kawg

Sab saum toj 5 cov hlau hnyav - txhuas, mercury, chromium, npib tsib xee, thiab tooj liab - txhua tus ua haujlwm tshwj xeeb thiab hloov tsis tau hauv kev lag luam niaj hnub no. Los ntawm stainless hlau pob khawm ntawm cov cuab yeej siv rau cov tooj liab terminals hauv txhua lub tshuab hluav taws xob, cov ntaub ntawv no ua rau cov thev naus laus zis thiab kev tsim kho vaj tse uas yuav tsis tuaj yeem ua tau nrog cov hlau sib zog ib leeg.

Txawm hais tias qee cov hlau hnyav nqa tau zoo -cov ntaub ntawv muaj kev pheej hmoo ntawm ib puag ncig thiab kev noj qab haus huv, lub luag haujlwm tsim kev lag luam raws li cov qauv kev cai nruj tso cai rau cov ntaub ntawv no siv tau zoo thiab ruaj khov. Rau cov kws tsim khoom lag luam thiab pab pawg muag khoom, tus yuam sij yog ua haujlwm nrog cov neeg tsim khoom muaj ntawv pov thawj uas nkag siab txog cov ntaub ntawv tshawb fawb, tswj xyuas tag nrho cov ntaub ntawv zoo, thiab ua haujlwm raws li kev lees paub thoob ntiaj teb ib puag ncig.