Copper Pipe Fitting

Copper yeeb nkab haum

SST machinery muab qhov zoo ntawm cov yeeb nkab tooj liab haum nrog ntau qhov sib txawv raws li qhov xav tau.

Feem ntau hais lus, peb yuav txuas ntxiv vuam rau kev sib txuas ntawm cov yeeb nkab tooj liab thiab cov kav dej, thov pom hauv qab no qee qhov kev vuam yam ntxwv ntawm tooj liab thiab nws cov alloys:

(1) Yooj yim rau fuse thiab yooj yim rau deform thaum vuam. 

Lub thermal conductivity ntawm tooj liab thiab nws cov alloys yog qhov siab, thiab nws cov thermal conductivity yog 7 npaug siab dua li cov hlau ntawm 20 degree; 11 npaug loj dua li cov hlau ntawm 1000 degree. Lub tshav kub conduction yog ceev heev, thiab nws yog ib qho yooj yim rau tsim tsis tiav kev nkag mus, tsis tiav fusion, los yog txawm tsis tuaj yeem vuam. Preheating yuav tsum tau siv txawm tias muaj cua sov uas muaj cov cua sov siab (argon arc vuam, plasma vuam, thiab lwm yam) yog siv. Tooj liab muaj qhov sib txawv loj ntawm kev nthuav dav thiab qhov loj me me (qhov shrinkage tus nqi yog ntau tshaj li ob npaug ntawm cov hlau), thiab thermal expansion thiab txias contraction yog pom tseeb. Tsis tas li ntawd, lub tshav kub conduction yog ceev, lub tshav kub cuam tshuam cheeb tsam ntawm lub vuam yog dav heev, thiab lub deformation tom qab vuam yog loj. Yog tias qhov deformation raug thaiv, qhov kev ntxhov siab sab hauv loj yuav raug tsim.

(2) High crack rhiab heev 

Oxygen yog ib qho nyuaj impurity hauv tooj liab kom tshem tawm. Nws tsis tsuas yog muaj nyob rau hauv tooj liab nyob rau hauv tus txheej txheem ntawm smelting thiab dov, tab sis kuj cov kab mob oxygen nyob rau hauv lub vuam pas dej ua ke yuav tsim Cu2O nrog tooj liab. Yog tias tooj liab muaj Pb, eutectic tsim nrog tooj liab yog 326 degree. Qhov qis-melting eutectic tsis muaj zog ntawm intergranular bonding quab yuam thiab ua rau cov khoom muaj pom tseeb kub brittleness.

Nyob rau hauv tus txheej txheem uas lub zog thiab plasticity ntawm cov khoom yog heev txo los ntawm qhov kub thiab txias ntawm vuam; nyob rau hauv qhov kev txiav txim ntawm qhov loj sab hauv kev ntxhov siab ntawm kev kub ceev txias, solidification thiab shrinkage ntawm weld; nyob rau hauv lub xeev txwv ntawm deformation ntawm lub vuam, kub tawg yog heev yuav tshwm sim. Tsis tas li ntawd, tooj liab thiab nws cov alloys tsis dhau mus rau theem kev hloov pauv thaum lub sijhawm cua sov, thiab txoj kev loj hlob ntawm cov qoob loo ntawm cov weld thiab tshav kub cuam tshuam yog qhov hnyav, uas tseem ua rau muaj kev kub ntxhov.

(3) Siab stomata rhiab heev 

Lub porosity nyiam ntawm tooj liab thiab nws cov alloys thaum lub sij hawm fusion vuam yog ntau hnyav dua li cov hlau me me. Qhov no yog vim: ①Thaum cov weld yog crystallized, supersaturation degree ntawm hydrogen yaj nyob rau hauv cov hlau yog ob peb zaug loj dua cov hlau; ②Cu2O thiab H2 lossis CO hauv lub pas dej molten tsim cov dej vapor lossis CO2, npuas; ③ Lub thermal conductivity ntawm tooj liab Nws yog ntau tshaj 7 npaug ntawm cov hlau, thiab nyob rau hauv xws li ib tug siab txias tus nqi, nws yog ib qho nyuaj rau H2, CO, thiab dej vapor npuas kom khiav tawm tag, thiab pores yog tsim.

(4) Lub zog thiab plasticity ntawm welded pob qij txha raug txo 

Oxidation, evaporation thiab hlawv ntawm alloy ntsiab ntawm tooj liab thiab nws cov alloys thaum fusion vuam; infiltration ntawm impurities; tsis muaj zog ntawm intergranular vim muaj qhov qis-melting eutectic; Coarse nplej nyob rau hauv cheeb tsam cuam tshuam txo lub zog, plasticity, corrosion kuj thiab hluav taws xob conductivity ntawm welded sib koom.

Peb Keeb Kwm

SST machinery tau tsim nyob rau hauv 2010, koom nyob rau hauv ob kab ntawm cov khoom kis tau tus mob, tshuab kis tau tus mob thiab hydraulic kis tau tus mob, xws li iav, sprocket, pulley, siv thiab hydraulic haum, ferrule, adapter, tooj dag haum, connector ect.

Nrog rau ntau tshaj 10 xyoo ntawm kev tsim thiab kev tsim, SST machinery nyiam lub koob npe nrov ntawm nws cov neeg siv khoom thiab xa nws cov khoom mus rau EU, USA, South American, ASIA thiab lwm yam.

Peb tsis tsuas yog ua tiav cov khoom nruj me ntsis nrog DIN, ANSI, ISO tus qauv thiab tswj kom zoo rau kev ua siab ntev, tab sis kuj ua cov khoom raws nraim li tus neeg siv khoom kos duab.

Peb SST machinery tau cog lus los muab cov khoom zoo sib tw thiab kev pabcuam zoo rau peb cov neeg siv khoom.

Cim npe nrov: tooj liab yeeb nkab haum, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, customized, lag luam wholesale, kev muag, ua nyob rau hauv Suav teb