Heat exchange tube hi heat exchanger-a heat exchange element a ni. Heat exchange tube quality leh performance characteristics hian heat exchange work leh heat exchange efficiency a nghawng dawn a ni. Chuvangin, heat exchange tube hman tangkai zawk nan chuan uluk taka thlan a, dik taka hmachhawn a ngai a ni. Thil awmdan pangngaiah chuan, corrosion resistance tha tak a neih avangin stainless steel heat exchange tube thlang turin kan rawt a che; Tin, stainless steel heat exchange tube enkawlnaah hian a bik takin: heat treatment, grinding treatment, pickling passivation, etc. te a tel a, chung zingah chuan heat treatment a pawimawh zawk. Chuvangin, stainless steel heat exchange tubes hmanga heat treatment an tih dan i hria em? A dawtah chuan Seko Machinery chuan an rawn entir vek ang che.
Stainless steel tube structure chu heat treatment hmangin a danglam thei a, machinability pawh a danglam thei bawk. Entirnan, 06CR19NI10 stainless steel heat exchange tube hian carbon a nei tlem hle a. Normalizing hman pawh nise, ha siamtu (tooth shaper) surface roughness mamawh chu tihhlawhtlin a harsa a, hmanrua nunna pawh a tlem phah a ni. Low-carbon martensite leh ferrite structure chu incomplete quenching hnuah an hmu a, hardness (HRC20～25) chu a tha zawk a ni. Surface roughness hian a mamawh a phuhruk mai bakah stainless steel heat exchange tube nunna chu a let 3 atanga 4-in a tipung bawk a, chuvangin a tha zawk nan stainless steel heat exchange tube hman tur chuan stainless steel tubes te chu heat treatment a ngai a ni.
Stainless steel pipe factory-in heat treatment process a thlan dik chuan steel grinding performance chu a ti tha thei hle. Entirnan, carburized layer-a carbon mass fraction khauh taka control (W=1.10% aia tam lo), network carbides tihbo, etc. chuan heat transfer grinding performance a ti tha thei a ni.
Ram danga stainless steel heat exchange tube-te heat treatment-ah hian a tlangpuiin non-oxidation continuous heat treatment furnace chu protective gas hmangin an hmang thin. A siam zawh tawha heat treatment leh a tawp bera heat treatment-a heat treatment chu tih a ni. Oxidation tel lova lei eng tak a awm theih avangin traditional acid chu a bo vek a ni. Washing process, he heat treatment process hman hian steel pipe quality a ti tha mai bakah, pickling avanga boruak bawlhhlawh pawh a hneh thei bawk.
Tuna khawvel hmasawnna kalphung ang chuan bright continuous furnaces hi a bulpui berah chuan chi thum ah then a ni a:
(1) Roller hearth chi bright heat treatment furnace. Hetiang furnace type atana hman theih tur venna gas chu high-purity hydrogen, decomposed ammonia leh protective gas dang a ni. Steel pipe tihlum thuai turin convection cooling system hmangin a thuam theih bawk. Steel pipe lian leh lian tak tak, heat treatment atan a tha hle. Darkar khata output chu ton 1.0 a ni. A chunga kan sawi tak hi. Hangao Tech (Seko Machinery) hi he field ah hian a specialise hle a ni. Roller-hearth chhunzawm zel tur coil bright annealing furnace . Line pumpui hmalam leh hnunglam traction speed synchronization bakah hian temperature control accuracy leh air tightness lamah hna tha tak kan thawk a ni. Domestic stainless steel heat exchange tube siamtu lar tak chu kan brand hmangtu rinawm tak a ni ta.
(2) Mesh belt type bright heat treatment furnace, he furnace type hi small diameter thin-wall precision steel pipe tan a tha hle. Darkar khat chhunga an thil siam chhuah chu ton 0.3-1.0 vel a ni a, steel pipe sei zawng chu meter 40 thleng a ni thei a, coil-a capillary tube pawh a process thei bawk.
(3) Muffle chi hrang hrang hmanga siam, heat hmanga enkawlna furnace. Steel pipe chu continuous rack-a dah a, muffle tube-a heating kalpui a ni. He heat treatment hmang hian small-diameter thin-walled steel pipe quality tha tak tak te chu man tlawm zawkin a process thei a, darkar khata an thil siam chhuah chu ton 0.3 vel emaw a aia tam emaw a ni thei bawk.
