Vacuum metalising plastic hi substrate chungah metal layer siam theihna a ni a, a tlangpuiin thil dang atanga siam a ni. "Vacuum deposition" tia sawi bawk a ni a, metal coating material chu vacuum chamber chhunga a vaporize thlengin tihlum a ni.
He chamber chhunga pressure awm lohna hian metal boiling point chu a hnuai lam hawiin a khalh a ni. Hei hian metal vapor chu condensate in i duh duh substrate chung lamah layer a siam thei a ni. Entirnan, semiconductor industry chuan vacuum deposition hmangin silicon-ah copper interconnect an dah thin.
Hetianga tih hian heating method hrang hrang a hmang thei a, chung zingah chuan plasma beam, resistance heating, leh electron beam te pawh a tel. A tawpah chuan metal layer a ni a, a thickness chu atom pakhat atanga millimeter engemaw zat thleng a ni.
Metal tha ber ber
Aluminium nena khaikhin chuan copper leh silver hian electrical conductivity an nei tha zawk a, mahse copper hi oxidation leh corrosion a hlauhawm hle a, silver erawh a man a to zawk thung. A man tlawm zawk leh reflective property tha zawk avang hian vacuum metallization atana metal material tha ber chu aluminium a la ni reng a ni.
1) Aluminum: Reflective coatings atan chuan thil hman tam ber chu aluminium a ni a, hei hian 90% reflectivity a siam thei. Industrial, commercial leh automotive lighting reflector zawng zawng hian aluminium an hmang vek a ni.
2) Copper: A conductive property tha zawk avangin shielding coating atan hman a ni tlangpui. Mahse, a hmin awlsam avangin a rawng a danglam emaw, a oxidation emaw a awm loh nan oxide layer emaw, metal dang emaw (nickel-chromium emaw stainless steel ang chi) hmanga khuh a ngai a, chuvangin he coating hi a thim bawk a, a tlangpuiin metallization chi dang aiin a let 10 zetin a thuk zawk a ni.
3) Process:Vacuum metalising process-ah chuan vacuum chamber-ah material chu a vaporize thlengin an lum a. A hmasa berin vacuum metallization hman dan pahnih han en teh.
Metalization hmanga siam chhuah dan
A hnuaiah hian metallization method chi hnih a awm a.
1. Taksa lama vapor awm (Thermal evaporation) .
Vacuum evaporation coating emaw vacuum coating emaw hian vacuum coating environment-ah coating material chu a ti lum a, hun rei lote chhungin a ti vawt thei a ni. Coating material-a evaporated molecule te chu plastic surface-ah dahin coating layer a siam a, chu chu a tlangpuiin aluminum ang chi melting point hniam metal te evaporate nan an hmang thin.
Hetiang hmanrua hi a awlsamin a awlsam a, hman a awlsam a, film siam chak leh tha tak a ni a, thin film vacuum siamna atana hman lar ber a ni.
2. Chemical vapor deposition (Sputtering) hmanga thil siam chhuah (Sputtering) .
Inert gas chu vacuum-ah a khat a, plastic substrate leh metal target inkarah high-voltage direct current a dah belh a ni. Glow discharge atanga electron lo chhuak te hian inert gas chu a tichak a, plasma a siam a, chu chuan metal target atom te chu a knock out a, plastic substrate ah a dah ta a ni. Coating film chu plastic surface-a adhesion chu evaporation coating aiin a tha zawk a, film layer pawh a dense a, a uniform bawk.
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