Graphite filler, high-performance sealing material angin, chemical, petroleum leh power industry-ah te hman a ni nasa hle. A forming process hian direct takin material density, corrosion resistance, leh mechanical strength te a nghawng a ni. He thuziak hian graphite filler forming process leh a technical point pawimawh tak takte chipchiar takin a sawi dawn a ni.
Graphite filler forming process-ah hian a bik takin pressing, extrusion, leh compression molding te a tel a ni. Compression molding hi hman tlanglawn ber a ni a, powdered emaw granular graphite raw materials atan pawh a tha hle. Hetiang hian hydraulic emaw mechanical press hmangin graphite powder chu binder nen mix la, chutah chuan temperature sang leh pressure sang tak hnuaiah duh ang chiah chiah chuan press rawh. Pressing process chhung hian final product density leh strength atan uniform pressure a pawimawh hle. Pressure hi a tlangpuiin 10 leh 30 MPa inkar a control a, binder softening leh bonding tichak turin 150 leh 300℃inkar ah temperature a awm reng a ni.
Extrusion molding hi graphite rod emaw tube emaw siam chhuah chhunzawm zelna atan a tha hle. A kalphungah hian raw material mixing, kneading, extrusion, leh drying te a tel a ni. Graphite powder leh binder (phenolic resin emaw asphalt ang chi) chu kneader-ah uluk takin an pawlh a, plastic slurry inang tlang tak an siam a. He slurry hi die hmangin cross-sectional shape bik ah extrude a ni. Extrusion molding hian mold design sang tak a mamawh a, chu chuan slurry flow inang tlang tak a neih theih nan leh a chhunga chhiatna a awm loh nan a pui a ni. Molded product hian high-temperature calcination a paltlang a, binder atanga volatile components te chu a paih chhuak a, graphitization a tichak bawk.
Compression molding hi complex-shaped graphite seals tan a tha a, chu chu gasket emaw annular packings emaw a ni. Hetiang hian graphite powder leh binder chu ratio tling takah mix a, chu mixture chu preheated metal mold-ah fill-in, chuta tang chuan press hmangin mold-ah pressure dah a ni. Compression molding atana pawimawh ber chu delamination tel lova dense internal structure a awm theih nan heating rate leh dwell time control a ni. Calcination temperature hi a tlangpuiin 800℃leh 1200℃inkar a ni a, chu chuan graphite filler-a high-temperature resistance leh chemical stability a ti sang lehzual a ni.
Binder thlan hian graphite fillers molding process-ah pawh chanvo a nei a ni. Binder hman tlanglawn tak takte chu resins, metal oxides, leh asphalt te an ni. Binder hrang hrang hian material-a thermal conductivity, corrosion resistance, leh mechanical strength te a nghawng a ni. Entirnan, phenolic resin hi medium- leh low-temperature environment tan a tha a, metal binder (copper powder ang chi) te hian filler-a wear resistance leh thermal conductivity a ti tha thei thung.
A tawi zawngin, graphite filler molding process chu raw material characteristics, application mamawh, leh hmanrua dinhmunte a zirin a tha thei ang bera siam a ngai a ni. Pressure, temperature, leh binder ratio dik taka control a nih chuan, high-performance graphite sealing materials chu industrial demands for corrosion-resistant, high-temperature-resistant, leh long-life sealing solutions te phuhruk nan siam theih a ni.
