Graphite packing hi sealing material pawimawh tak angin, industrial field-ah hian shaft rotating, reciprocating components, leh static sealing application-ah te hman a ni nasa hle. A hnathawh dan chu graphite-a physical leh chemical property danglam tak atanga siam a ni. Structural design leh operating conditions nena inmil taka insiamrem theihna hmangin sealing tha tak leh wear resistance inkara balance a nei thei a ni. He article hian graphite packing-a material property te, a sealing mechanism te, operating conditions tichhe thei thil te, leh typical application scenario te a sawi dawn a ni.
Graphite packing-a thil neih (material properties) leh a hnathawh bulpui ber berte .
Graphite packing-a thil pawimawh ber chu a tlangpuiin graphite tihzauh emaw, graphite flexible emaw a ni. Natural flake graphite (intercalation ang chi) chemical hmanga enkawl a, chu chu temperature sang taka tihzauh hmanga siam a ni. Hetiang hian graphite layer te inzawmna chu a tichak lo va, expanded graphite worms chu a lo chhuak a, a lo chhuak a, a lo chhuak a, a lo chhuak a, a lo chhuak a, a lo chhuak a. Chumi hnuah chuan heng rulhut te hi press emaw molded emaw a ni a, packing ring emaw rope emaw ah chuan flexibility leh compressibility℃engemaw chen neiin an press emaw mold emaw a ni.
Key performance attribute hrang hrangte chu:
1. Self-Lubrication: Graphite crystal layers awlsam takin a slip a, chu chuan coefficient of friction a hniam (a tlangpuiin 0.05-0.15), lubricant dang mamawh lovin seal surface wear a tihtlem phah a ni.
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3. Chemical inertness: Graphite hi acid tam zawk, base, leh organic solvent tam zawkah chuan inert a ni a, media chak taka oxidizing (concentrated sulphuric acid leh nitric acid ang chi) ah chauh a soluble a, corrosive operating conditions atan a tha hle.
4. Compressibility leh resilience: Compressibility control (a tlangpuiin 20%-30%) hmangin filler chu axial pressure hnuaiah radial-in a deform thei a, sealing gap chu a fill thei a, initial sealing force a siam thei bawk.
