Graphite packing, high-performance sealing material angin, chemical, petroleum, power, leh machinery siamna industry-ah te hman a ni nasa hle. A high-temperature leh corrosion resistance tha tak tak te bakah a self-lubricating property te hian industrial sealing system-ah key component a siam a ni. Mahse, hman dik loh chuan a chhiat phah thei a, a leak thei a, hmanrua a tichhia thei bawk. Chuvangin, graphite packing atana hman dan dik tak master hi a pawimawh hle.
1. Graphite packing thlan leh enkawl dan tur .
Graphite packing thlan dawnin, operating condition bik (temperature, pressure, leh media corrosiveness ang chi) hmanga type dik tak hriat a pawimawh. Graphite packing chi hrang hrang zingah hian expanded graphite leh impregnated graphite (resin, metal, emaw polytetrafluoroethylene hmanga impregnated ang chi) te pawh a tel. High-temperature leh high-pressure environment-te tan chuan high-purity expanded graphite emaw metal-impregnated graphite emaw chu a mechanical strength leh permeability tihpun nan a tha hle.
Graphite packing hi hman hmain uluk taka enkawl hmasak phawt tur a ni. A hmasa berin, packing integrity chu a chhe emaw, a bawlhhlawh emaw a awm loh nan enfiah hmasa phawt ang che. Pahnihnaah chuan, packing chu roll emaw block form emaw-ah a awm a nih chuan, sealing cavity dimensions-a innghatin a sei tawk angin a cut tur a ni a, chu chuan sealing effect nghawng thei tur burrs awm loh nan cut edges te chu a smooth tih a tichiang a ni. Impregnated graphite packing atan chuan impregnated layer chu a peel emaw, a chhe lo emaw tih chian tur a ni. A tul chuan a chunglam finish tha zawk nan light polishing pawh tih theih a ni.
2. Packing technique leh compression control .
Graphite packing-a packing process hian sealing performance a nghawng nghal vek a ni. Packing lai hian "layered compaction" tih principle chu zawm tur a ni a, sealing cavity chu a khat tawkin a khat vek tur a ni. Circle tina cut edge te chu 90℃-120 degree-a staggered a nih leh nih loh enfiah la, sealing barrier chhunzawm zel tur a ni. Direct manual compression awm loh nan dedicated packing hook emaw press tool emaw hman a tha a, chu chuan packing deformation pawh a ti danglam thei a ni.
Compression hi graphite packing atana parameter pawimawh tak a ni. Compression tam lutuk chuan packing hardening, friction tihpun, leh sealing surface tihchhiatna thlengin a thlen thei a; Compression tling lo chuan awlsam takin leakage a thlen thei. A tlangpuiin, initial packing compression chu axial clearance 15%-30%-ah control tur a ni a, packing chu gland hmangin optimal level-ah zawi zawiin siamrem tur a ni. Dynamic seal-ah chuan (shaft rotating emaw reciprocating rods emaw ang chi), gland bolt te chu vawi tam tak tight rawh. Tightening neih apiangin hmanrua chu operate la, stable seal a nih hma loh chuan leakage awm leh awm loh enfiah rawh.
3. Hnathawh dan, enkawl dan leh harsatna chinfel dan .
Graphite packing hian a tir lamah chuan leakage tlem a tawk thei a ni. Hei hi thil pangngai a ni a, a tlangpuiin gland chu zawi zawiin tihkhauh a ni thei. Mahse, leakage a awm reng emaw, a chhe zel emaw a nih chuan a hnuaia thil awmte hi chhui chian a ngai a ni:
1.Gland Overtistened emaw Undertightened emaw: Localized stress concentration awm loh nan bolt tightening force calibrate turin torque wrench hmang ang che.
2.Packing Wear or Aging: Hun rei tak-Term Operation hnuah chuan graphite packing chu friction emaw chemical corrosion emaw avanga hlawhchham thei a ni a, thlak reng a ngai bawk.
3.Media compatibility: Sealing medium-ah hian hard particle (slurry emaw sand ang chi) a awm chuan carbon fiber-reinforced graphite emaw composite packing emaw hmanga lubricant dah belh a tha.
Routine maintenance lai hian sealing system-ah temperature, vibration, leh leakage a awm leh awm loh enfiah fo tur a ni. Stuffing box chu a lum lutuk tih hmuhchhuah a nih chuan (a tlangpuiin friction tam lutuk vang a ni), lubrication measures \\ha tak tak (silicone oil tlemte inject ang chi) emaw, PTFE-impregnated graphite packing hmanga friction coefficient tihtlem emaw theih a ni.
4. Operating condition bik atana hman dan tur rawtna .
Graphite packing hian extreme operating condition-a hman a nih chuan fimkhur belh a ngai a (Ultra- temperature sang tak, corrosive environment sang tak, emaw nuclear radiation environment ang chi):
•Ultra-high temperature environments (>600℃): High-purity expanded graphite emaw composite metal emaw hmang la-Impregnated packing hmang la, cooling structure pawh dah tel bawk ang che.
•Media corrosive sang tak (acid leh base chak tak tak ang chi) tan chuan: chemical resistance tihchak nan graphite packing PTFE emaw ceramic coating emaw hmanga impregnated a tha zawk.
•For high-pressure sealing (>30 MPa): Multi-layer high-Density graphite packing chu auxiliary sealing atan metal bellows nen a inzawm chuan hmang ang che.
Tawpna
Graphite packing hian performance advantage pawimawh tak tak a nei a, mahse a thatna hi hnathawh dan dik leh enkawl danah a innghat nasa hle. Scientific selection, standardized filling, compression dik tak, leh regular maintenance hmangin seal life chu nasa takin a tizau thei a, equipment operation pawh him takin a awm thei bawk. Practical application-ah chuan graphite packing hman dan tur tha zawka siam turin a tul hunah working condition bikte chu inzawmkhawmin, a tul hunah material supplier emaw sealing expert emaw te biak a tha.
