Valve casting hian chhiatna a siam awlsam hle

1. A stomata (stomata) te

Hei hi gas atanga siam cavity te tak te a ni a, chu chu metal solidification process chu metal chhungah a chhuak lo. A chhung lam bang hi a hrual a, gas a awm a, hei hian ultrasonic wave-ah reflectivity sang tak a nei a, mahse a bul berah chuan spherical emaw ellipsoid emaw a nih avangin point defect a ni a, hei hian a reflection amplitude a nghawng a ni. Ingot chhunga air hole chu forging emaw rolling emaw hnuah area defect-ah a flattened a, hei hi ultrasonic detection hmanga hmuh a hlawkthlak hle.

2. Clip slag tih a ni

Smelting process-a slag emaw, furnace body-a refractory emaw chu liquid metal-ah a peel a, a leih dawnin casting emaw steel ingot-ah a inrawlh a, slag clamp defect a siam a ni. Slag hi a tlangpuiin a awm mai mai lo va, a tam zawk chu dense state-ah emaw, depth hrang hrangah a darh zau emaw a, volume defect nen a inang a, mahse linearity engemaw zat a nei fo thin.

3. Casting crack (Crack) te

Casting-a crack hi a chhan ber chu metal cooling solidification-a shrinkage stress hian material chakna tawp ber a pelh vang a ni a, chu chu casting design leh casting process pianzia nen a inzawm a, chubakah metal material-a bawlhhlawh thenkhat (sulphur content sang, cold brittleness, phosphorus content sang, etc.) cracking sensitivity nen pawh a inzawm bawk. Spindle-ah pawh shaft crystal-ah pawh crack a awm ang a, a hnu lama billet forging-ah chuan forging chhunga crack angin forging-ah a awm reng ang.

4. Vun chu phelh rawh

Hei hi ladle atanga ingot casting ingot thlenga steelmaking a ni a, a chhan chu pouring interruption, pause, liquid metal surface-a theh luh avanga air rapid cooling form oxide film, liquid metal-a theh thar chuan ingot body-ah a rawn lut ang a, hierarchical (area) defects a siam ang a, chu chu a hnu lama ingot billet forging-ah chuan forging a ni lo.

5. Anisotropy tih a ni

Casting emaw ingot emaw chu a lum a, a solidified chuan a chunglam atanga a lai lam thlenga lum chakna a danglam a, chuvangin crystallization tissue hrang hrang a lo awm ang a, hei hian mechanical property anisotropy a lantir a, chubakah acoustic property anisotropy a thlen bawk a, chu chu a lai atanga a chunglam thlenga sound velocity leh sound attenuation hrang hrang a awm tihna a ni. He anisotropy awmna hian ultrasonic detection neih chhunga assessed defects te size leh position ah nghawng tha lo tak a nei thei a ni.

Chu bakah, Tianjin Tanggu Water Seal Valve Co., Ltd. hi technology lama hmasawn tak elastic seat valve puitu enterprise te a ni a, a thil siamte chuelastic seat wafer butterfly valve hmanga siam a ni, lug hnim hring valve, double flange concentric butterfly valve, double flange a awm bawkeccentric butterfly valve a ni, balance valve, wafer dual plate check valve, .Y-Strainer a nileh a dangte. Tianjin Tanggu Water Seal Valve Co., Ltd. ah hian industry standard sang ber nena inmil first-class product kan pe thei hi kan chhuang hle. Valve leh fitting hrang hrang kan neih avangin i tui system atana solution tha ber kan pe thei ang tih i ring thei ang. Kan thil siam chungchang leh kan tanpui theih dan tur hriat duh chuan vawiin hian min rawn biak theih reng e.