powder nozzle 中文意思是什麼
powder nozzle
解釋
乾粉噴嘴-
The dried powder product was formed in the spray dryer by pressure nozzle which atomized liquid into small droplets and heat and mass transferring was performed between droplets and hot medium in the drying chamber
壓力噴霧乾燥裝置是利用壓力霧化裝置將原料液分散成細小霧滴，並與熱介質在乾燥塔內充分進行熱量、質量交換，最終達到乾燥產品的目的。 -
The results showed that the processing parameters ( such as laser power, the diameter of laser, scanning speed of laser beam, ratio of overlapping ) are important to acquire a perfect component. furthermore, in order to assure geometric properties ( accuracy, surface finish ), the structure of the off - axial powder nozzle was improved to avoid the oxidation of the molten pool. the density metal test sample of rene95 high - temperature alloy was made by lsf through optimizing the processing parameters
本文對激光立體成形的工藝特性進行了深入系統的研究，發現如果要獲得理想的成形效果，就必須對成形過程中的工藝參數進行精密控制，例如激光功率、激光光斑大小、光束掃描速度、搭接率等；同時為了保證成形件有較高的尺寸精度和表面質量，必須對成形零件的氧化問題進行控制，通過改進側向送粉噴嘴的結構設計，成形件的表面氧化問題得到適度控制。 -
As the ratio of alcohol to water descends, both of them rise. as the solution concentration of nitrates descends, the crystalline size firstly descends and then rises. the nozzle pressure brings forth little affluence on the crystalline size of the powder, but the elevated pressure can enlarge the quantity and the size of the agglomeration
隨酒精和水的比值的減小，粒徑和顆粒粒徑都增加；粒徑隨溶液濃度的減小，先減小后增加；一次粒徑隨壓力的變化，變化很小，但隨壓力和流量的增加，團聚體增多、團聚粒徑增大。 -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。
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