下面介紹離心泵的幾條重要的性能曲線。水泵的性能參數(shù)如流量Q揚程H軸功率N轉(zhuǎn)速n效率η之間存在的一定的關(guān)系。他們之間的量值變化關(guān)系用曲線來表示,這種曲線就稱為水泵的性能曲線。水泵的性能參數(shù)之間的相互變化關(guān)系及相互制約性:首先以該水泵的額頂轉(zhuǎn)速為先決條件的。水泵性能曲線主要有三條曲線:流量—揚程曲線,流量—功率曲線,流量—效率曲線。流量—揚程特性曲線它是離心泵的基本的性能曲線。比轉(zhuǎn)速小于8的離心泵具有上升和下降的特點(既中間凸起,兩邊下彎),稱駝峰性能曲線。
產(chǎn)品行業(yè)全國各省市、獲得用戶一致好評;
AB:PLC系列;2711P觸摸屏
ABB:機器人備件、DCS卡件;
施耐德:140/TSX系列模塊、軟啟動器、變頻器、觸摸屏;
西門子:6ES7-300/400/200系列PLC模塊、變頻器、交換機、觸摸屏、電機等部分產(chǎn)品爆款;
海量到貨,充足庫存,優(yōu)惠的價格,抓緊下單吧!
鴻飛達(dá)-小葉 QQ:2851617301 電話:15306977014
郵箱:2851617301@qq.com
公司名稱:福建鴻飛達(dá)自動化科技有限公司
公司地址:福建省福州市高新區(qū)烏龍江大道正榮財富中心SOHO 3座八層
ALLEN BRADLEY 2364-SPE01A / 2364SPE01A (NEW IN BOX)
ALLEN BRADLEY 1336-F1-SP13A / 1336F1SP13A (NEW IN BOX)
Allen-Bradley 800T-A2D1 Series T Push Button Black Flush Head 1NO ! WOW !
ALLEN BRADLEY 815COV169 / 815COV169 (Surplus New In Box)
ALLEN BRADLEY 151133 / 151133 (Used)
ALLEN BRADLEY 102840 / 102840 (USED TESTED CLEANED)
ALLEN BRADLEY 1772-LWP / 1772LWP (Used)
ALLEN BRADLEY 195-FA04 ADD ON CONTACT BLOCK W14
ALLEN BRADLEY 119527 / 119527 (USED TESTED CLEANED)
ALLEN BRADLEY 104-A12ND3 / 104A12ND3 (USED TESTED CLEANED)
ALLEN BRADLEY 2090-XXNPMP-14S20 / 2090XXNPMP14S20 (Surplus New In Box)
ALLEN BRADLEY 20AD2P1A3AYNAENN / 20AD2P1A3AYNAENN (USED TESTED CLEANED)
ALLEN BRADLEY 20AC3P5A3AYNANNN / 20AC3P5A3AYNANNN (USED TESTED CLEANED)
ALLEN BRADLEY 8520-ETCP / 8520ETCP (USED TESTED CLEANED)
ALLEN BRADLEY N54 U N/AA 600V USED
ALLEN BRADLEY 20BD011A3NYNAEC1 / 20BD011A3NYNAEC1 (USED TESTED CLEANED)
Allen Bradley Drive Control Board, 42305-053-51G, Used, WARRANTY
ALLEN BRADLEY 140M-D8N-B40 / 140MD8NB40 (NEW IN BOX)
ALLEN BRADLEY AUXILIARY CONTACT BLOCK 40768-451-06
ALLEN BRADLEY 3100-CPU / 3100CPU (USED TESTED CLEANED)
Siemens 6ES7-314-6CG03-0AB0
SIEMENS 6RB2160-OFB00
SIEMENS 6ES5-373-0AA41
Siemens 6ES7135-4FB01-0AB0 《福建鴻飛達(dá)誠信延續(xù)超低價》
SIEMENS 6ES7132-4BB01-0AB0
Siemens 6ES7195-1GA00-0XA0
SIEMENS 3RV1-021-1GA10
SIEMENS 6ES5-700-1LA12
Siemens 505-6511
Siemens 6ES7277-0AA22-0XA0
SIEMENS 6EP1931-2EC21
SIEMENS 6FX1128-1BA00
SIEMENS 6SL3040-0MA00-0AA1
SIEMENS 6ES7232-0HB22-0XA0
SIEMENS 6ES7-193-1CH00-0XA0
SIEMENS 6ES5-376-1AA31
SIEMENS 6ES7194-1KA01-0XA0
SIEMENS 6SE6400-1PB00-0AA0 《福建鴻飛達(dá)誠信延續(xù)超低價》
SIEMENS 6SC6170-0FC01
SIEMENS 545-1101
SIEMENS 6SE7-018-0ES87-2DA0
SIEMENS 6ES7131-4BD00-0AA0
Siemens 6GK1502-3BA00
Siemens 8WA1011-1BF21
Siemens 6ES7921-3BE10-0AA0
7381A66G04西屋WDPF FTC光纖板(7381A66G04)
7381A81G01西屋WDPF MDM板(7381A81G01)
7381A81G02西屋WDPF MDM板(7381A81G02)
7381A81G03西屋WDPF MDM板(7381A81G03)
7381A83G01西屋WDPF MSE板(7381A83G01)
7381A83G02西屋WDPF MSE板(7381A83G02)
7381A86G01西屋WDPF NL-1032 120VAC模塊(藍(lán)色塑料)(7381A86G01)
7381A87G01西屋WDPF NL-1062 120VAC模塊(藍(lán)色塑料)(7381A87G01)
7381A88G01西屋WDPF MD板(7381A88G01)
7381A93G01西屋WDPF MHC板(7381A93G01)
7381A93G03西屋WDPF MHC板(7381A93G03)
7381A93G04西屋WDPF MHC板(7381A93G04)
7381A93G05西屋WDPF MHC板(7381A93G05)
7381A94001西屋WDPF MUT PC終端(7381A94001)
7381A94G02西屋WDPF MUT PC未端接(7381A94G02)
7412C33G01西屋WDPF雙風(fēng)扇組件輸入(7412C33G01)
486西站柜內(nèi)的7412C33G02西屋WDPF雙風(fēng)扇組件(頂部)(7412C33G02)
772B216G01西屋WDPF SBC配置板(772B216G01)
772B216G02西屋WDPF SBC配置板(772B216G02)
772B216G03西屋WDPF SBC配置板(772B216G03)
在磁選分離出的黃銅礦顆粒中未發(fā)現(xiàn)磁黃鐵礦和方黃銅礦這類磁性礦物的微細(xì)包體。為了研究這種因素,測定了在加熱時黃銅礦的磁性變化。試驗是用處理馬列耶夫斯克多金屬礦石獲得的銅精礦進行的。煅燒溫度為2~4℃。試驗結(jié)果表明,黃銅礦的磁化系數(shù)隨煅燒溫度的升高而增大(見表1)。顯微鏡觀察表明,加熱后的黃銅礦并未形成新的礦物。這樣,通過提高變質(zhì)礦區(qū)的礦物磁化系數(shù),可以分離出含磁性黃銅礦的礦石,并將它們單獨處理。
特別聲明:以上內(nèi)容(如有圖片或視頻亦包括在內(nèi))為自媒體平臺“機電號”用戶上傳并發(fā)布,本平臺僅提供信息存儲服務(wù)
Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of JDZJ Hao, which is a social media platform and only provides information storage services.