發(fā)那科機械備件A05B-2018-0034
為降低混凝土用水量，降低水膠比，降低單方混凝土水泥用量。在配制混凝土時宜選擇強度相同、標準稠度用水量較低的水泥，提高混凝土的強度和耐久性。粉煤灰的需水量粉煤灰可分為Ⅰ級、Ⅱ級、Ⅲ級三個等級，粉煤灰需水量比是指摻3%粉煤灰膠砂用水量與基準水泥砂漿用水量之比，粉煤灰需水量的大小直接影響混凝土用水量的大小，進而影響混凝土的強度與耐久性。隨著粉煤灰需水量比的增加，混凝土拌合物要達到相同的坍落度，拌和用水量也會相應增加。
MVME172-233
MVME172-233A
MVME172-243
MVME172-243A
MVME172-253
MVME172-253A
MVME172-263
MVME172-263A
MVME172-303
MVME172-303A
MVME172-313
MVME172-313A
MVME172-323
MVME172-323A
MVME172-333
MVME172-333A
MVME172-343
MVME172-343A
MVME172-353
MVME172-353A
MVME172-363
MVME172-363A
MVME172-373
MVME172-373A
MVME172-410
MVME172-410A
51400978-100 Processor (early version)
51400988-100 US Touchscreen, Smart
51400988-200 US Touchscreen, Smart, CE
51400997-100 PLC Gateway Interface博大精深 同心致遠
51400997-200 Enhanced PLC Gateway I/F
51401052-100 SPC Card
51401072-200 QMEM-2
51401072-300 3 M-Word Enhanced Memory博大精深 同心致遠
51401088-100 CNI - Interface for PLNM
51401163-100 Process Network Modem-NIM
51401286-100 EPDG Interface Card
51401286-100 EPDG Interface Card博大精深 同心致遠
51401288-100 68020 w/2 Meg
51401288-200 68020 w/3 Meg
51401291-100 LCN I/F
51401291-100 Low Power LCN (LLCN) 博大精深 同心致遠
51401496-100 Dual Node Fan Assembly
51401497-100 Dual Node Power Supply
51401551-200 68020 w/2 Meg
51401551-300 68020 w/3 Meg博大精深 同心致遠
51401551-400 68020 w/4 Meg
51401551-600 68020 w/6 Meg
51401551-800 68020 w/8 Meg
51401560-100 QWERTY Membrane Keyboard博大精深 同心致遠
ABB微型斷路器S203-D63
ABB微型斷路器S204-D0.5
ABB微型斷路器S204-D1
ABB微型斷路器S204-D2
ABB微型斷路器S204-D3
ABB微型斷路器S204-D4
ABB微型斷路器S204-D6
ABB微型斷路器S204-D10
ABB微型斷路器S204-D16
ABB微型斷路器S204-D20
ABB微型斷路器S204-D25
ABB微型斷路器S204-D32
ABB微型斷路器S204-D40
ABB微型斷路器S204-D50
ABB微型斷路器S204-D63
ABB微型斷路器S201-D0.5
ABB微型斷路器S201-D1
ABB微型斷路器S201-D2
ABB微型斷路器S201-D3
ABB微型斷路器S201-D4
ABB微型斷路器S201-D6
ABB微型斷路器S201-D10
ABB微型斷路器S201-D16
ABB微型斷路器S201-D20
ABB微型斷路器S201-D25
ABB微型斷路器S201-D32
ABB微型斷路器S201-D40
ABB微型斷路器S201-D50
ABB微型斷路器S201-D63
ABB微型斷路器S202-D0.5
ABB微型斷路器S202-D1
ALLEN BRADLEY 291E-FAZ-G1-3FR / 291EFAZG13FR (NEW NO BOX)
ALLEN BRADLEY 872C-A10C18-A2 / 872CA10C18A2 (USED TESTED CLEANED)
ALLEN BRADLEY 961454 / 961454 (USED TESTED CLEANED)
ALLEN BRADLEY 871TM-BH2N12-B4 / 871TMBH2N12B4 (USED TESTED CLEANED)
ALLEN BRADLEY 32A24 / 32A24 (USED TESTED CLEANED)
ALLEN BRADLEY 855T-B10YL3 / 855TB10YL3 (USED TESTED CLEANED)
ALLEN BRADLEY 193206-A01 / 193206A01 (USED TESTED CLEANED)
ALLEN BRADLEY 50906 / 50906 (USED TESTED CLEANED)
ALLEN BRADLEY CF-271 / CF271 (NEW NO BOX)
ALLEN BRADLEY 1610L-T0220SA1 / 1610LT0220SA1 (NEW NO BOX)
ALLEN BRADLEY 140-L2 / 140L2 (NEW NO BOX)
ALLEN BRADLEY GA-473 / GA473 (Used)
ALLEN BRADLEY 190-P024R / 190P024R (RQANS1)
ALLEN BRADLEY 1777-IB / 1777IB (USED TESTED CLEANED)
ALLEN BRADLEY 871TM-DH2NN12-D4 / 871TMDH2NN12D4 (RQANS1)
ALLEN BRADLEY 100S-D110A22C / 100SD110A22C (NEW NO BOX)
ALLEN BRADLEY 1799-D10U10BL / 1799D10U10BL (USED TESTED CLEANED)
ALLEN BRADLEY 801-ASC27 / 801ASC27 (USED TESTED CLEANED)
ALLEN BRADLEY 60-2668 / 602668 (USED TESTED CLEANED)
ALLEN BRADLEY 1771-CX5 / 1771CX5 (NEW IN BOX)
ALLEN BRADLEY 205-BOG / 205BOG (USED TESTED CLEANED)
ALLEN BRADLEY 91886 / 91886 (USED TESTED CLEANED)
ALLEN BRADLEY 1798-BP4 / 1798BP4 (USED TESTED CLEANED)
ALLEN BRADLEY 440E-E25010 / 440EE25010 (USED TESTED CLEANED)
ALLEN BRADLEY 197-FLA2 / 197FLA2 (RQANS1)
ALLEN BRADLEY 855T-BSPM60 / 855TBSPM60 (USED TESTED CLEANED)
ALLEN BRADLEY 855BS-N24DH5 / 855BSN24DH5 (USED TESTED CLEANED)
ALLEN BRADLEY 285-BRC25-M6 / 285BRC25M6 (RQANS1)
ALLEN BRADLEY CWEB4-VS2 / CWEB4VS2 (RQANS1)
ALLEN BRADLEY 440E-D13124 / 440ED13124 (USED TESTED CLEANED)
ALLEN BRADLEY 42JT-B2LAT2-P4 / 42JTB2LAT2P4 (USED TESTED CLEANED)
ALLEN BRADLEY 500F-COD-93 / 500FCOD93 (USED TESTED CLEANED)
ALLEN BRADLEY 610936-01 / 61093601 (USED TESTED CLEANED)
ALLEN BRADLEY 802T-W4A / 802TW4A (Surplus New In Box)
液－固兩相流介質：進入平衡盤、平衡鼓等平衡機構的介質壓力為泵的輸出壓力，通過節(jié)流后的壓力為泵的進口壓力，介質從高壓區(qū)向低壓區(qū)流動時形成噴射沖刷，液－固兩相流介質中的固體顆粒會很快磨蝕壞平衡機構的平衡盤、座等動、靜零件，終泵不能正常運行。撓度多級離心泵泵軸撓度過大，容易引起異常振動、抱軸、機械密封密封面受力不均亦致失效等故障，應該從設計上控制徑向力的產生，盡量減少泵軸在運行中的撓度值。在設計方面考慮的措施一般有：a)采用蝸殼結構進行導流和能量轉換的多級泵，蝸殼形狀的不對稱在運行中容易使軸彎曲，應將相鄰兩級蝸殼錯開18布置來減少徑向力。
