1747-AIC（A-B）
1747-AIC
超級螺栓多頂推預緊器在大直徑螺栓緊固時可以提供高的預緊力，通過頂推螺釘擰入螺母主體的方法，將高的預緊力分解為可以控制的安裝扭矩來實現。與六角螺母相比，超級螺栓很容易安裝，即使在很大的尺寸。
多頂推預緊器（MJTs）與其他常見緊固方法相比有許多好處。快速、安全、易于安裝！
a.預緊力精確：
預緊力過大會導致緊配螺柱或螺栓損壞，預緊力接近或小于承受負載時，緊配螺柱或螺栓會出現松動。因此，準確設定緊配螺柱或螺栓預緊力十分重要。
多級頂推聯接緊固器的頂推螺栓1的尺寸和數量同預緊力成正比，也就是說設定多級頂推聯接緊固器的預緊力，同頂推螺栓的扭矩有直接的關系，調節頂推螺栓可提高預緊力精確，多級頂推聯接緊固器預緊力精度可達90-95％，比任何傳統緊固方法預緊力精度都準確得多。可實現聯接件的精確對中，可彌補聯接緊固器與聯接件的接觸面到聯接孔中心線垂直度的微小偏差。
b.張力均勻：
多級頂推聯接緊固器的張力變化很小（±5％），通過使用多級頂推聯接緊固器的頂推螺栓使法蘭接合處保持均勻的壓力，防止偏轉。它們與聯接孔結合均勻，防止緊配螺柱或螺栓受力不均，提高聯接件可靠性。
c.彈力豐富：
采用錐形的彈性套。多級頂推聯接緊固器可使聯接系統的彈性增加2個螺栓直徑的當量，對于一般聯接系統，相當于彈性增加50-100％。由于蠕變在一定的溫度下以均勻的速度出現，彈性增大將大大延長高溫連接的緊配螺柱或螺栓的使用壽命。由于多級頂推聯接緊固器的彈性套具有較好彈性，能在一定膨脹范圍內使用，互換性好，并且對孔的加工要求不高，可以減輕孔加工強度。由于彈性套具有高彈性，經多次使用后仍能彈回來原來尺寸，拆裝中避免了傳統鉸制螺栓或螺栓孔拉傷的現象，所以多級頂推聯接緊固器可重復使用。
1747-AIC
3COM, 3CR17761-91-US SWITCH 4500G 24-PORT
3Com SuperStack II Switch 3300 3C16981 12-Port
3COM 3CRNJ240FXSCTAA?-75 IntelliJack Switch NJ240FX SALE
Linksys PSUS4 Switch/Print Server - 3Com 5-Port Hub
3COM 3C16475BS Baseline Switch 2226 24 10/100 ports
3COM SWITCH 5500EI 48PT 10/100 + 4 SFP 3CR17162-91-US
3COM SUPERSTACK II 12-PORT SWITCH 3C93012
3COM SWITCH BASELINE 2848-SFP PLUS EN 1GBPS 3C16486
3COM 3C1671600A OfficeConnect Gigabit Switch 16 ports
3COM OfficeConnect Dual Speed 5 Port Switch
3COM 48 PORT SWITCH 5500 G-E1 3CR17251-91-US
3Com Gigabit (3CGSU08) 8-Ports External Switch
3COM 3CR17341A-91 Switch 4210 PWR 9-Port Layer 2
3Com 3CB9EME Switch 4007 Management Module
3Com 24-Ports External Switch plus gigabit 10/100/1000
3COM 3CR1752191 Switch 8800 Advanced Feature
3COM SuperStack 3 Switch 3300 XM 24-Port 3C16985B
3COM 3CRWX120695A Wireless LAN Switch WX1200 Six 10/100
3COM 3C16475CS Baseline Switch 2226 10/100 PORTS SALE!
3Com SuperStack 3 3CR17572-91 Switch 4500 PWR 50-Port
3COM 3C16988A SuperStack 3 Switch 3300 MM 24 Port SALE
3COM 3C16988A SuperStack 3 Switch 3300 MM 24 Port
3COM 4070 24-PORTS SWITCH 1000BASE-SX 1000BASE 3C17707
3Com Switch 7700R Starter Kit - switch
3Com 3300XM 24 Port Network Switch With Ears 3C16985B
3Com Baseline 2816 GB 16 Ports Switch 3CBLUG16-US
3Com SS3 Switch 3824 24 Port Gigabit + 4 SFP 3C17400
3Com Switch 4005, 16828 16829 16824 16825 16827
3COM 4070 24-PORTS SWITCH 1000BASE-SX 1000BASE 3C17707
3COM 3C16980-3300 SUPERSTACK II SWITCH 24 PORT
3COM 48-ports SWITCH 5500-SI 3CR17152-91-US
3 COM SuperStack3 Network Switch 4228G
3Com (3CR17254-91) 24-Ports Switch + 3C17261 XENPAK
3COM 3CRS48G-24S-91 Switch 4800G 24-Port 100/1000 SFP
3 Com SuperStack II 24 Port Switch 3300 XM 3C16985
3com 3CR17771-91-US SWITCH 4500G PWR 24-PORT
3Com 3 3C17203 US 24-Port Ethernet External Switch NICE
3Com IntelliJack Gigabit Switch NJ2000
3COM 3C16470B Baseline Switch 2016 16 ports 10/100ports
3Com IntelliJack Gigabit Switch NJ2000
3 COM SuperStack3 Network Switch 4250T 48 Port
3COM 3CR17333-91 Switch 4210 26-Port GREAT DEAL!!!
3Com Unified Gigabit Wireless POE Switch 24
3Com SuperStack 3 Switch 3300 XM - switch - 24 ports
3COM BASELINE (3C16476CSUS) 48-PORT SWITCH LOW USE
3COM 3C16893 Switch 7700 Power Cord Resiliency Kit 220V
3COM BASELINE GIGABIT SWITCH MODEL#3C16468
3com superstack 2 1100 switch 24 ports
3COM Baseline Switch 2024 3C16471
3COM 3CRS48G-24S-91 Switch 4800G 24-Port 100/1000 SFP
3COM 3C16440 SUPERSTACK II SS2 12 PORT SWITCH
3COM 3C16475A Baseline Switch 2226 RJ-45 24-port
3Com Switch 4060 6 x gigabit, 6 x GBIC, 12 x Gb fibre
3com 3CR17772-91-US SWITCH 4500G PWR 48-PORT
3Com 3CR17571-91-US 26-Port 4500 Pwr Switch
3Com 3C17224 SuperStack 3 Switch Cascade Module
3COM 3CR17258-91 Switch 5500G-EI 24-Port SFP HUGE SALE!
3C16477 Gigabit Switch Super Stack 3 Networking 3COM
3COM 7700 SWITCH CHASSIS & MODULES 3C16858 3C16859 !!!!
3Com 3CR17562-91-US 4500 50Port Switch
3COM SUPERSTACK II PORT SWITCH HUB CASCADE 3C16420
3COM 3C17206 SuperStack 3 Switch 4400 SE 24-Port SALE
3COM SWITCH MODULE 7700R ETHERNET 10/100MBPS 3C16857R
3COM BASELINE GIGABIT SWITCH MODEL#3C16477
3Com Switch 4500 PWR 50-Port 3CR17572-91-US
3COM SWITCH 7700 4-SLOT 1000BASE-X FABRIC 3C16874
3COM 3CNJ225FX-SC IntelliJack Switch NJ225 FX-SC
3COM SWITCH 4007 DOCUMENTATION KIT 3C16803
3COM 3CR17343-91 Switch 4210 PWR 26-Port GREAT DEAL!!!
3COM SUPER STACKII SWITCH 3300.Power Cord
3COM SWITCH MODULE 7700 ETHERNET 10/100MBPS 3C16860
3COM 3CR17671-91 Switch 4200G PWR 24-Port
3COM 3C16475BS Baseline Switch 2226 Plus 26 Port Switch
3COM SUPPER STACK II HUB SWITCH
3Com 3C16476BS Baseline Switch 2250 PLUS 1647-610
3Com 24 Port Switch 4400 Super Stack
3 COM SuperStack3 Network Switch 4226T 24 Port
3Com Super Stack II Baseline 24 Port Switch
3Com Office Connect 8 Port Dual Speed Switch w/ adapter
3Com SuperStack II Switch 100BASE-FX Module 3C16970
3Com Baseline Switch 2426-PWR Plus 3CBLSF26PWR PoE
3COM 3CRS42G-48-91 Switch 4210G 48-Port 10/100/1000
3COM 3C17302-US SuperStack 3 Switch 4250T 48-Port
3COM 3CR17772-91 Switch 4500G PWR 48-Port SALE
3COM 3C17210 SuperStack 3 Switch 4400 FX 24 ports SALE!
3COM 3CR17343A-91 Layer 10/100 LAN Switch 26-port
3COM SUPERSTACK II SWITCH 3900 MODEL 39036 36 PORTS
3COM SWITCH COREBUILDER 9000 ETHERNET 3CB9LG9MC
3Com SuperStack 3 3C17206 Switch 4400 SE 24 Ports
3COM 16472 2126-G Switch
3Com 24 Port Switch 3300
3Com 3C17203 SuperStack 3 Switch 4400 24-port 3C17224
3com 3CB9LF20R Corebuilder 9000 20 Port Switch
3COM 3CR17280-72 Switch 5500G Open Services Module OSM
3COM 3C17302A Superstack 3 switch 4200 50-Port
3COM SUPER STACK 3 SWITCH 4900 SX WITH 12 PORTS 3C17702
3Com Switch 3300 SM 24 Port
3COM 3C17502A Switch 8807 Starter Kit GREAT DEAL!!!
3Com Switch 7700 8-Slot AC 64G Kit 3c16852
3COM SuperStack3 Baseline 10/100 Switch Plus Gigabit
3COM 3C16792B OfficeConnect Dual Speed Switch 16 ports
3COM SuperStack II Switch 3300 24 Port 3C16981
3Com Baseline Switch 2016 16 Port Ethernet Switch
3COM 3C17707 Switch 4070 24 SFP slots RJ-45 SALE!
3COM Base Line 48 Port Switch 2848-SFP Plus (3C16486)
3COM SWITCH 7700 ETHERNET 1000MBPS 8-PORTS 3C16859
在線咨詢 
