Description
hardware flow control. It is an ideal choice in the field of industrial automation.
The research and development, manufacturing and sales of high-end bearing steel
are basically monopolized by the world”s bearing giants Timken
of the United States and SKF of Sweden. In the past few years, they established bases
in Yantai and Jinan, Shandong Province, purchased low-end materials from China,
used their core technologies to make high-end bearings, and sold them to the Chinese
market at ten times the price. Adding rare earths during the steelmaking process can make
the original high-quality steel “stronger”. But how to add it is the core secret of the world”s bearing giants.
High-pressure plunger pump 14 “High-pressure plunger pump, a thorn in the throat of China”s
equipment manufacturing industry” (Science and Technology Daily, May 28)
The hydraulic system is one of the key components in the equipment manufacturing industry.
In all engineering fields and wherever there is mechanical equipment, the hydraulic system
is inseparable. The high-pressure plunger pump is the core component of high-end hydraulic equipment and is
called the “heart” of the hydraulic system. The scale of China”s
hydraulic industry has become the second in the world in 2017, but the industry is large but not strong,
especially high-pressure plunger pumps with rated pressures above 35MPa, more than 90% of which rely on imports.
Compared with foreign brands, domestically produced hydraulic piston pumps have a large gap in
technological advancement, working reliability, service life, variable mechanism control function and dynamic
and static performance indicators. They are basically equivalent to those produced abroad in the early 1990s. level.
Aeronautical Design Software 15″Aviation software is in embarrassment, and domestic aircraft design is
under a “tightening curse”” (Science and Technology Daily, May 30)
Since the 1980s, the world”s aviation industry has entered a new stage of digital design, and has now reached a level
of dependence that makes it impossible to design without software. Designing an aircraft requires at least a dozen types
of professional software, all of which are products from European and American countries. Domestic design units not only
have to invest huge sums of money to purchase software, but also wear steel rings on their heads. Once the “spell” is recited, the
entire aviation industry will be paralyzed. According to media reports, when the J-10 aircraft was designed, the entire metal components
of the main load-bearing structure of the main landing gear were commissioned to be manufactured abroad. But after it was built, there was
a problem with the retraction and retraction of the landing gear. There was a 5 mm error, so we had to re-order it. Just this small
error affected the delay of the J-10″s first flight by eight or nine months. Without full digital software support, any slight error may become
a nightmare for the manufacturing industry.
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2711-T10C20L1 PanelView Standard Operator terminal
1769-L16ER-BB1B CompactLogix 5370 Ethernet Controller
DKC11.3-100-7-FW Servo controller
DSTC190 57520001-ER connection unit
DSTC120 57520001-A Connection unit
DSAI110 57120001-DP analog input board
DSSB146 48980001-AP Battery module
DSSR116 48990001-FK boost voltage regulator
NTCF22 Terminal unit ABB
VE4022 KJ3243X1-BB1 Profibus module
IC695CHS007LT Slot 7 Universal backplane
IC695CPE305LT RX3i CPU
IC695PSD140LT Power module
5466-409 CPU module
8200-314 Digital Controller
ALR121-S00S1 Serial communication module
IC697PWR724F Power module
SR735-5-5-HI-485 feeder protection relay
3500/22-02-01-00 Transient data interface
3500/40-01-00 3500/40M front monitor
3500/92-0201-00 Communication gateway
TC-PCIC01 Controls the interface module
DS200GDPAG1AKF High frequency power supply board
DS200LDCCH1ANA Driver control/LAN communication board
DS200TCCBG88ED digital input/output board
TC-PRS021 Controls the processor module
TC-0DK161 Digital output PLC card
TC-FXX132 Experion 13 slot chassis
MC-TAOY22 80366177-175 Analog output board
MMS6823R Communication interface module
FBMSSW I/A series control card
XVME-660-716 The VMEbus PC is compatible with the processor module
XVME-675/19 PC/AT processor module
XVME-956/900 I/O Expansion bracket
MVI56E-GSC universal ASCII serial enhanced communication module
CE4003S2B6 Standard I/O terminal board
XVME-956/412 I/O Expansion bracket
CE4005S2B4 Standard I/O terminal board
3500/53-01 Overspeed detection module
80190-580-01-R drives the processor module
2711-B6C10 Operator terminal
3500/62-04-00 Process variable monitor
VMIVME-7645 vmebus board computer
MVME162-233 Dual-height VME module
DSAX110A 57120001-PC analog input/output board
9907-175 Load sharing module
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