35results about How to "Reasonable service life" patented technology

A corrosion resistant automatic splice having a housing with opposed first and second ends, an interior cavity between the ends, and a plurality of drainage openings disposed between an exterior surface of the housing and the interior cavity. The first and second ends are each adjacent a biasing member or spring. A semi frustoconical gripping jaw or clamp is located at each of the first and second ends adapted for receiving a cable. The drainage openings aid in voiding corrosive contaminants from the interior cavity of the splice.

The present invention discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature. The present invention also discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature; the present invention can ensure the sufficient burning of fuel and the heating quality of the ladle; the present invention can thoroughly remove the defect that the smoke and dust will pollute the environment and the energy-saving effect is obvious.

The invention provides a one-piece sea wave electric generator. The one-piece sea wave electric generator comprises power supply boxes, floatation-promotion boxes used for the power supply boxes, electric generator body stands, floatation-promotion boxes used for the electric generator body stands, storage batteries, electric generator bodies and one-piece turning wheels. The one-piece sea wave electric generator has the beneficial effects that the application range is wide, and the one-piece sea wave electric generator basically can be suitable for meeting the electricity generation requirements of various sorts of different sea areas; manufacturing cost is low, and modular production or industrial production can be realized; installation is convenient and fast; generating efficiency is high, the problem that electricity utilization is difficult at special areas is solved, the problem of seawater corrosion or the problem that the service life of a generating set is short can be solved, and the basic fixation problem of the position of the generating set is also solved; the problems of consistency of the generating device and the sea wave direction and automatic adjustment are solved; the problem that an anchor chain or an anchor cable does not generate tractive force towards the seabed to the generating set is solved, and the problem that cables are connected with seabed, island and land power grids by the aid of the anchor chain or the anchor cable is further solved; the problem of being poor in wave-wind resistance due to the fact that the size of a floating ball is excessively large is solved, and the adverse impact on the generating set by sea wave strength is weakened; and application and popularization are facilitated.

The invention discloses a barreled water tray which comprises a tray body. The two sides of the tray body are each provided with two concaved lift handles; circular barrel base grooves distributed in a rectangular array are formed in the upper surface of the tray body; the back surface, corresponding to the barrel base grooves, of the tray body is provided with barrel neck grooves; the barrel base grooves and the barrel neck grooves are communicated through communicating holes. The barreled water tray is reasonable in structural design and convenient to use, assemble and disassemble; in the transportation process, bases and barrel necks of mineral water barrels are both fixed, displacement cannot occur, and therefore the technical problems that in the prior art, the mineral water barrels are inconvenient to transport and prone to be broken are effectively solved.

The invention discloses an assembled mould structure with self-contained sliding core power, which comprises a fixed mould and a movable mould matched with each other, wherein the working face of the movable mould is encrusted with movable mould units, the middle part of each movable mould unit is provided with a movable cavity, and the periphery of each movable mould unit is provided with three sets of sliding core units at an interval of equal radian along the center of the movable cavity; each sliding core unit is equipped with a slide block, and the external end side of the slide block isprovided with an obliquely arranged hollow lantern ring; the contact face of the fixed mould is embedded with fixed mould units, the middle part of each fixed mould unit is provided with a fixed cavity, and the periphery of each fixed mould unit is provided with three sets of driving units at an interval of equal radian along the center of the fixed cavity; and each driving unit is internally equipped with a protruded and obliquely arranged driving shaft. The assembled mould structure of the invention has the advantages that: by using the structure of splicing inclined shafts and sleeves, theoperation of the slide blocks can be realized without other external power; the same module is equipped with four sets of module units; the processing efficiency is high; and all units are in bolted connection, so the maintenance is quick and convenient.

A mandrel screw-on machine pre-screwing and auxiliary machine device comprises a PLC control system and further comprises a rotating pre-screwing mechanism, a double-carrier-roller mechanism, pull rod driving mechanisms and supporting carrier roller mechanisms, wherein the rotating pre-screwing mechanism and the double-carrier-roller mechanism form a pre-screwing mechanism assembly, inlet and outlet mechanism assemblies which are respectively composed of each pull rod driving mechanism and a plurality of sets of the supporting carrier roller mechanism are arranged at the two ends of the pre-screwing mechanism assembly respectively, the pull rod driving mechanisms are connected with the plurality of sets of supporting carrier roller mechanisms through pull rods, and the rotating pre-screwing mechanism, the double-carrier-roller mechanism, the pull rod driving mechanisms and the supporting carrier roller mechanisms are all connected with the PLC control system. The mandrel screw-on machine pre-screwing and auxiliary machine device solves the problem that imported equipment is relied at present, fills in gaps in mandrel screw-on equipment localization, and particularly solves the technical problem that a mandrel with a phi 460mm large diameter can not be screwed in a standard mode.

Provided are a biodegradable fiber-reinforced super-hydrophobic friction material and a preparation method thereof. The material is prepared from, by weight, 21-27% of biodegradable corn straw fiber and Lapinus fiber, 8-15% of super-hydrophobic pine shell and cotton straw mixed powder, 8-11.5% of polyvinyl alcohol modified phenolic resin, 5-8.5% of crystalline potassium titanate, 0-12% of crystalline flake graphite, 6-30% of wollastonite, 1-8% of brown fused alumina, 8-20% of silicon carbide, 10-28% of foam iron powder and 3-10% of vermiculite powder. The problem that single fiber strength is weaker can be effectively solved through collaborative design of biodegradable corn straw fiber and Lapinus fiber, braking noise is reduced, and the scratching of the friction material to a pair is decreased. The overall performance of the friction material is improved, friction factors are stabilized, and the abrasion quantity is decreased, so that the friction material has reasonable service life, compression amount and good heat-conducting performance, has very good weather resistance, the influence of rainwater, ice and snow on the friction material can be very well prevented, and the reliability of the friction material is improved.

The invention provides an electron linear accelerator diode electron gun with a replaceable cathode. The electron linear accelerator diode electron gun comprises an anode, a cathode, a ceramic cylinder shell and a base of the electron gun. The anode is fixed in an anode flange. The cathode is installed in a beam forming electrode. The base covers the upper end of the ceramic cylinder shell. A cathode column is axially arranged in the ceramic cylinder shell. The upper end of the cathode column and the base are detachably connected, and the lower end and the upper end of the beam forming electrode are detachably connected. An upper electrode and a lower electrode which are mutually detachably connected are coaxially arranged in the cathode column. The upper end of the cathode is connected with the lower electrode through a cathode lead-out wire. The upper electrode penetrates through the base to be connected with a high voltage power supply through a connecting post. A silica gel band winds the external surface of the ceramic cylinder shell. The connecting part of the base and the ceramic cylinder shell is provided with silicone rubber used for preventing high voltage creepage through pouring. The electron linear accelerator diode electron gun is reasonable in structure, the replaceable cathode is convenient and the electron gun is stable and reliable in working so that the service life can be greatly prolonged, equipment use cost can be reduced and the effect of preventing high voltage creepage can also be realized.