45results about How to "Lubricating and non-sticky" patented technology

The invention belongs to the field of gas detection and especially relates to a convenient gas detector. The convenient gas detector comprises a housing and an ionization chamber, an ultraviolet driver, a signal detection circuit, a single-chip microcomputer, a liquid crystal display module, a USB interface communication module and an audible and visual alarm which are arranged inside the housing. The ionization chamber is positioned at the lower part of the housing. The ultraviolet driver is disposed on the ionization chamber. The signal detection circuit is mounted near the ultraviolet driver. A micro-pump driving module is arranged at the right side of the signal detection circuit. A DC high-voltage module is arranged at the right side of the micro-pump driving module. The single-chip microcomputer is disposed above the ultraviolet driver. The liquid crystal display module is mounted near the single-chip microcomputer. The USB interface communication module is arranged near the liquid crystal display module. The audible and visual alarm is disposed near the USB interface communication module. The convenient gas detector provided by the invention has a simple and reasonable structure, is small in volume, is convenient to carry, meets real-time and continuous detection requirements of working sites and has a wide application range.

The invention discloses a multi-layer composite felt for filtering. The multi-layer composite felt for filtration comprises a base cloth, a first filter layer and a second filter layer arranged in sequence, and the base cloth materials are polyphenylene sulfide fibers and glass fibers Mixed weaving is located in the outermost layer, the first filter layer material is 0.5-3μm and 20-50μm diameter glass fiber composite felt placed on the upper surface layer of the base cloth, the second filter layer material is ultra-fine glass fiber and polytetrafluoroethylene The fiber composite felt is placed on the upper surface layer of the first filter layer. The multi-layer composite felt for filtration can give full play to the respective performance advantages of glass fiber, polytetrafluoroethylene and polyphenylene sulfide fiber, and make up for the shortcomings of each other. A new type of filter material with excellent chemical corrosion resistance, good mechanical properties, and wear resistance.

The invention discloses a polymer strain gauge sensor and an intelligent cable manufacturing method. The polymer strain gauge sensor comprises a polymer block and a high-temperature strain gauge, a strain gauge groove is formed in the middle position of the macromolecule block; high-temperature strain gauges are adhered to the interiors of the strain gauge grooves through high-temperature glue; the high-temperature strain gauge comprises a substrate and metal sensitive wires, the metal sensitive wires are distributed on the substrate, welding spots are arranged on the two sides of one end of the substrate, one ends of the metal sensitive wires are welded to the welding spots, high-temperature wires are welded to the other ends of the welding spots, and the outer sides of the high-temperature wires are sleeved with shielding sleeves. According to the invention, a specially-made high-molecular strain gauge sensor is pasted on a steel wire to form the intelligent cable; the high-molecularblock of the high-molecular strain gauge sensor is made of polytetrafluoroethylene, so that the high-molecular strain gauge sensor is good in sealing performance, high in lubrication and non-stickiness, good in electric insulativity and aging resistance and excellent in temperature resistance, and can deform under the long-term action of stress, so that the strain force of the intelligent cable can be measured more accurately.

The invention provides a windproof safe thermocouple, comprising a detection body, a housing, a thermocouple wire, a work head, a protective cover, etc. The outside of the detection body is provided with the housing; the housing, a windproof assembly and the protective cover are correspondingly provided with an installing hole, and are successively installed together through installing holes. A corrosion resistant coating is sprayed on the upper surface of an air baffle, and has good chemical stability, corrosion resistance, sealing performance, high lubrication, zero viscosity, electric insulating property and aging resistance, which allows the windproof safe thermocouple to be directly used for measurement of various complex environments, thereby avoiding the case in which a traditional electric thermocouple burns out a thermocouple wire and ejects flames when a temperature is too high, and meanwhile allowing the windproof safe thermocouple to be in direct contact with a detected object for measurement, avoiding intermediate medium influence, and obtaining more accurate detection results. The protective cover is a detachable structure, is convenient for wind and fire prevention, and ensures work personnel safety.

The invention discloses a gas-liquid separator. The gas-liquid separator comprises a barrel, an upper head, a lower head, a silk screen device and a structured packing device, wherein a gas-liquid mixture inlet is arranged on the side surface of the lower end of the barrel; the upper head is connected to the upper end of the barrel, and a gas phase outlet is arranged at the top end; the lower headis connected to the lower end of the barrel, and a raffinate outlet is arranged at the bottom end; the silk screen device is connected between the upper head and the barrel; the structured packing device is detachably connected to the middle of the barrel; the silk screen device and the structured packing device are both made of a modified PTFE (polytetrafluoroethylene) material which is 1-2 mm thick; the modified PTFE material comprises components in percentage by mass as follows: 85% of PTFE fine powder, 12% of carbon fiber powder and 3% of graphite. The gas-liquid separator has the benefits of corrosion resistance, high temperature resistance and high separation efficiency.

The invention discloses a lining sliding plate of a warp knitting machine. At the time of spreading wefts, a lining weft chain of the warp knitting machine slides on the lining sliding plate. The lining sliding plate comprises a base plate made of metal materials and a lining plate made of nonmetal abrasion-proof materials. The upper end face of the base plate is provided with an elongated boss extending along the length direction of the base plate, and the lining plate is detachably arranged on the upper end face of the base plate and is in sliding connection with the lining weft chain. The upper end face of the base is further provided with a groove, the lining plate is embedded in the groove, and the height of the lining plate is larger than the depth of the groove. The base plate is optimally made from 40Cr, the lining plate is optimally made from polytetrafluoroethylene, and the lining plate is detachably arranged on the upper end face of the base plate by bolts. According to the invention, not only can the production cost of the lining sliding plate be reduced greatly, but also the lining weft chain can work stably without rollover accidents. The lining sliding plate is especially suitable for being popularized in and applied to multi-axial warp knitting machines.

The invention discloses an in-situ multi-field analysis testing device and method for a chip-based micro-electrochemical cell and application, and belongs to the technical field of in-situ electricity / electrochemistry / optical testing and mechanism research of chemistry, materials and energy. Comprising a reaction tank main body, a porous transparent plate and a sample table, electrolyte is contained in an annular groove of the reaction tank main body, a transparent plate with holes covers the electrolyte groove, and a central hole of the transparent plate is used as an observation window; the chip-based micro-electrochemical cell is pressed on the lower surface of the perforated transparent plate through a sample table, and the chip-based micro-electrochemical cell and the perforated transparent plate pass through a hydrophobic gasket; the reference electrode and the counter electrode are respectively arranged in the reference electrode connecting hole and the counter electrode connecting hole through waterproof threading bolts, one ends of the reference electrode and the counter electrode are in contact with the electrolyte, and the other ends are externally connected with an electrochemical workstation; one end of the lead is connected with the sample micro-area of the chip-based micro-electrochemical cell, and the other end is externally connected with an electrochemical workstation. According to the invention, in-situ electrical / electrochemical / optical multi-field analysis can be carried out at the same time, time is saved, operation is simple and convenient, and the test success rate is high.

The invention discloses a sewage recovery and transportation device for a biochemical sewage treatment tank and relates to the technical field of sewage recovery and transportation devices. The sewagerecovery and transportation device comprises a mixing tank, a second water pipe and a coarse filter net. A stirring motor is installed above the mixing tank. A stirring shaft is installed below the stirring motor. A sedimentation tank is installed on the right side of the second water pipe. The second water pipe is located below the mixing tank. The front end of the sedimentation tank is providedwith a third water pipe. The middle of the third water pipe is connected to a forth water pump. The first and second water pipes cooperate so that the sewage generated in a dirt storage chamber is effectively introduced into the sedimentation tank and is circulated. The dirt storage chamber can effectively collect the sludge to facilitate centralized treatment on the sludge by the user. The coarse filter net can effectively prevent the sludge from being reintroduced into the sedimentation tank.

The invention discloses a polytetrafluoroethylene traction pipe which comprises an outer pipe, a cylindrical sealing plug, a U-shaped traction ring and a cross-core bolt. The outer diameter and the wall thickness of the outer pipe are the same as those of a dragged polytetrafluoroethylene pipeline. A radial through hole is formed in the position, a half length away from the end, of the cylindrical sealing plug. The cross-core bolt penetrates into the radial through hole. The two ends of the cross-core bolt are fastened through nuts after extending out of the outer pipe and the through hole of the U-shaped traction ring. The problems that in the non-digging tubular product construction process, flattening and breaking are prone to happening are solved, and the polytetrafluoroethylene traction pipe can go into earth by 18 m or above to conduct traction construction, is suitable for construction of cross rivers, buildings, railways, roads and the like without conditions of road surface digging, saves time and labor, and improves the work efficiency and product safety.

The invention relates to the technical field of new energy vehicles, in particular to a cable for a new energy vehicle that is convenient for winding and a winding method thereof. The cable includes a device body, a stretching mechanism and a protection mechanism. The device body includes a copper wire, and the A protective shell is fixedly connected to the outside of the copper wire, the stretching mechanism includes a fixed rod, a protective cover is fixedly connected to the outside of the copper wire, and a fixed rod is connected to the outer wall of the protective cover, and the top of the fixed rod is on the right side. The side is fixedly connected with a first fixing block, the right side of the first fixing block is fixedly connected with a tensile strip, one side of the protective cover is fixedly connected with a fixing strip, and the top of the fixing strip is fixedly connected with a second fixing strip piece. In the present invention, when the protective shell is bent, the stretching strip is stretched to the right, the first fixing block is close to the fixing rod at the right end, the distance between the first fixing block and the fixing rod is continuously reduced, and the protective cover is unfolded, which is beneficial to the stretching of the protective shell. Different types of cars.

The invention discloses high-performance flame-retardant ABS (acrylonitrile butadiene styrene) resin and a preparation process thereof and belongs to the technical field of ABS preparation. The high-performance flame-retardant ABS resin comprises ABS resin material and flame-retardant reinforcing beads; each flame-retardant reinforcing bead includes a flame-retardant reinforcing bead shell; a plurality of flame-retardant powdery beads and flame-retardant liquid beads in uniform distribution are covered within each flame-retardant reinforcing bead shell, wherein the flame-retardant powdery beads are filled with flame-retardant powder, the flame-retardant liquid beads are filled with a flame-retardant liquid, a plurality of main reinforcing posts in uniform distribution are fixedly connectedto the outer surface of each flame-retardant reinforcing bead shell, and a plurality of auxiliary reinforcing posts in uniform distribution are fixedly connected to each main reinforcing post. As theflame-retardant reinforcing beads are added to the material, the flame-retardant ABS resin can burn for long time in case of a fire, and may automatically release fire powder and release carbon dioxide by chemical reaction, thereby alleviating spread of the fire and greatly reducing the loss of property or related equipment.

The invention discloses a petroleum pipeline and welding equipment and a welding method for the petroleum pipeline. The petroleum pipeline is prepared by the following raw materials: 55-58 parts of nitrile rubber, 8-10 parts of fluororubber, 13-15 parts of polyurethane resin, 6-8 parts of polytetrafluoroethylene, 2.5-4 parts of sodium methyl silicate, 0.5-1 parts of graphene, 1-2 parts of titaniumdioxide, and 0.5-2 parts of sodium alkyl sulfonate. The welding equipment comprises Y-shaped pipeline support frames, tracks and a welding apparatus, the welding apparatus comprises a base, a hot melt pipe, a fixing plate, a left clamping plate, a right clamping plate and a rotating component, the left clamping plate and the right clamping plate are spliced for fixing an auxiliary pipe, the bottom end of the hot melt pipe is placed in a connecting pipe for 2 s-5 s, the auxiliary pipe is moved down and sleeved at the top end of the hot melt pipe for 2 s-5 s, the rotating component makes the hot melt pipe rotate, simultaneously the auxiliary pipe moves up together with the hot melt pipe, after the connecting pipe is separated from the hot melt pipe, the hot melt pipe does not move, the auxiliary pipe continues to rise, after the auxiliary pipe is separated from the hot melt pipe, the hot melt pipe stops rotating, the hot melt pipe retreats, and the auxiliary pipe is moved down and placed into the connecting pipe for 5 s-10 s to complete the welding. The welding method is simple and convenient.