45results about How to "Avoid pulling hair" patented technology

The invention provides a combined process of filling and screw capping nail polish, relating to the technical field of cosmetic packaging machinery, filling machinery and automatic production equipment, and particularly relating to combined process of filling and screw capping nail polish. The combined process comprises the following steps: conveying bottles, sequential feeding the bottles, positioning the bottles, filling through a peristaltic pump, anti-leakage blocking, automatically filling steel balls, automatically feeding hair brushes, automatically conveying caps, automatically capping, automatically screwing the caps, automatically discharging the bottles, manually putting bottle sleeves and automatically pressing the bottle sleeves. The combined process can be used for relieving labor intensity of workers, improving the filling precision and production quality, enhancing the labor efficiency and accelerating the production speed.

The invention relates to a novel high-thermal conductivity high-abrasion resistance hot stamping die material. The current hot stamping die steels on the market are mainly various improved high alloy steels such as H13 steel, H11 steel and the like. The steel disclosed by the invention comprises the following components in percentage by mass: 0.45-0.5% of C, less than 0.2% of Si, less than 0.20% of Mn, 1.0-2.0% of W, 2.0-3.5% of Mo, less than 0.30% of Cr and the balance of Fe and other unavoidable impurity elements, wherein the S content is less than or equal to 0.03% and the P content is less than or equal to 0.03% in the impurity elements. The steel has the characteristics that simple C, Mo and W elements are taken as the main components and the proportion of carbide is coordinated; low Mn content, low Cr content and super low Si content are kept; the material has good machinability after being subjected to electric-furnace smelting, electroslag remelting, annealing, high-temperature homogenizing, forging and annealing; after being subjected to heat treatment (quenching at the temperature of 1060-1100 DEG C and repeatedly high-temperature tempering), the steel has the toughness of general hot stamping die steels such as H13 steel and is better in hardness, tempering stability and thermal fatigue property; and the steel is more suitable for hot stamping due to the advantages of lower thermal expansion coefficient, high thermal conduction ability and high abrasion resistance particularly.

The invention relates to a novel material with ultra-high thermal conductivity for a hot-stamping die. The steels in the market for the hot-stamping die are mainly various types of improved H13 and H11 high-alloy hot work die steels. The steel in the invention comprises the following compositions in percentage by mass: 0.150-0.35% of C, less than or equal to 0.25% of Si, 0.08-0.20% of Mn,1.0-2.0% of W,2.0-4.5% of Mo, less than or equal to 0.30% of Cr,less than or equal to 0.02% of V and the balance of Fe and inevitable impurity elements, wherein S in the impurity elements is less than or equal to 0.005%, P in the impurity elements is less than or equal to 0.01 and O in the impurity elements is less than or equal to 30 ppm (parts per million). The invention is characterized in that simple elements i.e. C, Mo and W are used as the main elements, and proper proportion of carbide is adopted; the contents of Mn and Cr are maintained low, and the content of Si is maintained ultra-low; the steel has superior machining property after being subjected to electro-smelting, electro-slag remelting, annealing, high-temperature homogenization, forging and annealing; through thermal treatment (1060-1100 DEG C quenching and high-temperature annealing), the toughness of the steel can reach the toughness of common hot-stamping die steel such as H13, and the hardness, annealing stability and the fatigue property of the steel are more superior; particularly, the steel with lower coefficient of thermal expansion and ultra-high thermal conductivity is more suitable for hot stamping.

The invention relates to a thermal treatment and plasma nitrocarburizing surface treatment process method for special wear-resistant die steel (HDCM) with ultrahigh heat conductivity for hot stamping a high strength steel plate / tube. The thermal treatment process comprises the following steps: quenching at 1050 DEG C-1000 DEG C and annealing twice at 560 DEG C-600 DEG C; the conditions of the surface treatment process are as follows: the voltage is 600V-850V, the atmosphere ratio is NH3:CO2=10: 1 to 16:1, the furnace pressure is 450Pa-700Pa, the nitriding temperature is 520 DEG C-550 DEG C, and the nitriding time is 8 hours-12 hours. In the aspect of overall performance, the performances of the special hot stamping die steel are as follows: the hardness is 51HRC-53HRC, and the notched bar impact strength Ak is about 170J-200J. After surface plasma nitridation, a compound layer is formed on the surface of the die. The white bright layer is 6mu m-17mu m thick, the Vickers Microhardness is 750HV300-750HV300, and the nitriding layer is 150mu m-260mu m. The hardness value of the die steel provided by the invention is higher than H13 in common thermal treatment, so that the wear resistance of the die can be improved, galling of the surface of the die can be effectively prevented, and the service life of the die can be greatly prolonged by virtue of plasma surface nitridation.

The invention discloses a preparation method of a TiCu50 master alloy material by vacuum consumable arc melting, which mainly comprises the following steps: (1) mixing raw materials: according to theweight percentage content, the percentage contents of raw material are: Cu 50%, and TiO 50%, the required raw materials are weighted according to the proportion, and the raw materials are mixed in a mixer; (2) pressing: the mixed powder is loaded into a rubber sleeve and is subjected to mechanical vibration, rolling and reverse material mounding, and then the cold isostatic pressing method is adopted to press the mixed powder, and then the pressure-keeping treatment is carried out; (3) sintering: the pressed consumable electrode is loaded into a vacuum sintering furnace for sintering, and thesintering temperature, the holding time and the vacuum degree are controlled; Step (4) smelting: the sintered consumable electrode is charged into a vacuum consumable arc smelting furnace for smelting. The TiCu50 master alloy material prepared by the invention has low gas content and less impurities, and is uniform in composition, and has no macroscopic and microscopic defects such as enrichment of Cu and Ti.

The invention discloses a heat treatment and surface treatment method of a mold steel SDCM1 for hot stamping. The heat treatment and surface treatment method comprises quenching and tempering; the method comprises the following steps: vacuum heat treatment: the quenching temperature is 1010-1040 DEG C; two times of tempering: the tempering temperature is 580-610 DEG C; and surface plasma nitriding: the voltage is 600-900 V; the atmospheric specific value of NH3 to Ar is 1: (6-10); and the furnace pressure is 133-1066 Pa. A non-compound layer nitriding layer is obtained through controlling such parameters as plasma nitriding atmospheric ratio, nitriding time, furnace pressure, voltage and nitriding temperature. When the surface hardness of the mold is improved, the corrosion resistance, wear resistance and bonding resistance of the mold are optimized. The worn mold can be reused through repairing and secondary plasma nitriding so as to largely prolong the total service life of the mold. The equipment cost is lower; the workpiece size and shape are low in limitation; and the method can be totally applied to the actual production.

The invention discloses a low-temperature ball valve, which comprises a valve body, a valve cap, valve seat assemblies, a ball body, a valve rod and a stationary shaft, wherein the valve body and the valve cap are respectively provided with a runner; the valve body and the valve cap are connected by a gasket, a stud and a nut; the ball body is arranged in the valve body; and two sides of the ball body are respectively provided with one valve seat assembly respectively connected with the insides of the valve body and the valve cap. The low-temperature ball valve is further provided with a driving device, wherein the driving device is connected with the upper part of the valve rod by a key, and the lower end of the valve rod is connected with the ball body. According to the low-temperature ball valve disclosed by the invention, a welding line for connecting the valve body and the valve seat adopts a full-automatic welding technology, and the valve body and the valve seat adopt the U-shaped welding line so as to eliminate a leaking point in the welding line for the valve body and the valve seat. The valve sealing surface adopts Stellite hard alloy, the surface is formed by rolling, and the service life of the valve is prolonged. The sealing surface adopts automatic grinding, and the goodness fit of the sealing surface is improved.

The invention belongs to the field of metal processing production of lubricating oil, and particularly relates to a preparation method of vulcanized glyceryl trioleate and stainless steel tube drawingoil containing the vulcanized glyceryl trioleate. The vulcanized glyceryl trioleate prepared by the invention has excellent abrasion resistance and excellent extreme pressure property, and the requirements on abrasion resistance and extreme pressure property of the drawing oil can be met at the same time; the anti-abrasion stainless steel tube drawing oil is prepared by mixing diakyl pentasulfide, vulcanized triglyceride, calcium alkylbenzene sulfonate with high base number, dialkyl ammonium dithiophosphate, a phenolic antioxidant and an amine antioxidant, has excellent properties and characteristics of abrasion resistance, extreme pressure resistance, good lubricity, die protection and the like, and has a very good promotion and application value.

The invention discloses a ball valve. The ball valve comprises a valve body, a valve cover, valve seat assemblies, a ball, a valve rod, a spring, a fixed shaft, a long-neck support and a top support and further provided with a driving device. The valve body and the valve cover are respectively provided with a flow channel and connected through a gasket, a stud and a nut; the ball is arranged in the valve body, and the two sides of the ball are respectively provided with one valve seat assembly and connected with the inside of the valve body and the inside of the valve cover respectively; the driving device is connected with the upper portion of the valve rod through a key, the lower end of the valve rod is connected with the ball, and the driving device rotates to make the valve rod and the ball to rotate around the axis so that the valve can be opened or closed by 90 degrees. Corners of an upper seal support, a packing gasket and a packing pressing sleeve are designed into rounded corners, the gap is appropriately increased for inner holes, and the gap is appropriately reduced for outer circles. Roller forming and surface nitriding treatment are adopted for the surface of the valve rod to improve the surface hardness of the valve rod and prevent the surface of the valve rod from straining and galling, mechanical abrasion is reduced, and operation torque of the valve is reduced.

The invention discloses a pre-stressed drilling machine. The pre-stressed drilling machine comprises a motor, a rotating shaft, a drill bit clamp and a drill bit, wherein the drill bit clamp is fixedly connected to the rotating shaft of the motor; the drill bit is clamped on the drill bit clamp; the pre-stressed drilling machine also comprises a mica plate compacting and pressing part, a vertical lifting system and a horizontal feeding system, wherein the mica plate compacting and pressing part comprises a pressing spring and a compacting pressure plate; the pressing spring sleeves the rotating shaft; one end of the pressing spring is fixed on a shell of the motor; the other end of the pressing spring is fixedly connected with the compacting pressure plate; the compacting pressure plate is positioned in the radial direction of the drill bit; the compacting pressure plate is also provided with a through hole positioned in the axial direction of the drill bit; when the pressing spring is in a free state, the drill bit is positioned between the two end parts of the mica plate compacting and pressing part; the vertical lifting system is arranged on the horizontal feeding system; the motor is fixed on the vertical lifting system or the horizontal feeding system. The pre-stressed drilling machine disclosed by the invention is simple in structure and beneficial for improving the quality of drilling process of mica plates.

The invention discloses a hydraulic centering device, in particular a hydraulic centering device for preventing strip material from moving along the horizontal direction in the strip material rolling process. The hydraulic centering device is characterized in that the device comprises a pedestal and two bosses on the pedestal. The two bosses are arranged oppositely, and oil cylinders are arranged on the outer side of the bosses. The oil cylinders are arranged on the same axial line, and the piston rods of the oil cylinders respectively protrude inside corresponding bosses at the end section. Movable plates are arranged on the inner side of the two bosses, shaft holes are arranged on the lower section of the movable plates, and the piston rods are fixedly connected with the movable plates through nuts and the shaft holes. Both the movable plates have vertical shafts, and the two vertical shafts have guide wheels. The hydraulic centering device can improve the rolling quality and the rolling efficiency of the strip material.

The invention discloses a wedged hard sealing wear resistant gate valve. The gate valve comprises a valve body, a valve base, a gate plate, a valve rod, a valve cover and a driving device. The valve body and the valve cover are made of WCB; the sealing surface of the valve adopts is made of hard alloys; and the surface is formed through rolling. A welding lineconnecting the valve body and the valve base is realized by a full-automatic welding method; and the welding line of the valve body and the valve base is U-shaped. The sealing surface of the valve is made of Stellite hard alloys; the surface is formed through rolling; and the hardness can reach HRC 45; and the sealing surface is automatically grinded. The gate valve is an elastic gate plate; a tie piece is added at one side of a T-shaped groove of the gate plate; the edge part of a guide groove of the gate plate takes the shape of a round corner; the corners of an upper sealing base, a filler pad and a filler pressure sleeve of the gate valve all take the shape of round corners; and the surface of the valve rod is formed through rolling, and is subjected to nitriding treatment. The service life of the valve is prolonged; and the tightness of the valve is improved.

The invention discloses a surface hardening treatment method for a metal stamping die. The surface hardening treatment method for the metal stamping die comprises the steps of preliminary inspection,pre-polishing, surface nitriding, secondary polishing, coating, post-polishing and finished product inspection. The surface of the metal die is treated by a PVD coating process to form a hard coatingon the surface of the metal die. The surface abrasion resistance of the metal stamping die can be improved, hardness is higher, and the life of the metal die is greatly prolonged; the low friction coefficient results in good lubricity and reduced machining stress; the chemical corrosion resistance ability of the metal die is greatly improved; the machining quality is improved, the product is prevented from galling and straining, the product quality is improved, and the cost is reduced; the frequency of maintenance is reduced, the trouble of repeated die removal polishing and then die-assembling is omitted , and the efficiency is improvd.

The invention discloses a hole machining device. The hole machining device comprises a motor, a rotating shaft, a drill bit clamp, a drill bit, a mica plate compacting and compressing part, a vertical lifting system and a horizontal feed system, wherein the drill bit clamp is fixedly connected to the rotating shaft of the motor; the drill bit is clamped on the drill bit clamp; the mica plate compacting and compressing part comprises a compression spring and a compacting and pressing plate; the compression spring sleeves the rotating shaft; one end of the compression spring is fixed to a shell of the motor; the other end of the compression spring is fixedly connected with the compacting and pressing plate; the compacting and pressing plate is positioned in the radial direction of the dill bit; a through hole positioned in the axial direction of the drill bit is also formed in the compacting and pressing plate and is a conical hole; the relatively big end of the conical hole is close to the motor; the vertical lifting system is arranged on the horizontal feed system; the motor is fixed to the vertical lifting system and the horizontal feed system. The hole machining device is simple in structure, and the mica plate hole machining quality is improved.

The invention provides a turbine high pressure inner cylinder thermometer hole machining location device and a use method thereof. The location device and the use method solve the problem that a thermometer hole of a high pressure inner cylinder and a through hole of an outer cylinder of the turbine can be staggered easily after being machined. The location device is formed by a stepped shaft and a reducer, the reducer is inserted into the through hole of the high pressure outer cylinder, and then the stepped shaft is inserted into the reducer. After an annular stamp on the thermometer hole lug face of the high pressure inner cylinder is formed by the pigment spread on the end face of a conical hole pipe of the reducer, and machining can be conducted according to the stamp. The location device can ensure the machining position, effectively ensures the machined holes of the outer cylinder (to prevent galling) and is simple in structure and low in manufacture cost.

The invention discloses a method for assembling a large-diameter tooth-shaped thread ring of a high-pressure main steam valve of a steam turbine, and relates to an assembling method of tooth-shaped thread rings. The method aims to solve the problems that the assembling gap between the thread ring of the steam turbine and a valve casing of the steam turbine is small so that the thread ring and the valve casing cannot be installed in the installation process, or threads of the valve casing are prone to galling in the assembling process and then the buttress threads are damaged, and the assembling efficiency is not high. The method comprises the following specific steps that 1, a 3M cyclone brush is connected to a pneumatic tool to clean threads of the thread ring and the threads of the valve casing; 2, a flange of the valve casing faces upwards and is clamped stably through a special clamp; 3, starting positions of the threads of the thread ring and the valve casing are marked, the large-diameter buttress thread ring is lifted to the position right above the valve casing and is centered through a crane, torque values, displayed on a dynamometer, of the thread ring and a lifting tool are recorded, and the thread ring is slowly dropped to the position 100mm away from the horizontal position of the threads; and 4, the thread ring is screwed into the valve casing from the starting positions. The invention belongs to the field of steam turbines.

The invention discloses a cold machining process of an ultradeep-hole long and thin part and a cold extruding stretching mold, and belongs to the technical field of cold extruding. According to the cold machining process, the bar is subjected to alramenting according to part needs, and a hollow short pipe blank is formed; and then a hole protection needle stretches into a center through hole of the hollow short pipe blank, the hollow short pipe blank is cold-extruded and stretched to the length needed by the part and an ultradeep hole of the long and thin part is molded. The invention furtherdiscloses a cold extruding stretching mold for the cold machining process of the ultradeep-hole long and thin part. According to the cold machining process of the ultradeep-hole long and thin part andthe cold extruding stretching mold, the problem that an existing ultradeep-hole long and thin part is large in molding difficulty, poor in precision, low in machining efficiency and the like is solved, the machining efficiency and quality of the ultradeep-hole long and thin part are greatly improved, and the machining adaptability to the part is high; and the cold machining process can be used for cold machining molding of various ultradeep-hole long and thin parts, is theoretically not limited by the draw ratio of the parts, and is especially suitable for machining the ultradeep-hole parts large in draw ratio.

The invention relates to a preparation method of a short-process bainite hot-working die, which comprises the following steps: designing die steel components: 0.50 to 0.60 percent of C, 0.20 to 0.25 percent of Si, 1.00 to 1.50 percent of Mn, 2.10 to 3.00 percent of W, 3.50 to 5.00 percent of Mo, 0.50 to 1.00 percent of V, 0.60 to 1.10 percent of Co, less than or equal to 0.02 percent of P, 0.01 to 0.10 percent of RE, more than 3.0 percent of [RE] / [S], less than 0.004 percent of [RE] * [S] and the balance of Fe and inevitable impurities. Through design and adjustment of components of the die steel, the bainite structure die steel material subjected to forging and controlled cooling is low in hardness and can be directly machined and machined, the bainite of the die steel material is subjected to secondary strengthening effect through primary tempering treatment after forging and machined and machined, and the die steel has excellent hardness, wear resistance and toughness; and the composite material has excellent comprehensive mechanical properties. By utilizing the characteristic, the process of annealing softening between mechanical rough machining and quenching hardening after mechanical rough machining in the prior art is omitted, so that the production cycle of the hot-working die is shortened, and the energy consumption and the production cost are reduced.

The invention discloses a methanol modifier and a preparation method and application thereof, and belongs to the technical field of new energy. The methanol modifier comprises the following raw materials in parts by weight: 30-40 parts of a corrosion inhibitor, 10-20 parts of a clearing agent, 30-40 parts of low-carbon alcohol and 10-20 parts of vegetable oil, wherein the corrosion inhibitor is composed of benzotriazole, mercaptobenzothiazole, methylbenzotriazole, organosilicon and N,N-disalicylidene-1,2-propane diamine; the clearing agent is composed of polyisobutene amine and polyether amine, and the low-carbon alcohol is composed of isopropanol and isobutanol. The corrosion inhibitor disclosed by the invention can form a compact and firm protective film on the surface of metal to protect the metal from being corroded by atmosphere and water; the clearing agent does not generate deposits, and can remove original CCD and vegetable oil to reduce abrasion of machine parts. The methanol modifier can enable methanol fuel to have the effects of corrosion resistance, oxidation resistance, emulsification resistance, static electricity resistance, lubrication improvement, prevention of galling between a piston and an air cylinder and the like.

The invention provides a bearing bush. The bearing bush comprises a semi-cylindrical bearing bush body, and oil storage points are distributed in the inner wall of the bearing bush body. In addition, the bearing bush body is 298-312 mm in length, 220-235 mm in inner diameter and 16-20 mm in wall thickness. The oil storage points of the bearing bush are used for storing lubrication oil, so that the lubrication level is improved, the friction between the bearing bush and a rotary shaft is reduced, and the inner wall of the bearing bush and the outer wall of the rotary shaft are prevented from scuffing and pulling damage; the rotary shaft and the bearing bush are protected, and the service life of the rotary shaft and the bearing bush is prolonged.

The invention discloses an automatic discharge and efficient lubrication production device having a counting function. The automatic discharge and efficient lubrication production device comprises a discharging mechanism, a hoisting mechanism and a lubricating mechanism, wherein a plurality of groups of billet pipe conveying wheels are arranged on the outer side of the head end of the discharging mechanism, the discharging mechanism is of a whole frame structure formed by a plurality of branch supports, each branch support is provided with an upper buffer plate, a lower buffer plate and a plurality of opening devices, a steel pipe chute is formed below the front of the discharging mechanism, the lower ends of front vertical rods of each branch support are connected through a second reinforcing connection rod, the second reinforcing connection rods and lower supporting rods form a steel pipe chute inlet-outlet channel, one side of the hoisting mechanism is connected with the steel pipe chute inlet-outlet channel, the other side of the hoisting mechanism is connected with the lubricating mechanism, the hoisting mechanism consists of two supporting frames and a movable cross beam, and the lubricating mechanism consists of a base, a motor, a driving device, a driving shaft and a PPR roller. The automatic discharge and efficient lubrication production device is high in automation degree and can achieve automatic discharging and counting, reduce the labor intensity, improve a lubricating effect and prevent galling.

The invention discloses a cold processing technology of an ultra-deep hole slender part and a cold extrusion elongation die, belonging to the technical field of cold extrusion processing. In the cold working process of the present invention, the surface phosphating treatment is first carried out on the bar according to the needs of the parts to form a hollow short tube blank; The hollow short tube blank is cold extruded and stretched to the required length of the part, and the ultra-deep hole of the slender part is formed. The invention also discloses a cold extruding elongating die for the cold working process of the ultra-deep hole slender parts. The invention solves the problems of the existing ultra-deep hole slender parts such as high difficulty in forming, poor precision, and low processing efficiency, greatly improves the processing efficiency and processing quality of the ultra-deep hole slender parts, and has strong processing adaptability to the parts. It can be used for cold forming of various ultra-deep hole slender parts, theoretically not limited by the length-to-diameter ratio of the part, especially suitable for processing ultra-deep hole parts with a large length-to-diameter ratio.

The invention relates to a bearing type pipe expander which comprises an expansion rod, an expansion shell and an expansion ball, wherein the expansion shell is connected to the expansion rod and can slide; the expansion ball is arranged in the expansion shell; the rear part of the expansion shell is movably connected with a bearing; and the bearing can spirally rotate along the expansion rod. When an expansion pipe with a thinner expansion pipe port or a rough inner wall is expanded, the bearing outside the expansion shell can be in contact with the expansionpipe wall so as to reduce friction and avoid the expansion pipe port from being napped.

The invention discloses an automatic discharge and efficient lubrication production device having a counting function. The automatic discharge and efficient lubrication production device comprises a discharging mechanism, a hoisting mechanism and a lubricating mechanism, wherein a plurality of groups of billet pipe conveying wheels are arranged on the outer side of the head end of the discharging mechanism, the discharging mechanism is of a whole frame structure formed by a plurality of branch supports, each branch support is provided with an upper buffer plate, a lower buffer plate and a plurality of opening devices, a steel pipe chute is formed below the front of the discharging mechanism, the lower ends of front vertical rods of each branch support are connected through a second reinforcing connection rod, the second reinforcing connection rods and lower supporting rods form a steel pipe chute inlet-outlet channel, one side of the hoisting mechanism is connected with the steel pipe chute inlet-outlet channel, the other side of the hoisting mechanism is connected with the lubricating mechanism, the hoisting mechanism consists of two supporting frames and a movable cross beam, and the lubricating mechanism consists of a base, a motor, a driving device, a driving shaft and a PPR roller. The automatic discharge and efficient lubrication production device is high in automation degree and can achieve automatic discharging and counting, reduce the labor intensity, improve a lubricating effect and prevent galling.

The invention discloses an integrated mould and method for concave and trimming of pulp moulded products, and relates to the technical field of pulp moulded product processing. The mold includes a mold body; the mold body includes a guide sleeve bottom plate; the top surface of the guide sleeve bottom plate is fixedly connected to a guide rod; the peripheral side surface of the guide rod is slidably connected with an upper mold seat; The bottom surface of the knife plate is fixedly connected with the knife frame plate and the fixed seat respectively through the connecting piece; the bottom surface of the knife frame plate is fixedly connected with the cutting die; the bottom surface of the fixed seat is fixedly connected with the concave punch through the connecting piece; the bottom surface of the concave punch is fixedly installed with a Hit the punch. The method of the invention integrates the concave and edge trimming operations on the pulp molded product, so as to avoid the occurrence of fluffing, deformation, cracking and folds, as well as the phenomenon that the concave size varies in depth and the edge trimming knife cannot cut through.

The invention discloses a steel tube production device with automatic discharging and efficient lubricating functions. The steel tube production device comprises a discharging mechanism, a hoisting mechanism and a lubricating mechanism, wherein the discharging mechanism adopts the structure that a plurality of sub-supports are fixedly connected through a plurality of first reinforcing links to form an integral framework structure; each sub-support consists of a front vertical bar, a rear vertical bar, an upper support bar, a lower support bar and a diagonal bar; an upper buffering plate, a lower buffering plate and a plurality of stretching devices are arranged on each sub-support; one side of the hoisting mechanism is connected with a steel tube chute channel, and the other side of the hoisting mechanism is connected with the lubricating mechanism; the hoisting mechanism consists of two support frames and a movable cross beam; the lubricating mechanism consists of a base, a motor, transmission devices, transmission shafts and PPR rollers; a storage groove is formed in the middle of the base, and a lubricating groove is formed in each of two sides of the storage groove. The steel tube production device is reasonable in structure, high in degree of automation and automatic in discharging, greatly reduces the labor intensity, is sufficient in lubrication and can prevent the inner wall and outer wall of a steel tube from galling.

The invention discloses a low-temperature ball valve, which comprises a valve body, a valve cap, valve seat assemblies, a ball body, a valve rod and a stationary shaft, wherein the valve body and the valve cap are respectively provided with a runner; the valve body and the valve cap are connected by a gasket, a stud and a nut; the ball body is arranged in the valve body; and two sides of the ball body are respectively provided with one valve seat assembly respectively connected with the insides of the valve body and the valve cap. The low-temperature ball valve is further provided with a driving device, wherein the driving device is connected with the upper part of the valve rod by a key, and the lower end of the valve rod is connected with the ball body. According to the low-temperature ball valve disclosed by the invention, a welding line for connecting the valve body and the valve seat adopts a full-automatic welding technology, and the valve body and the valve seat adopt the U-shaped welding line so as to eliminate a leaking point in the welding line for the valve body and the valve seat. The valve sealing surface adopts Stellite hard alloy, the surface is formed by rolling, and the service life of the valve is prolonged. The sealing surface adopts automatic grinding, and the goodness fit of the sealing surface is improved.

The invention discloses a wear-resisting gate valve control method based on a computer system. The wear-resisting gate valve control method comprises the followings steps: step 1: a main control module of a gate valve control system sends out a starting instruction; step 2: a temperature sensor enables a collected temperature signal to be respectively subjected to signal conversion and conduction of an A / D (Analogue / Digital) module and an I / O (Input / Output) module and reports the processed temperature signal to the main control module; step 3: a pressure sensor enables a collected pressure signal to be respectively subjected to the signal conversion and the conduction of the A / D module and the I / O module and reports the processed pressure signal to the main control module; and step 4: the main control module carries out moving average filtering. According to the method disclosed by the invention, the temperature sensor inputs the temperature signal. A display module has a gas-liquid valve state indication function. A gas-liquid valve state comprises a gas-liquid linking valve opening in-place instruction, a gas-liquid linking valve closing in-place instruction, a gas-liquid linking valve on-site / remote state and a control system explosion-proof door state.