148results about How to "Intensity is not affected" patented technology

The invention discloses a flame-retardant covering yarn fabric and application thereof. The product is made from covering yarns, wherein the covering yarns are subjected to the processing of flame-retardant after finishing; the core yarns of the covering yarns are polyester, nylon, spandex, vinylon, polyethylene or composite yarns thereof; and the cladding material of the covering yarns are cotton fibers, viscose fibers or composite fiber materials thereof. The flame-retardant covering yarn fabric can be applied to the manufacturing of protective clothing, military clothing or military coverlets. The flame-retardant covering yarn fabric provided by the invention can keep higher physical mechanical strength and has a flame-retardant effect.

The invention discloses a special hanger with guide cover wheel hub. The special hanger comprises a T-shaped hanger and two double-hole lug plates, wherein the middle part of a cross beam of the T-shaped hanger is fixedly connected with the lower end of a vertical beam; the upper end of the vertical beam is provided with a hanging hole; and the two double-hole lug plates are provided with two hanging holes respectively. The turning and hanging method of the invention comprises the following steps of: 1) vertically hanging the cross beam into a manhole of the wheel hub through a top hole of a guide cover, and transversely turning the cross beam; 2) fixedly connecting the vertical beam and the middle part of the cross beam to form the T-shaped hanger and fixing the two double-hole lug plates on the wheel hub respectively; 3) connecting a main hook and sling and a secondary hook and sling with corresponding holes of the T-shaped hanger and the two double-hole lug plates respectively; 4) vertically hanging the guide cover wheel hub; 5) turning over the guide cover wheel hub; and 6) hanging a manual hoist crane on the main hook and sling to adjust the inclination angle of axis of the wheel hub, thereby aligning central lines of a connecting surface of the wheel hub and an end face of a main shaft. The special hanger improves the safety and the efficiency for the turnover of the wheel hub and reduces the labor intensity.

A wood protecting agent for flame-retarding and anticorrosion purposes is prepared from dicyanobiammonium phosphate, boric acid, quaternary ammonium salt, alkylphenolether, low-grade alcohol cosolvent, silicone sol, silane coupling agent, water-softening agent and water.

The invention relates to the technical field of laser engraving, in particular to a method for engraving a miniature two-dimensional code in glass laser. The method for engraving the miniature two-dimensional code in the glass laser comprises the following steps that a DATAMATRIX two-dimensional code encoding method is used for generating an initial two-dimensional code drawing file of a circle pattern; and a single-point mode two-dimensional code drawing file composed of a plurality of independent single points is generated according to the initial two-dimensional code drawing file of the circle pattern; processing delay parameters are arranged behind the each single point of the single-point mode two-dimensional code drawing file, and a target two-dimensional code drawing file is generated; a glass sample is located through a coaxial CCD camera, and the position to be processed is calculated; and an optical path is adjusted to enable the focused spot size of a laser beam to be smaller than a calibration value, a focus point of the laser beam is moved to the position to be processed inside the glass sample, and the two-dimensional code processing is carried out according to the target two-dimensional code drawing file. The tailing phenomenon caused by a galvanometer when the action time of a picosecond laser is extremely short is effectively prevented, and two-dimensional small-size engraving is enabled to be possible.

An orthodontic assembly includes a self-ligating attachment having a groove for receiving an orthodontic arch. An elastic clip can be reversibly moved between an open position and a closed position sealing the groove. A base including an external surface and an occlusal surface, said external surface of the base supporting the attachment and said occlusal surface of the base being intended to rest on one of the patient's teeth. The aforementioned clip can be moved in an at least partially rotational manner between the open position and the closed position. Moreover, the area of the above-mentioned base that supports the attachment comprises a depression at least partially in the form of a cup and the clip is inserted into the depression when in the closed position.

The invention belongs to the technical field of composite material manufacturing and shaping and relates to a shaping method of an oversize composite material part with special honeycomb cellular structure. The method includes the following steps of: (1) prefabricating a honeycomb cell component according to the size of a composite material shaping part; (2) cementing a coating on the upper surface and the lower surface of each honeycomb cell component and reserving a coating overlapping part and a honeycomb overlapping part respectively at two sides of each honeycomb cell component; (3) cementing a nylon gauze on the upper surface and the lower surface of the split joint seam in each honeycomb cell component; (4) encapsulating the honeycomb cell component after adhesion in a vacuum bag to be pressurized and solidified; and (5) continuing connection on the encapsulated vacuum bag to extend the size so as to encapsulate and pressurize the honeycomb cell component after adhesion in the vacuum bag. The invention separately prepares the honeycomb cell components, uses an oversize vacuum bag to block up the integral shaping of pressurization, satisfies the overall rigidity and flexibility, has no unrecoverable fold or crack in the cementing seam in bending and achieves the cementation and solidification requirements in normal temperature.

The normal pressure plasma treating process of chemical fiber fabric includes the following four steps: plasma surface sputtering treatment of the chemical fiber fabric, surface cross-linking grafting, surface etching treatment, and high temperature setting finishing. In the surface cross-linking grafting, the chemical fiber fabric through the plasma surface sputtering treatment and with hydrophilic hydryscopicity is cross-linked and grafted with acrylate emulsion, polyglycol ester and antistatic agent to maintain the lasting hydrophilic hydryscopicity and prevent the generation of static electricity. The further plasma etching treatment can further raise the hydryscopicity, air permeability and adhesiveness of the chemical fiber fabric and improve the soft feeling and wrinkle resistance. The high temperature setting finishing can fix the performance of the chemical fiber fabric. The process can improve the performance of chemical fiber fabric greatly.

The invention discloses a measurement specimen and a measurement method for an interface characteristic of an embedded rib reinforced concrete beam. The specimen comprises a combined reinforced rib, wherein a through groove is formed in the center of the section of the combined reinforced rib in the axial direction; strain gauges are uniformly distributed on the inner wall of the through groove along the axial direction of the through groove. The method comprises the following steps that the combined reinforced rib is embedded into the concrete beam, and according to the conventional four-point bending static load test, an automatic static strain acquisition instrument records data epsilon f of the strain gauges and the cracking load Pcr, the yield load Py and the ultimate load Pu of the beam in real time; according to the strain data measured actually, the shearing strength of an interface of the combined reinforced rib or a CFRP rib with a glue agent is obtained by calculation; the Pu theory value is obtained by calculating according to the calculating method of the concrete reinforcing strength in the concrete reinforcing theory. By comparing the errors of the Pu theory value with the Pu, the result shows that the specimen can be used for improving the measurement precision of parameters of the interface characteristic of the reinforced concrete beam, and the strain measurement is convenient and easy.

The invention discloses a folding support mechanism, a folding bed stand and a folding seat bracket. The folding support mechanism comprises a pin joint rack which includes two connecting rods in pin joint; the folding support mechanism further comprises a support bar; the two connecting rods are slidably connected with a sliding seat respectively, two ends of the support bar are rotatably connected with the sliding seats of the two connecting rods respectively, and maximum rotation unfolding angles of the support bar relative to the two connecting rods are no more than 90 DEG. According to the invention, since the maximum rotation unfolding angles of the support bar relative to the two connecting rods are no more than 90 DEG, the support bar is rotary relative to the two sliding seats; thus, the phenomenon of deadlocking is avoided, it is guaranteed that the support bar moves to a position where the support bar abuts against the two connecting rods so as to maintain unfolding, and the following beneficial effects are obtained: a) unfolding can be maintained by only using one support bar, so the advantages of saving of materials, low cost and light weight are obtained; b) demands for unfolding and folding can be satisfied at the same time; c) unfolding and folding are convenient and smooth, and the folding support mechanism has a long service life; and d) strength of the connecting rods are not influenced.

The invention relates to an automobile windscreen which comprises an outer layer windscreen and an inner layer windscreen, wherein a cavity is arranged between the outer layer windscreen and the inner layer windscreen, and transparent and heat insulation silicon dioxide aerogels are filled in the cavity. Compared with the prior art, the automobile windscreen has a good anti-fog performance and a strength close to that of the normal windscreen.

The invention relates to an equipment punching coding method which is a coding and identification method used for equipment and logging tools under a petroleum exploitation environment. A plurality of small holes are formed in the logging equipment, and the equipment is coded and identified, so that clear identification is ensured, the strength of the working equipment is prevented against influences, and the damage prevention capability and the recognition rate of codes are improved.

The invention relates to a ceramic decorative detached brick with natural water erosion surface, comprising an adobe made of same or different colored blanks, the brick surface is water erosion surface, namely a plurality of rugged pits or cambered surfaces or natural round pitting surfaces different depth generated due to water immersion and erosion are arranged on the surface of the brick. Compared with the prior detached brick, the production method is characterized in that the water erosion and flushing process are added between the drying process and the calcination process, the drying process is as follow: immersing the dry adobe surface of detached brick under water 1 to 3mm for 1 to 10 minutes, when the immersed part fully softened, washing the brick surface with fresh water, thus a plurality of rugged pits or cambered surfaces or water erosion surfaces with the depth of 0.1 to 3mm are formed on the brick surface, then calcining the adobe after drying. The surface of the brick produced with the method has smooth rugged pits which are similar to the stone surface eroded or flushed by water, and appears the unique artistic effect; furthermore, the brick surface has no scratch; the appearance is beautiful, and the brick body is higher in strength and more corrosion resistant.

The invention relates to a method, equipment and system for manufacturing a metal product and a control method of the equipment. The method comprises the following steps: firstly using a 3D printing method to print a model of the metal product to be manufactured with a fusible material to form a fusible material male die, meanwhile conducting the 3D printing on the periphery of the fusible material male die to form a fusible material female die, injecting high-temperature-resistant material slurry into a cavity defined between the fusible material male die and the fusible material female die, drying and molding the high-temperature-resistant material slurry, and meanwhile after the fusible material is molten, forming a high-temperature-resistant material female die, injecting molten metal in the high-temperature-resistant material female die, and cooling the molten metal to form the model of the metal product. With adoption of the equipment and the method disclosed by the invention, the production automation for the metal product with any shape is achieved, the production precision is high, and the costs for production and the equipment are low.

The invention proposes a connecting structure of a vehicle cabin longitudinal beam and a front wall cross beam. The vehicle cabin longitudinal beam and the front wall cross beam are connected through the connecting structure; the front end of the connecting structure is glued with the left and right two side surfaces of a cabin longitudinal beam assembly; and the back end of the connecting structure is glued with the front wall cross beam. The vehicle cabin longitudinal beam and the front wall cross beam adopt aluminum alloy profiles with better rigidity and strength; and profile molds are low in investment cost and high in production efficiency. The connecting structure is novel and unique in structure, realizes three-dimensional connection of the longitudinal beam and the cross beam, and adopts a structural glue bonding process; and because of the characteristics of cold bonding and hot curing of structural glue, a bonding area has no heat influence, and the strength after bonding curing is not influenced. Meanwhile, before the structural glue is not cured, the thickness of the glue is used for eliminating self manufacturing errors of parts and assembly errors among the parts, so that the manufacturing precision is improved.

The invention provides a roller bearing inner and outer ring roller path abrasion resisting structure. Sawtooth-shaped or wave-shaped pit arrays extending in the circumferential direction are formed in an inner ring roller path and an outer ring roller path of a bearing and composed of cylindrical pits. By means of the roller bearing inner and outer ring roller path abrasion resisting structure, fluid dynamic pressure lubrication is formed on the surfaces of the roller paths of the bearing in the work state, when the roller bearing moves, lubricating oil enters a work area, a certain oil pressure is established for supporting an outer load, an oil film is formed and protects a work face, the friction coefficient is reduced, accordingly, abrasion is reduced, and the service life is prolonged. The sawtooth-shaped or wave-shaped pit arrays are constructed and distributed on the bearing in the width direction in the state that few pit arrays are arranged at the two ends, and many pit arrays are arranged in the middle, shaft end running of a lubricating agent is reduced, sufficient lubricating of the bearing in the width direction is ensured, and the lubricating performance of the bearing is improved. Meanwhile, it can be guaranteed that the abrasion resisting performance of the bearing can be improved through the cylindrical pits, it can be guaranteed that the strength and precision of the bearing are not influenced, and the integral mechanical strength, rigidity and matching precision of the bearing are guaranteed by reducing the number of the pits as much as possible.

The invention discloses a dual self-holding optical fiber ribbon type wiring optical cable. The dual self-holding optical fiber ribbon type wiring optical cable comprises an optical fiber ribbon, reinforcement members, messenger wires and an oversheath. The wiring optical cable is symmetrical on the left and on the right; the optical fiber ribbon is disposed at the center of the wiring optical cable; the two messenger wires are respectively disposed at the left end and the right end of the wiring optical cable; the two reinforcement members are respectively disposed between the optical fiber ribbon and the corresponding messenger wires; and the oversheath is disposed at the peripheral side of the wiring optical cable. The wiring optical cable provided by the invention is large in cable core number, small in dimension and high in tensile strength, and can be applied to machine room wiring or fiber to the premise of indoor and outdoor buildings.

The invention belongs to the technical field of plasma surface processing and relates to a method for modifying the steel surface of a ship body by a plasma beam, which is to directly accomplish the modification of the steel surface of the ship body by one step of dry-process modification. The method comprises: aiming a spray gun for plasma modification at normal pressure at a steel workpiece part of the ship body to be processed, moving the spray gun at a level which is 10 to 20 millimeters above the surface of a workpiece at a constant speed and parallelly relative to the workpiece, spraying the plasma beam onto the surface of the steel workpiece of the ship body in a normal-pressure, normal-temperature and open environment, and performing the normal-temperature plasma modification of the surface of the steel workpiece of the ship body, wherein the plasma is one or more of the air, argon, nitrogen or functional gas which may be the mixed gas of ammonia gas, oxygen, silane gas, siloxane gas and acrylic acid and methylacrylic acid vapor. The process is simple, the flow is short, the controllability is high, the automation is high, the energy consumption is low, the industrial production is easy to realize, and the environment pollution is light.

The invention discloses vinyl ester resin for a fiber glass-reinforced plastic mold and a preparation method thereof. The vinyl ester resin is prepared from the following components in part by weight: 100 parts of epoxy resin, 15-20 parts of unsaturated monobasic acid, 0.1-0.3 part of catalyst, 0.03-0.06 part of polymerization inhibitor, 70-80 parts of styrene and 2-3 parts of alpha- vinyltoluene. The preparation method comprises the following steps of: feeding the epoxy resin in a reactor and raising the temperature to be 70-90DEG C; adding the catalyst and the polymerization inhibitor by stirring; continuously raising the temperature to be 105-115DEG C; dropping the unsaturated monobasic acid; after dropping, reacting at the temperature until the acid value of a reaction system is smaller than 20mgKOH/g; reducing the temperature to be 70-100DEG C and adding the styrene and the alpha-vinyltoluen; and fully stirring, cooling to the ambient temperature and filtering. The vinyl ester resin disclosed by the invention has shrinking percentage of less than or equal to 0.5 percent and is suitable for manufacturing high-grade fiber glass-reinforced plastic molds.

The invention discloses a square tube bending method. According to the square tube bending method, a square tube comprises a first wall body, a second wall body, a third wall body and a fourth wall body which are connected in sequence; a notch is formed in the square tube; a left tube body is arranged on the left side of the notch; a right tube body is arranged on the right side of the notch; the notch comprises a first opening, a second opening and a third opening; the first opening is formed in the first wall body; the second opening is formed in the second wall body; the third opening is formed in the fourth wall body; the square tube is folded towards the direction far away from the third wall body till the first opening, the second opening and the third opening are all closed and are all welded and fixed; and the angle between the left tube body and the right tube body is set to the required bending angle. The three surfaces of the square tube are cut to form the openings according to the design requirements; force is then applied, the surface, which is not cut but remained, of the square tube can be bent till the openings are overlapped, thereby the required angle is achieved; and then, the other three surfaces are welded, so that the strength of the whole square tube can be prevented from being influenced, any angle can be achieved, and thus the welding quality can be improved. The invention further discloses a fabricated bent square tube.

The invention discloses an environment-friendly non-stick pan surface treatment process. The treatment process comprises the following steps of 1), molding to form a microporous layer; 2), using a laser for scanning on the surface of a pan blank to form a plurality of microporous structures to obtain the microporous layer; 3), spraying a non-stick coating on the surface of the microporous layer, wherein the microporous structures are filled with the non-stick coating. The treatment process adopts a laser micro-porous forming technology for scanning the surface of the pan blank to form the dense and slender microporous structures to obtain the microporous layer, so that the superficial area of the pan blank is increased by folds, the microscopic roughness of the surface of the pan blank isimproved, when the non-stick coating is directly sprayed on the surface of the microporous layer, the microporous structures are filled with the coating to greatly increase the contact area between the non-stick coating and the microporous layer to improve the adhesion of the non-stick coating.