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54results about How to "Limit relative displacement" patented technology

Double-workpiece table long travel measurement apparatus and use method thereof

The present invention provides a two-workpiece table long travel measurement apparatus and a use method thereof, wherein the two-workpiece table long travel measurement apparatus is provided for real-timely controlling a position of a silicon wafer table or a mask table and other precision workpiece tables so as to carry out precise photoetching processing operation. The two-workpiece table long travel measurement apparatus comprises a coarse movement plane motor device, two guide rails, two long travel plane measurement devices and a control system. With the apparatus, the long travel plane measurement device can automatically move along a Y direction along with the workpiece table; and with the elastic buffer device in the long travel plane measurement device, when control of workpiece table long travel movement is subjected to failure, it can be ensured that the measurement sensor is not be damaged, the position signal of the workpiece table can be acquired and can be fed back to the control system of the apparatus to control the workpiece to reset back to the work zero position.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD

Bus bar and method for manufacturing bus bar

InactiveCN103392281ASuppresses the phenomenon of boundary heatingReduced conductive cross-sectional areaCoupling device connectionsBus-bar/wiring layoutsHardnessMechanical engineering
A bus bar includes a body having at least one bent portion and a plate-shaped or bar-like terminal located on at least one end of the body and formed of a material identical with a material of the body integrally with the body in a seamless manner. The terminal has a higher hardness than the bent portion.
Owner:TOGO SEISAKUSYO CORP

Turbomachine rotor assembly

A turbomachine rotor assembly comprising: a rotor disk (2) presenting slots (4) in its outer periphery; blades (14) fastened via their roots (16) in said slot (4); and shims (20) mounted between the blade roots (16) and the disk (2), each shim (20) comprising two branches (20A) and a base part (20B) interconnecting the branches, each branch (20A) being disposed between the bearing surface (16A) of a blade root (16) and the corresponding bearing surface (22A) of the disk (2); each branch (20A) being made of a first material presenting a first Young's modulus of value E, at any operating temperature in the operating temperature range of the shim (20). The rotor assembly includes pads (40) adhering to the bearing surfaces (22A) of the disk and / or to the bearing surfaces (16A) of the blade root, the pads (40) being made of a second material presenting a second Young's modulus of value lying in the range E / 20 to E / 5 at said operating temperature.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

Method for bonding new and old concrete interfaces by means of planting bars

The invention discloses a method for bonding new and old concrete interfaces by means of planting bars. The method includes steps of (1), checking the quality of a base material concrete, and carrying out roughening treatment on the surfaces of the base material concrete with the strength grade not lower than C20; (2), carrying out bar planting construction, including line snapping positioning, hole drilling, hole cleaning, glue injecting, bar planting and acceptance checking, on the base material concrete with the surfaces which are already subjected to roughening treatment; (3), pouring new concrete. The method has the advantages that parameters of the distance between the centers of every two adjacent planted bars, the anchoring depths of the planted bars, the distances from the edges of bar planting locations to the edges of the base material concrete, the relations between the diameters of drilled holes and the diameters of the planted bars and the like are reasonably optimized, and accordingly the purposes of enhancing the new and old concrete bonding strength, improving the stress performance, constraining relative displacement of the new and old concrete interfaces, enhancing the anti-shear ability, effectively controlling damage such as rutting, upheaval and reflection crack of the new concrete and prolonging the service lives can be achieved.
Owner:HEBEI UNIV OF TECH

Self-resetting three-way limiting rubber support

InactiveCN109577178ALimit horizontal relative displacementLimit relative displacementBridge structural detailsShape-memory alloyAlloy
The invention relates to a self-resetting three-way limiting rubber support which comprises an upper support plate (3), a lower support plate (14), rubber laminated layers and shape memory alloy stranded wires (8), wherein the rubber laminated layers are placed between the upper support plate (3) and the lower support plate (14), the shape memory alloy stranded wires (8) are arranged around the rubber laminated layers, and the two ends of the shape memory alloy stranded wires (8) are connected with the upper support plate (3) and the lower support plate (14). Compared with the prior art, the self-resetting three-way limiting rubber support has great shock absorption and limiting capacity under the effect of horizontal and vertical earthquakes, falling-off damage of bridges is prevented, meanwhile, self-resetting of the bridges during earthquakes can be accelerated, in addition, the energy-dissipating capacity is achieved, damage of piers is reduced to the greatest extent, and the restorability of the bridges is improved.
Owner:TONGJI UNIV

Bridge anti-seismic damper structure with rotational friction energy dissipation

The invention discloses a bridge anti-seismic damper structure with rotational friction energy dissipation. The bridge anti-seismic damper structure comprises a limiting piece, a friction rod, a friction ball, an air cylinder, a piston rod of the air cylinder and a fixed hinge support; the limiting piece is fixed above the side wall of a pier, and the friction rod is fixed in the limiting piece, penetrates through the friction ball and is connected with the friction ball; the bottom of the piston rod is connected with the friction ball, and one section of the top of the piston rod is located in the air cylinder; the top end of the air cylinder is hinged to the fixed hinge support; and the fixed hinge support is fixed at the bottom of a beam body. The bridge anti-seismic damper structure is reasonable in design; the friction ball and the friction rod are arranged, and earthquake energy is consumed by fully utilizing rotational friction caused by beam body displacement; and the air cylinder and the piston rod are arranged, so vibration energy of the bridge during earthquakes is absorbed through damping generated by compressed flowing of air, and relative large displacement of the bridge body and the bridge pier is limited. The bridge anti-seismic damper structure is simple in structure, convenient to construct and low in cost.
Owner:NANCHANG UNIV

Energy-dissipation connecting beams additionally provided with liquid inertial mass damper

The invention relates to an energy-dissipation connecting beam device used for a building engineering structure. The device comprises a left anti-seismic connecting beam, a right anti-seismic connecting beam, connecting end devices and a liquid inertial mass damper. The upper and lower ends of the liquid inertial mass damper and the anti-seismic wall connecting beams of a building structure are connected through the connection end devices correspondingly. The liquid inertial mass damper is vertically arranged between the left and right anti-seismic wall connecting beams. The energy-dissipation connecting beam device is composed of the anti-seismic wall connecting beam units, the liquid inertial mass damper and the mounting connecting devices, two joint mass units with the mass amplification effect of the liquid inertial mass damper are fully utilized to absorb energy, and a damper eddy current unit is utilized to dissipate energy. Through mounting units arranged on the liquid inertial mass damper and the left and right anti-seismic wall connecting beams, mounting and adjustment are convenient. According to the energy-dissipation connecting beam device, arrangement is convenient and flexible, the vibration energy can be effectively absorbed and dissipated, the energy-dissipation connecting beam device is especially suitable for bending type deformation structures, the additionally-arranged damper is small in actual mounting mass, and good application and popularization value is achieved.
Owner:TONGJI UNIV

Connecting device for floating bodies on water

The invention discloses a connecting device for floating bodies on water. The connecting device comprises a first base (11), a first connecting rod (12), a first hinge (13), a second base (21), a second connecting rod (22), a second hinge (23) and a rope chain (3). One end of the first connecting rod (12) is movably connected with the first base (11), and the other end of the first connecting rod (12) is connected with one end of the rope chain (3) through the first hinge (13). One end of the second connecting rod (22) is movably connected with the second base (21), and the other end of the second connecting rod (22) is connected with the other end of the rope chain (3) through the second hinge (23). The first base (11) and the second base (21) are used for being connected with different floating bodies on water respectively. By means of the connecting device for the floating bodies on water, the stability of the relative position of the floating bodies can be well ensured, huge stress cannot be continuously generated at the connecting part, and rotation is flexible.
Owner:PLA UNIV OF SCI & TECH

Laminated wood flooring and manufacturing method thereof

The invention discloses laminated wood flooring. The laminated wood flooring comprises an attaching veneer layer, a base material layer and a balancing layer. The attaching veneer layer and the balancing layer are located on the upper end surface and the lower end surface of the base material layer correspondingly, a plurality of grooves are formed in the upper end surfaces of the base material layer and the balancing layer, the grooves are oblique relative to the front end surface and the rear end surface of the base material layer, and warped structures corresponding to the positions and the shapes of the grooves are arranged on the lower end surfaces of the base material layer and the attaching veneer layer correspondingly. According to the laminated wood flooring, the warped structures corresponding to the positions and the shapes of the grooves are arranged on the lower end surfaces of the base material layer and the attaching veneer layer correspondingly, thus, the flooring layers are embedded with one another through the warped structures and the grooves, the connection strength is greatly enhanced, the grooves or the warped structures are oblique so that the flooring layers can be limited to conduct left-right and front-back relative displacement in the horizontal direction, and the integrality of a wood flooring structure is maintained.
Owner:合肥图森工业设计有限公司

Bogie axle box suspension device

The invention discloses a bogie axle box suspension device which comprises an axle box matched with an axle and rubber springs connected with a bogie frame. The axle box is of an integral structure. The axle box comprises a fixed bearing and an axle hole base matched with the axle. The rubber springs are arranged on two sides of the axle hole base respectively. A through kidney-shaped slot is formed in the bottom of the axle hole base. The axle box is further provided with a pull rod installation base, a first bearing platform, a second bearing platform, a shock absorber installation base and other structures, wherein the first bearing platform and the second bearing platform are used for fixing the rubber springs. The bogie axle box suspension device utilizes the rubber springs as axle box locating springs, and the rubber springs have the advantages of being asynchronous in vertical, horizontal and longitudinal stiffness and good in nonlinearity. The axle box is of the integral structure and provided with connecting structures, so that the technical requirements of a quick bogie are met. The kidney-shaped slot in the bottom of the axle hole base facilitates infrared axle temperature automatic detection. A supporting pull rod is connected with a diagonal axle box to form a radial mechanism, so that the overall performance of the bogie is better. The shock absorber installation base, an anti-skid device or a dustproof end cover, and other structures are included, so that the technical performance of the bogie is further improved.
Owner:CRRC MEISHAN

Hydraulic lining trolley template

The invention relates to the field of formwork for hydraulic lining trolleys, and specifically refers to a formwork for hydraulic lining trolleys, including a formwork and a door frame inside the formwork. The formwork includes a top arc formwork, a left arc formwork, and a right arc formwork formwork and formwork longitudinal beams, the formwork longitudinal beams are horizontally fixed on the inner wall of the top formwork, an oil cylinder is arranged between the lower end surface of the formwork longitudinal beams and the top beam of the portal frame, and the lower end surface of the formwork longitudinal beams There is also a limit bracket between the top beam and the upper end of the limit bracket is screwed and fixed to the lower end surface of the template longitudinal beam, and the lower end of the limit bracket is inserted into the top beam and fixed by screwing; The invention can not only limit the relative displacement between the formwork and the door frame, but also fully ensure the longitudinal positioning of the formwork and the door frame, which not only prevents the oblique deformation of the oil cylinder, but also ensures the overall strength of the formwork.
Owner:宁波市镇海正琊电子商务有限公司

Field simple assembly ultralong static load reference beam

The invention discloses a field simple assembly ultralong static load reference beam, comprising two beam bodies which are arranged in parallel, wherein length of each beam body is 12m at least, and a set position of a reference pile bearing the beam bodies can meet design requirements; each beam body is formed by abutting and assembling multiple splicing beams, namely the splicing beams are connected by virtue of a detachable connecting structure; and each splicing beam adopts an H-shaped I steel, and the upper flange, the lower flange and the web plate of the H-shaped I steel are respectively correspondingly connected by virtue of bolt connecting structures. According to the field simple assembly ultralong static load reference beam, the length of each beam body is determined by the set position of the reference pile, and the set position of the reference pile meets the design requirements, namely displacement of the reference pile is not required to be monitored at the moment, so that secondary observation is avoided, the reference pile is far away from a pier, a long enough distance is kept with a tested pile, and accuracy of test data of a pile foundation is guaranteed. The field simple assembly ultralong static load reference beam disclosed by the invention is simple in structure, simple and feasible, splicing can be completed on the scene quickly, working efficiency is higher, and stability is good.
Owner:GUANGDONG PROVINCIAL ACAD OF BUILDING RES GRP CO LTD

Rotary buckling type watch buckle and watch

The invention discloses a rotary buckling type watch buckle and a watch. The rotary buckling type watch buckle comprises a male buckle body and a female buckle body; the male buckle body is provided with a first buckling face facing the female buckle body, a groove is formed in the first buckling face, and a rotating part is arranged on the side, away from a first watchband, of the groove; the female buckle body is provided with a second buckling surface, a rotating groove is formed in the second buckling surface, and the rotating part can be screwed into the rotating groove; a fastener mounting groove is formed in the rotating groove, and a fastener is arranged in the fastener mounting groove and can be arranged in the fastener mounting groove in a rebounding mode; in the first state, therotating part enters the rotating groove; in the second state, the fastener partially enters a clamping groove, so that the male buckle body is fixed on the second buckling surface. By means of the two fasteners, the fasteners matched with the fasteners and other structures, on the basis of guaranteeing that the watch buckle is simple in structure and high in reliability, the purposes that the watch buckle is buckled through relative rotation, the locking force is increased, and the user perception experience is improved are achieved.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD

Novel energy-dissipation anti-dropping beam device

InactiveCN106381803AWill not affect the state of stressSimple structureBridge structural detailsEngineeringCantilever
The invention provides a novel energy-dissipation anti-dropping beam device. The novel energy-consumingdissipationate A (1), a connecting plate B (2), an E-shaped energy-dissipation element (3), a high-strength bolt (4), a main beam pre-embedded part (5), a pier pre-embedded part (6), restraining groove holes (7) of the connecting plate B (2) and restraining groove holes (8) of the connecting plate A (1), wherein the restraining groove holes (7), which are matched with the quantity and positions of cantilever limbs of the E-shaped energy-dissipation element (3), are machined on the connecting plate B (2); the length of the restraining groove hole (7) in the middle is smaller than the length of the restraining groove holes (7) at the two ends; the matched restraining groove holes (8) are machined at the positions, corresponding to the restraining groove hole (7) in the middle of the connecting plate B (2), on the connecting plate A (1), and matched screw holes or through holes are machined at the positions corresponding to the restraining groove holes (7) at the two ends. The novel energy-dissipation anti-dropping beam device has the characteristics of reasonable structural form, low manufacturing cost, easiness of mounting and replacing, good energy-dissipation performance and the like and has a good application prospect.
Owner:南通安洲制冷设备有限公司

Counterfort structure with anchorage

The invention discloses a counterfort structure with an anchorage. The counterfort structure comprises a counterfort, wherein a plurality of rib plates are arranged on one side, back to sea, of the counterfort along the longitudinal direction of a wharf, and reinforcing plates are arranged on the rib plates; an anchorage structure is arranged behind the counterfort, and the anchorage structure and the counterfort are connected through a pull rod to form an anchoring and pulling fixing structure for the counterfort; and a backfill layer is arranged behind the counterfort, and the pull rod and the anchorage structure are embedded in the backfill layer. According to the counterfort structure, the rib plates and the reinforcing plates are designed on one side, back to sea, of the counterfort, and meanwhile, the counterfort and the anchorage structure are connected by adopting the pull rod, so that the structural stability of a wall-mounted retaining wall can be enhanced, the relative displacement between a front rail and a rear rail is limited, a portal crane is safer to use, the later maintenance is reduced, and the width of a bottom plate required for stabilizing a gravity type structure can be reduced, and as a result, the concrete consumption and the engineering excavation amount can be reduced; the structure is particularly suitable for dry land construction, the engineering cost can be saved, and the construction period can be shortened.
Owner:CCCC FHDI ENG

Anti-seismic steel support for bridge

InactiveCN106906737AStrong anti-vertical lift-off abilityReduce beam end collision damageBridge structural detailsEngineeringAbutment
The invention discloses a anti-seismic steel support for a bridge. The anti-seismic steel support for a bridge comprises an upper support body connected with a bridge main beam and a lower support body which is connected with a bridge cover beam or a pier abutment; the anti-seismic steel support for the bridge further comprises a steel ball body which is arranged between the upper support body and the lower support body; a concave-arc-shaped upper connecting part, which is matched with the steel ball body, is arranged at a position, corresponding to the steel ball body, of the upper support body; a concave-circular-arc-shaped lower connecting part, which is matched with the steel ball body, is arranged at a position, corresponding to the steel ball body, of the lower support body; a spring is arranged between the upper support body and the lower support body and can move relatively; and wear-resisting layers are arranged on surfaces of the upper support body and the lower support body. The anti-seismic steel support for thebridge disclosed by the invention is simple in structure, clear in force transmission path and small in manufacturing and machining difficulty; and the support can have various functions of self-resetting, multidirectional limitation, vertical lifting prevention capability and the like.
Owner:SOUTHWEST JIAOTONG UNIV

Mounting structure and method for guide bar of stay cable

The invention relates to the technical field of the mounting of stay cables, in particular to a mounting structure and method for a guide bar of a stay cable. The mounting structure comprises a guideframe and a construction platform, wherein the guide frame sleeves the stay cable; the construction platform can be driven by a traction device to move in the axial direction of the stay cable; the guide frame is hinged to the construction platform in a manner that the guide frame can be rotated around the axis of the stay cable; a welding device for welding the guide bar to the outside of the stay cable is arranged on the guide frame; and a circumferential adjusting device for driving the guide frame to rotate around the axis of the stay cable is arranged between the construction platform andthe guide frame. The mounting structure for the guide bar, provided by the invention, has the advantages of simplicity, high efficiencies and precisions of welding and mounting, simple welding and mounting processes and low input costs of human and material resources, greatly facilitates the operation of constructors, and has great promotion value.
Owner:CCCC SECOND HARBOR ENG +1

Damping device for hole-digging machine for nursery stock planting and hole-digging machine

The invention discloses a damping device for a hole-digging machine for nursery stock planting and a hole-digging machine, belongs to earth drilling equipment and aims to effectively reduce the vibration of a handrail frame of the hole-digging machine for nursery stock planting. The hole-digging machine comprises a gasoline engine, a speed reducer, a drill bit and the damping device for the hole-digging machine for nursery stock planting, wherein the damping device for the hole-digging machine for nursery stock planting comprises a handrail frame and a damping base; a left fork rack and a right fork rack are fixed on the damping base; four connecting rods are hinged between the left fork rack and the handrail frame as well as between the right fork rack and the handrail frame; a damper ishinged between the damping base and a cross beam of the handrail frame; a damping spring is sleeved on the damper. The damping device is capable of effectively reducing the vibration of the handrail frame of the hole-digging machine for nursery stock planting in the working process and the nursery operator can conveniently dig holes.
Owner:SICHUAN GUANTENG TECH CO LTD

A road bridge crack repair and reinforcement device for construction engineering

The invention discloses a repairing and reinforcing device for cracks in road bridges used in construction engineering, and relates to the technical field of crack repairing in roads and bridges; in order to solve the problem of poor repairing effect of large cracks; it specifically includes a main body, a waterproof mechanism, a primary fixing mechanism and a secondary fixing mechanism. Fixing mechanism, the outer wall of one side of the main body is welded with a first connecting plate, and the outer wall of the other side of the main body is welded with a third connecting plate; the outer wall of the top of the first connecting plate is provided with a first connecting hole; the third connecting plate The top outer wall is welded with a third connection hole. In the present invention, by arranging the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate, when multiple repairing reinforcement devices are used, they can be tightly and firmly connected, thereby enhancing the fixing effect on large-sized cracks; through The arrangement of the washer and the washer groove can further limit the relative displacement between the various repairing reinforcement devices, thereby enhancing the firmness of the connection between the various repairing reinforcement devices.
Owner:淮北淮海建设工程有限责任公司

Assembly type concrete building connecting structure

The invention relates to the field of assembly type buildings, and particularly discloses an assembly type concrete building connecting structure. The assembly type concrete building connecting structure comprises a building body, a circle of step-shaped step groove is formed in the upper end of the building body in the circumferential direction, mounting grooves are formed in the four corners ofthe step groove correspondingly, hydraulic moving devices used for moving the adjacent building bodies are detachably arranged at the bottoms of the mounting grooves, and an annular inner edge protrusion matched with the step groove is arranged at the bottom of the building body. The assembly type concrete building connecting structure aims to solve the technical problem of infirm connection of concrete buildings.
Owner:TAIZHOU UNIV

Filling mould module and construction method thereof

The invention provides a filling mould module and a construction method of the filling mould module. The filling mould module comprises a panel (1), a side plate (2) and an abutting plate (3), wherein convex ribs (5) with 45-degree outer inclined surfaces are arranged on two free sides of the panel (1); the abutting plate (3) and the side plate (2) are vertical to the panel (1), and the included angle formed by the abutting plate (3) and the side plate (3) is 45 degrees; and two modules are abutted face to face to form a maintenance seam (4). In a construction process of floors, single box body or four box bodies as a group are firmly arranged in a horizontal dual-direction clearance manner or one-way clearance one-way tight manner; and the clearance is paved with reinforcement, and then cast with concrete. In the construction process of the wall body, two modules are rotated by 90 degrees face to face to be buckled together to be a box-shaped building block; and the box-shaped building block is built by staggering one half of the width on each layer. The filling mould module and the construction method of the filling mould module have the advantages of being high in the industrialization production degree and simple in filed construction process, thereby the defects of long working period, complicated process and the like in the prior art are made up.
Owner:盐城市双新建设投资有限公司

Long-toe single-row caisson wharf structure with anchorage

The invention discloses a long-toe single-row caisson wharf structure with an anchorage. The long-toe single-row caisson wharf structure comprises a caisson and an upper structure, wherein the bottom of the caisson is provided with a front toe which extends forwards towards the sea side; a reinforcing plate and at least one bin are arranged in the caisson; an anchorage structure is arranged behind the caisson; the anchorage structure is fixedly connected with the caisson through a pull rod; a backfill layer is arranged behind the caisson; and the pull rod and the anchorage structure are buried in the backfill layer. According to the long-toe single-row caisson wharf structure, the caisson is connected with the anchorage structure through the pull rod on the side, back to the sea, of the caisson, so that the structural stability of the caisson can be enhanced, the relative displacement between a front rail and a rear rail is limited, a portal crane is safer to use, and the later maintenance is reduced; in order to meet the requirement of the stability of the conventional gravity type structure, a certain width-height ratio is required to be achieved, and the width of a bottom plate required by the stability of the gravity type structure can be reduced by adopting the pull rod and the anchorage structure, so that the concrete consumption and the engineering excavation amount can be reduced; and the structure is particularly suitable for dry land construction, the engineering cost can be saved, and the construction period is shortened.
Owner:CCCC FHDI ENG

Novel support for releasing constraint during earthquake

PendingCN113652957ARelative displacement is no longer restrictedRealize the function of shock absorption and isolationBridge structural detailsRelative displacementGeotechnical engineering
The invention relates to the technical field of bridge seismic mitigation and isolation, and particularly discloses a novel support for relieving constraint during earthquake. The novel support comprises an upper support plate, a middle support plate and a lower support plate which are sequentially arranged from top to bottom, a first friction pair is formed between the upper support plate and the middle support plate, and a second friction pair, a restraining block located at the bottom of the upper support plate and used for limiting relative displacement of the upper support plate and the middle support plate, and a restraining driving mechanism connected with the restraining block are formed between the middle support plate and the lower support plate. Limiting constraint can be actively released when an earthquake occurs, and the earthquake reduction and isolation function is achieved through the pendulum effect of the middle support plate.
Owner:CHENGDU XINTU TECH +1

Bamboo fiber and chemical fiber interwoven fabric and weaving method

The invention provides a bamboo fiber and chemical fiber interwoven fabric and a weaving method. The fabric is formed by interweaving warp yarns and weft yarns, wherein the warp yarns adopt synthetic fibers, the weft yarns adopt bamboo fiber yarns, and the fabric is a warp satin weave. According to the bamboo fiber and chemical fiber interwoven fabric and the weaving method, the crease resistance of the fabric is improved through adjustment of warp and weft and different finishing methods, and the fabric has good air permeability, is stable in forming, soft, comfortable, mould-proof, antibacterial and deodorant.
Owner:HEBEI YIKANG FUNCTIONAL MATERIALS CO LTD

Waste gas bypass valve assembly for supercharger and vehicle

The invention discloses a waste gas bypass valve assembly for a supercharger and a vehicle. The waste gas bypass valve assembly for the supercharger comprises a volute and a waste gas bypass valve component; the waste gas bypass valve component is arranged on the opening side of a waste gas bypass hole in the volute and can be turned over and opened towards one side; and a limiting protrusion is arranged on the inner side wall of the volute close to the waste gas bypass valve component. When the waste gas bypass valve component is opened to the maximum angle, the limiting protrusion is in interference fit with the waste gas bypass valve component. According to the invention, durable reliability of products can be guaranteed, and noise of the waste gas bypass valve is reduced.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

A kind of manufacturing method of bamboo fiber non-iron shirt

The invention discloses a method for making a bamboo fiber no-ironing shirt. The method comprises the steps that first bamboo fiber fabric is placed into souring and bleaching liquid and is soured and bleached for 30-60min, wherein souring and bleaching temperature is 90-100 DEG C, a liquor ratio is 1: 30-35, the souring and bleaching liquid contains 30% of hydrogen peroxide with concentration being 6-10g / L, sodium silicate with the concentration being 5-10g / L, penetrating agents with the concentration being 5-8g / L, scouring agents with the concentration being 3-5g / L and oxygen bleaching stabilizer with the concentration being 5-8g / L; the bamboo fiber fabric is cleaned and dried after the scouring and bleaching, then the processed bamboo fiber fabric is tailored and sewed and a ready-made garment is obtained; then a no-ironing treatment is carried out on the manufactured garment, wherein according to the no-ironing treatment, bidirectional stereoscopic type atomization resin absorption, pre-drying, medium or high temperature micro-pressure stereoscopic shaping and finishing, washing, drying, cooling and re-shaping are conducted on the garment. The method for making the bamboo fiber no-ironing shirt can effectively improve the crease-resistant property of bamboo fiber and have a better shrink-proof and no-ironing effect, a manufactured shirt has the advantages of being not deformed easily, and not easy to shrink and the shirt is not easily deformed, not easy to shrink and yellowing, stable in size, soft in handle, uniform in color and lustre, and cool and comfortable to wear.
Owner:YUNNAN HAOXIANG CLOTHING CO LTD

A method for bonding new and old concrete interfaces with planted bars

The invention discloses a method for bonding new and old concrete interfaces by means of planting bars. The method includes steps of (1), checking the quality of a base material concrete, and carrying out roughening treatment on the surfaces of the base material concrete with the strength grade not lower than C20; (2), carrying out bar planting construction, including line snapping positioning, hole drilling, hole cleaning, glue injecting, bar planting and acceptance checking, on the base material concrete with the surfaces which are already subjected to roughening treatment; (3), pouring new concrete. The method has the advantages that parameters of the distance between the centers of every two adjacent planted bars, the anchoring depths of the planted bars, the distances from the edges of bar planting locations to the edges of the base material concrete, the relations between the diameters of drilled holes and the diameters of the planted bars and the like are reasonably optimized, and accordingly the purposes of enhancing the new and old concrete bonding strength, improving the stress performance, constraining relative displacement of the new and old concrete interfaces, enhancing the anti-shear ability, effectively controlling damage such as rutting, upheaval and reflection crack of the new concrete and prolonging the service lives can be achieved.
Owner:HEBEI UNIV OF TECH
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