35results about How to "Good bite performance" patented technology

Metal titanium and titanium alloy are widely applied to implants of oral prosthodontics, orthopedic surgery and plastic surgery at present, but have the problems of having poor osseous integration capability and being prone to have bacterial infection after implantation. The invention discloses a titanium and titanium alloy surface micro-nano structure modification method, and aims to improve theosseous integration capability and antibacterial capability of titanium and titanium alloy surfaces. The micro-nano structure modification method is characterized in that a femtosecond laser processing technology is adopted, the polished titanium alloy surface is ablated to form a micropost periodic structure with the spacing and the depth not greater than 200 microns, nanotubes with the diameterssmaller than 200 nm are prepared on the micropost periodic structure in an anodic oxidation mode after further acid pickling, and then annealing heat treatment is carried out to obtain a final sample. According to the method, the surface with a micro-nano structure can be prepared on the titanium and titanium alloy surfaces, and the titanium and the titanium alloy with such surfaces have good biocompatibility and antibacterial capability.

An occlusive pipe construction method comprises the following steps: constructing reinforced concrete piles in advance; constructing full-plain concrete piles by using a manual construction mode among piles after the reinforced concrete piles are solidified to a certain strength, wherein the full-plain concrete piles and the reinforced concrete piles are mutually occluded. According to the method, the reinforced concrete piles are constructed in advance, then the full-plain concrete piles are constructed manually without cutting the bodies of the reinforced concrete piles, and the constructing processes of the reinforced concrete piles and the full-plain concrete piles are relatively independent of each other and do not interact; in addition, strict requirements on time can be avoided as the construction of the reinforced concrete piles can be carried out without judging the forming states of the full-plain concrete piles first; the technology difficulty is greatly reduced, and the construction of manual hole shaping is free of strict shape requirements; construction manners can be flexibly changed when a rocky stratum is encountered during construction, the rocky stratum can be rapidly penetrated, the hole shaping quality can be controlled conveniently, and the occlusive effect is better than that of the traditional construction manner.

The invention discloses a steel box component. The component is mainly composed of a U-shaped steel piece, n-shaped steel pieces and a steel tube which is arranged at a mid-span position of the U-shaped steel piece. The n-shaped steel pieces are arranged in U-shaped space at two ends of the U-shaped steel piece, the length directions of the n-shaped steel pieces are consistent with the longitudinal direction of the U-shaped steel piece, the lower ends of inner side plates of the n-shaped steel pieces are fixed on a bottom plate of the U-shaped steel piece and surround with the bottom plate of the U-shaped steel piece to form hollow pouring chambers with inner and outer ports, and pouring holes are opened on top plates of the n-shaped steel pieces. Vertical sealing plates are arranged at inner end openings of the pouring chambers, the steel tube is arranged in a suspension mode, steel openings at the two ends of the steel tube are connected onto the sealing plates respectively and blocked by the sealing plates; and gaps are arranged between the U-shaped steel piece and the n-shaped steel pieces and between the U-shaped steel piece and the steel tube. The invention further discloses a steel box-concrete combined U-shaped girder composed of the steel box component. By means of the steel box component and the steel box-concrete combined U-shaped girder composed of the same, the construction cost is saved, the construction period is shortened, the bearing capacity and the bending resistance at the girder support position are improved, and the reinforcement area and about 25% of dead-weight are reduced.

The invention discloses a combined paper cutter tool characterized by comprising an upper cutter blade and a lower cutter blade which are respectively arranged on an upper cutter shaft and a lower cutter shaft, wherein the upper cutter blade is arranged on a cutter rest; a spring is arranged between the upper cutter blade and the cutter rest; the upper cutter blade is provided with a retainer ring; and the cutter rest, the spring and the upper cutter blade are limited and fixedly connected by the retainer ring. The invention has the advantages of simple structure, convenience of installation and removal, and high processing accuracy.

The invention discloses a bright aluminum foil MYLAR conductive tape for electromagnetic wave shielding and a preparation method thereof. Bright aluminum foil MYLAR is processed and the substrate surface of a base material is coated with a functional coating; the preparation method is simple and easy to realize; the bright aluminum foil MYLAR conductive tape used for electromagnetic wave shielding and having characteristics of excellent flexing resistance, good occlusion property and superior compound property and conductivity is obtained; the conductive tape is very outstanding in electric property and physical property, thereby having a good market application prospect.

The invention discloses split-joint pliers with replaceable set teeth, and the split-joint pliers are composed of set teeth, and pincers slices symmetrically arranged and mutually hinged, wherein the pincers slices are in detachable connection with the set teeth. The split-joint pliers with replaceable set teeth have the advantages of simple and stable structure, easy maintenance and low cost.

The invention relates to a comfortable fabric and its dyeing process, which is characterized in that it comprises a first fabric layer, a second fabric layer and a third fabric layer, and the second fabric layer is located between the first fabric layer and the third fabric layer The two sides of the second fabric layer are provided with protrusions with a regular triangle cross section, the first fabric layer is provided with a first groove with a regular triangle cross section on the side facing the second fabric layer, and the third fabric layer faces the side of the second fabric layer. One side is provided with the second groove that cross-section is equilateral triangle, and the protrusion of the second fabric layer matches with the first groove of the first fabric layer and the second groove of the third fabric layer respectively, and the first fabric layer The air holes of the lower layer are opened on the top, and the air holes of the upper layer are opened on the third fabric layer. A comfortable fabric and its dyeing process have good bite performance, do not use any chemical adhesives, are environmentally friendly, soft in texture, and comfortable to wear.

The invention relates to an anti-biting pet toy material and a preparation method thereof. The material comprises the following components in parts by weight: 70-85 parts of thermoplastic elastomer, 2-20 parts of a scent attractant, 5-15 parts of a biocompatible agent, 1-10 parts of an interface modifier, 0.5-6 parts of a nano modifier and 0.3-1 part of other auxiliary agents. The anti-biting pettoy material has the characteristics that the material resists biting of a pet, smells good, is non-toxic, and is high in safety, and the product does not shrink or deform; and meanwhile, with the aidof the synergistic effect of the nano modifying agent and the biocompatible agent, mixed dispersion of the components of the material is improved, the interface binding strength of the components isenhanced effectively, a toy which is uniform in inside and outside, has high tearing strength, can be bit by the pet, and can give out smell attracting the pet, the effect is stable, and migration hidden dangers are avoided.

The invention relates to the technical field of landslide construction, in particular to an anti-landslide device for a deep foundation pit and a using method of the anti-landslide device. The anti-landslide device is applied to fix a slope, the slope comprises an inclined plane, threaded deep holes are vertically formed in the inclined plane at equal intervals, and a channel is formed in the bottom end of the slope. The anti-landslide device comprises a base, a vibration absorption fastener and a covering plate, wherein the base is coaxially arranged in the channel; the vibration absorption fastener comprises fixing heads, fastening steel rods, concrete threaded columns, yielding buffer parts and fixing abutting parts, the fixing heads are arranged in the threaded deep holes, and in the working state, the concrete threaded columns are formed by pouring concrete into the threaded deep holes; the fixing abutting parts are coaxially arranged at outlets of the threaded deep holes, and theouter ends of the concrete threaded columns abut against the other abutting ends of the fixing abutting parts; and the covering plate is arranged on the slope face, the fastening steel rods penetratethrough the covering plate to be elastically connected with the covering plate through the fixing abutting parts in a fastened mode, and the bottom end of the covering plate abuts against the top endof the base. The device is stable in structure, sliding of landslide soil can be effectively prevented, and vibration force can be eliminated.

The invention discloses a production method of a nanocomposite surface piston ring. The method comprises the following steps: performing degreasing to a piston ring blank made of cast iron substrate before planting, cleaning the surface of the blank, performing sand blasting to the blank, adding the piston blank into electroplate liquid I to be subjected to reverse etching, adding the blank subjected to reverse etching into electroplate liquid II to be subjected to electrolytic deposition till the thickness of nano-coating formed on the outside circle surface of the blank is 0.06 to 0.12mm, and adding a semi-finished piston ring into a grinding cylinder to grind the semi-finished piston ring till the thickness of the nano-coating is 0.04 to 0.10mm to form a finished piston ring. According to the method, a nano wild phase with high wearing resistance, corrosion resistance, good tenacity and self-lubrication to replace micron-sized traditional solid particles to modify the surface of the piston ring, an electric pulse technology is adopted to realize the nanocrystallization of Ni-P crystal grain on the surface of the piston ring, and nano-coating with the nano-phase embedded uniformly further improves the tenacity and the wearing resistance of the surface of the piston ring.

The invention relates to a rice seedling transplanter. The rice seedling transplanter comprises a traveling mechanism, a driving mechanism, a separate planting mechanism and a seedling conveying mechanism, wherein the traveling mechanism comprises a rubber caterpillar track, an anti-sinking plate and a chassis and is applicable to different pavements, the rice seedling transplanter is prevented from being get stuck in a rice seedling bed, and the steady advancing of the rice seedling transplanter in the seedling planting process is ensured; the driving mechanism adopts belt driving and has the advantages of steadiness in driving and low cost; the separate planting mechanism adopts a chain wheel to drive a group of crank and slide rod mechanism to move, a slide rod is provided with a seedling separating fork for realizing a seedling separation action, not only can quick-return characteristics be achieved, but also the seedling separating fork is enabled to have almost constant-speed movement in a working stroke, the seedling separating efficiency is high, and the empty rate is relatively low; and the seedling conveying mechanism is formed by connecting a linkage mechanism, a ratchet wheel mechanism and a group of rubber crawler-track conveyor belt wheel, the length of a crank can be adjusted to control a rotating angle of a ratchet wheel so as to control a feeding amount of the crawler belt wheel, and the rice seedling transplanter has the characteristics of high controllability, stability in feeding, applicability to seedlings with different soil amounts and the like.

The invention discloses a side undercutting mechanism for a side plate of an automobile radiator. The side undercutting mechanism comprises a frame, an upper template, a lower template and a bedplate, wherein the upper template is connected with a piston rod of a first hydraulic oil cylinder; the lower template is arranged on the bedplate; the bedplate is movably arranged on the frame. The side undercutting mechanism is characterized in that an upper undercutting knife and a side push block are arranged on the upper template; the side push block is arranged on one side of the upper undercutting knife; the inner side of the end part of the side push block is provided with an inclined plane; a lower undercutting knife and a side propping plate are arranged on the lower template; the side propping plate is arranged on the lower template in a sliding way; a top block matched with the inclined plane is arranged on the side propping plate; the lower undercutting knife which corresponds to the upper undercutting knife is fixed on the lower template; the side push block is connected with a depression bar. According to the side undercutting mechanism, the side plate on the radiator can be meshed on the radiator, so that a good undercutting effect, high production efficiency and high generality are achieved; moreover, the side undercutting mechanism is convenient, safe and reliable to operate.

The invention relates to a soft fabric and a spinning technology thereof. The fabric is characterized in that fabric layers of the fabric are connected through spinning yarn, and each fabric layer is formed by interweaving and blending warp yarn and weft yarn; viscose is adopted as the warp yarn, the fineness is 126-185 dtex, and the warp density is 34.2-38.5 pieces per centimeter; copper ammonia fiber is adopted as the weft yarn, the fineness is 112-228 dtex, and the warp density is 29.8-43.8 pieces per centimeter; a fabric block is covered with a lace layer, a fluff layer is arranged on the bottom face of the fabric block, an anti-static layer is arranged on the bottom face of the fluff layer, and lower-layer air holes are formed in the anti-static layer. According to the soft fabric and the spinning technology thereof, the good meshing performance is achieved, and no chemical adhesive is used in the whole process, so that environmental friendliness of the fabric is improved, the texture is soft, and wearing is comfortable.

The invention discloses an anti-creeping electric heating plate for the breeding industry, which comprises a structure reinforcing layer, a heating layer, a thermal insulation layer and a power supplyconnecting structure, and is characterized in that a temperature sensor, a first copper nut, a second copper nut and the heating plate are integrally formed by die-casting an SMC composite material,so that the waterproof and anti-creeping performance of the anti-creeping electric heating plate for the breeding industry is improved, and meanwhile, the spring sleeve and the heat shrink tube are arranged, and the anti-creeping and animal biting-off prevention performance is further improved.

The invention provides a crawler belt for agricultural machinery, which comprises a ring-shaped crawler body, strip-shaped long pattern belts and short pattern belts are arranged on the outer surface of the track body, the length of the long pattern belt is longer than that of the short pattern belt, and the long pattern belt and the short pattern belt The belts are alternately spaced and arranged at equal intervals. Both the long pattern belt and the short pattern belt are provided with multiple diamond-shaped bumps that protrude outward and are of equal thickness. The drive grooves are equally spaced around the inner surface of the crawler body; the long pattern belts and short pattern belts of the present invention are alternately arranged at intervals, and the diamond-shaped bumps provided have anti-slip and wear-resistant properties, which prolongs the service life of the crawler belt.

Provided is a cutting tool capable of improving both the biting property to a work material and the chip discharge property. The cutting tool includes a drill body rotated about a central axis, four or more cutting edges formed on one end portion of the drill body to face a forward side of a rotation direction, and a flute groove that is formed between the cutting edges adjacent to each other in a circumferential direction and extends substantially spirally along the central axis. (1) The one end portion includes a first tip portion that includes the central axis and has a first tip angle, and a second tip portion that extends from the first tip portion to an outer peripheral edge of the drill body and has a second tip angle larger than the first tip angle, and (2) the drill body includes a first core thickness portion that is formed in such a manner that a core thickness thereof gradually decreases from the one end portion to the other end portion, and a second core thickness portion that is formed in such a manner that a core thickness thereof is constant from the first core thickness portion toward the other end portion.

The invention relates to the technical field of deep backfilled stone layer waterproof curtain construction and discloses a deep backfilled stone layer waterproof curtain dth hammer and follow-pipe occlusion comprehensive construction method which comprises the following steps: S1, construction preparation: carrying out ground leveling, positioning and paying off, and enabling construction equipment and machines and tools to enter the construction site; S2, guide wall construction; S3, shoe welding; S4, installation of a guard barrel and a dth hammer in position; S5, enable the dth hammer andthe follow-pipe to realize occlusion to drill a hole and a final hole; S6, mounting and placing a pouring guide pipe; S7, pouring underwater concrete to form a pile; and S8, adopting a vibratory hammer to pull the guard barrel. The construction method has the following benefits: the hole forming efficiency is high, when the waterproof curtain realizes occlusion to form a pile, the entire guard barrel follows to realize occlusion, the cutting perpendicularity is controlled well, the occlusion effect is excellent, the problems that the traditional construction technology of the deep backfilled stone layer is slow in construction progress and difficult in pile forming are effectively solved; and the ultra high wind pressure enables the broken rock slag to be blown out of the holes at one time, so that repeated crushing of the rock slag in the holes is reduced, and the hole forming speed is more than five times of that of rotary excavating drilling, so that the hole forming speed is greatly accelerated, the pile forming quality is high, and the comprehensive cost is low.

The invention discloses a track bed surface waterproof layer expansion joint structure. The track bed surface waterproof layer expansion joint structure comprises a caulking plate, a backing material,hollow elastic neoprene tubes and a sealant layer which are arranged in an expansion joint from bottom to top; the backing material is prepared through the following steps that acetone and epoxy resin are mixed and stirred to be uniform, then iron powder and aluminum powder are added and stirred to be uniform, the mixture is subjected to standing for 2 h, part of bubbles are discharged, then triethylene tetramine is added and rapidly stirred to be uniform, the mixture is poured into a mold and subjected to standing for 25-35 min at 20-30 DEG C, and then heat preservation is performed for 2.5-3.5 h at 100 DEG C. The track bed surface waterproof layer expansion joint structure is a multilayer structure and is good in waterproof sealing effect, high in durability and higher in structural strength.