92results about How to "Sufficient tensile strength" patented technology

Electrical cables for the transmission of electricity between power poles or towers with at least one of a cooling feature and a fail safe feature and methods of producing the same.

This invention describes novel methods and devices for stabilizing and retracting tissue during surgery, in particular internal tissue. Patches of material, preferably biodegradable, are adhered to tissue surfaces. By manipulation of the patches, for example directly with forceps, or via sutures attached to the patches, tissues can be retracted or otherwise manipulated with minimal trauma to the tissues. The method is especially useful in minimally-invasive surgery.

An elongated strap with a first and second connecting snap to support one or a plurality of hanging items. Each end of the strap is folded on itself and snapped in position along the interior of the strap, forming two closed loops. The first loop may be secured by hand or to an external support, such as a vehicle seat headrest, a shopping cart or similar structure. The second loop passes through the handles of reusable grocery bags, hand bags or totes to securely hold and organize the items. The strap itself is a high strength material that can support the load of the suspended items and is adorned with a decorative pattern or color on its outer surface. In use, the device is intended to organize empty grocery totes along the outer rim of a grocery cart while shopping, as well as organize and store empty totes on the backside of a vehicle seat.

The invention discloses a hot rolled steel strip for heat stamping and shaping and a production method thereof. The hot rolled steel strip is prepared from the following components according to mass percent: 0.20 to 0.25% of C, 0.15 to 0.35% of Si, 1.20 to 1.50% of Mn, 0.10 to 0.50% of Cr, less than or equal to 0.020% of P, less than or equal to 0.010% of S, 0.030 to 0.050% of Als, 0.030 to 0.050% of Ti, less than or equal to 0.0060% of N, 0.0020 to 0.0050% of B and Fe and inevitable impurities as the rest. The production method comprises the following steps of pretreating hot metal, smelting with a converter, performing LF refining and slab continuous casting, heating, rolling, cooling and coiling; steel plate components and processes are optimized, slow cooling after rolling is adopted, and the coiling temperature and the coiling tension are set. The problems of casting slab cracks, flat coils and the like are solved, and the steel strip with good mechanical homogeneity for the heat stamping and shaping is obtained.

An elastic core bar for a bent pipe comprises a core shaft used for supporting a straight pipe section and a plurality of core balls used for supporting a bent pipe section. The core shaft and the core balls are connected through an elastic body. The fixed end of the elastic body is fixed into the core shaft. The free end of the elastic body penetrates through the core balls in sequence, and a clamping positioning block limiting the displacement of the core balls is arranged at the end of the free end. The distance between two end faces of the core balls is defined as the thickness of the core balls. The thicknesses of the core balls are not consistent. The characteristics of a squillid body structure are used for reference, the spherical core balls are designed and connected through the elastic body, the wall of a pipe fitting can be more stably supported when small bent radius bending forming is carried out on the thin-wall pipe fitting, the friction force with the pipe fitting is smaller, and the quality of the bent pipe fitting is better.

The invention discloses a preparation method of ULPA super performance air filter material, including the following steps: step (1), 20-30wt% of glass fiber with average diameter of 0.1-0.3 Mum, 28-35wt% of glass fiber with average diameter of 0.4-1 Mum, 15-20wt% of glass fiber with average diameter of 5-7 Mum and 20-30wt% of long glass fiber with average diameter of 15-20 Mum are dispersed in water by beating, mass concentration of size is controlled to be 4.5-5.5%, acidity is controlled to be pH 2.1-2.6, and time of beating is controlled to be 40-48min; step (2), size obtained by the step (1) is diluted and stored; step (3), paper is made; step (4), sizing is carried out; step (5), drying is carried out. The invention has the advantages of high poriness, high clogging capacity and high efficiency.

The invention relates to a cold tandem mill strip steel edge trimming controlling method and belongs to the technical field of cold tandem rolling devices. According to the method, based on existing cold tandem mill lines, a small crescent punched edge with a punched edge depth of 70mm and a large crescent punched edge with a punched edge depth of 120mm are set; when the width difference of strip steel in the front and rear of a welding seam is in a range from 0mm to 75mm, a notcher is controlled to perform a small crescent edge punching at a position of the welding seam, and a circle shear is controlled to perform an edge trimming at the position of the welding seam; when the width difference of strip steel in the front and rear of the welding seam is larger than 75mm and the front and back strip steel is narrow in front and wide in back, the notcher is controlled to perform the small crescent edge punching at a position 1050+/-30mm in the front of the welding seam, and the circle shear is controlled to perform the edge trimming at a position 1150+/-30mm in the front of the welding seam; if the front and back strip steel is wide in front and narrow in back, the notcher is controlled to perform the small crescent edge punching at a position 850+/-30mm in the rear of the welding seam, and the circle shear is controlled to perform the edge trimming at a position 750+/-30mm in the rear of the welding seam; and otherwise existing processes are performed. According to the method, the small crescent edge punching is innovated, the edge punching position and depth of the notcher and the edge trimming position of the circle shear are respectively judged and adjusted according to the width difference of strip steel in the front and rear of the welding seam, and thereby a sufficient tensile strength of the strip steel at the position of the welding seam can be guaranteed so as to prevent strip breakage.

The invention discloses a slip vibration isolation support which comprises an upper support and a lower support. The upper support is supported by the lower support, and interlayer surfaces are arranged between the upper support and the lower support; the upper support and the lower support are both filled with lead core rubber and internally provided with annular permanent magnets in a staggered mode, and the upper permanent magnet and the lower permanent magnet are both arranged to be close to the interlayer surfaces so as to provide sufficient magnetic induction intensity; the vibration support adopts aluminum plates as the interlyaer surfaces, outer sealing is conducted through annular steel tanks, and the interlayer surfaces are covered with polytetrafluoroethylene plates. Compared with a traditional vibration isolation support, the internally arranged magnet type vibration isolation support has the advantages of being small in abrasion, high in sensitivity, good in filtering property, high in energy consumption, small in impact effect, high in self reset capacity, capable of saving space, good in tensile property and the like, and important significance in solving the technical problems that deformation of the vibration isolation support of the area with high seismic intensity is too large, the impact effect is significant, and the tensile property is weak is achieved.

The invention relates to a composite acetate fiber non-woven material applicable to cigarette filters and a preparation method of the composite acetate fiber non-woven material. The composite acetatefiber non-woven material is prepared by mixing acetate fiber and other fibers, wherein the other fibers is one, two or three of polylactic acid fibers, metal fibers and carbon fibers. The composite acetate fiber non-woven material comprises 5-99wt% of cellulose acetate fibers and 1-95wt% of non-acetate-fiber material. The preparation method includes: opening the cellulose acetate fibers, mixing with the non-acetate-fiber material, carding, lapping, and performing spunlace to obtain the acetate fiber non-woven material. The acetate fiber non-woven material has a certain heat absorption effect and certain filtering performance and can lower smoke temperature and filter harmful components in smoke. After fiber mixing, the tensile strength of the non-woven material is enhanced, and the strength requirement of the cigarette filters produced by the non-woven material can be satisfied. The composite acetate fiber non-woven material can be used to produce incombustible cigarette filters.

The invention relates to a transparent PE label film. The transparent PE label film comprises an outer film layer, a middle film layer and an inner film layer; the outer film layer and the inner filmlayer are prepared from 68.5-70.5 wt% of LDPE, 29-31 wt% of casting-level HDPE and 0.2-0.8 wt% of PPA, and the middle film layer is prepared from 44-46 wt% of film-blowing-level HDPE, 53.5-55.5 wt% ofLDPE and 0.2-0.8 wt% of PPA. The invention further provides a production method of the transparent PE label film. The transparent PE label film has the advantages of being low in crystal point, freeof surface precipitation, high in stiffness and resistant to yellowing, and the printing and use requirements are met.

For meeting the requirement that when the force operates in the field and complex environments, the rapid wiring and repeated take-up and pay-off of an optical cable can be temporarily implemented, an armored tactical optical cable with the characteristics of strong tension stress, strong compressive resistance, high flexibility, bending resistance, oil resistance, wear resistance, flame retardance, wide temperature application range and the like needs to be developed. The optical cable is formed in a mode that a plurality of optical fibers coated with tightly sleeving layers are twisted into the cable in a double helix mode and Aramid yarns, a metal hose and a metal woven mesh are sequentially coated outside a cable conductor. The armored optical cable can overcome the defect that the optical fibers are easy to break and are easy to damage and has the characteristics of tensile strength, compressive resistance, explosion protection, rat mammal insect damage prevention and the like. The Aramid yarns which are armored on the optical cable provide a larger short-time bearing tensile force for the optical cable. TPU (thermoplastic polyurethanes) sheaths have excellent flame retardant property, chemical property and high-strength wear resistance. The armored tactical optical cable can be suitable for various outdoor harsh environments. The tension resistance of the optical cable is implemented by the Aramid yarns, the metal hose and the metal woven mesh together.

A probe tip adapter for a measurement probe has at least a first electrically conductive element with a bore at one end and a probing contact formed on the other end. The bore of the electrically conductive element has an electrically conductive elastomer disposed therein having sufficient tensile strength, compression set, hardness, deflection force, elongation and percent recovery for repeatably securing the electrically conductive element to the probing tip of the measurement probe. The probing contact may be configured as a probing tip having a shaft that tapers at one end to a point and as a square pin adapter with a bore formed in the electrically conductive element that receives a spring contact. The probe tip adapter is useable with both single ended and differential measurement probes.

To provide an adhesive film that can be easily released leaving substantially no adhesive residue and without damaging the adherend surface when released from an adherend. A base material comprising at least a first resin film with a breaking elongation in the lengthwise direction of 300 to 1500% and a breaking strength of at least 2 kg/12 mm, and a second resin film with a lower breaking elongation and a higher flexural modulus than the first resin film is used. The second resin film can break before the first resin film when the base material is stretched.

The invention discloses a lifting appliance for a crucible for growing a sapphire single crystal. The lifting appliance comprises a lifting steel wire rope 1, a lifting steel wire rope 2, an upper steel wire rope ring, a lower steel wire rope ring, a bottom support steel wire rope 1, a bottom support steel wire rope 2 and rope threading rings, wherein four rope threading rings are arranged on each of the upper steel wire rope ring and the lower steel wire rope ring; each of the lifting steel wire rope 1 and the lifting steel wire rope 2 passes through two adjacent rope threading rings on the upper steel wire rope ring and two adjacent rope threading rings on the lower steel wire rope ring in turn; and the bottom support steel wire rope 1 and the bottom support steel wire rope 2 are respectively sleeved on the lifting steel wire rope 1 and the lifting steel wire rope 2 through steel rings at the two ends and are positioned below the lower steel wire rope ring. The lifting appliance formed by combining flexible steel wire ropes is convenient to sleeve and detach and lifts and moves the crucible safely and reliably; extruding force applied to the crucible is small when the crucible is lifted, so that the crucible cannot be damaged due to pressing, and the service life of the crucible can be prolonged; and more importantly, the crucible can be lifted before a furnace is cooled, unproductive time can be greatly shortened, work efficiency is improved, and production cost is reduced.

A heat-treated steel sheet member having a composition including, by mass %: C: 0.05 to 0.50%; Si: 0.50 to 5.0%; Mn: 1.5 to 4.0%; P: 0.05% or less; S: 0.05% or less; N: 0.01% or less; Ti: 0.01 to 0.10%; B: 0.0005 to 0.010%; Cr: 0 to 1.0%; Ni: 0 to 2.0%; Cu; 0 to 1.0%; Mo: 0 to 1.0%; V: 0 to 1.0%; Ca: 0 to 0.01%; Al: 0 to 1.0%; Nb: 0 to 1.0%; REM: 0 to 0.1%; and the balance: Fe and impurities. The steel sheet member has a microstructure comprising mainly martensite and retained austenite of which a volume ratio is 0.2 to 1.0%, a number density of retained carbide in the steel sheet member having circle-equivalent diameters of 0.1 mm or larger is 4.0×10³/mm² or lower, a tensile strength is 1.4 GPa or higher, and a yield ratio is 0.65 or higher.

The invention relates to a microfiber collagen hemostatic material and a preparation method thereof. The preparation method of the material includes the first step of sodium sulfide unhairing, the second step of shredding and fibrosis, the third step of swelling control, the fourth step of drying, the fifth step of depolymerisation and fluffing, and the sixth step of Co60 radiation sterilization, wherein in the fifth step, the obtained fasciculus is treated using a hammer mill to obtain a microfiber collagen product. According to the method, the use concentration of sodium sulphide is reduced, the efficiency of unhairing is improved, and degreasing and impure protein removal are effectively conducted; collagen materials are not oxidized and degenerated, the activity of microfiber collagen is easy to maintain, and the hemostatic effect is improved. Acid is introduced in the treating process, the degreasing and protein removal are more effective, and the adhesion property of the hemostatic material is guaranteed.

The present invention relates to extruding and drawing formation process for GRP bar surface, and features that the extruding and drawing former is provided with glue dipping tank with compounded adhesive filled and bar surface mold. Certain amount of no-alkali and no-twist roving is soaked into the adhesive inside the glue dipping tank, then threaded into mold preheated to certain temperature and finally extruded in extruding and drawing former to form. The formed product is stoved in electric stove and cooled naturally. High strength adhesive is compounded to ensure enough tensile strength and round strength of the bar surface, and the bar surface has no residual deformation under tensile force up to 700 kg. The bar surfaces of parallel bars and uneven bars may be used in the temperature range of -70 deg.c to +50 deg.c and maintain excellent mechanical performance.

The invention discloses a device and system for positioning a locomotive testing bed ground draw gear. The device comprises a foundation base platform, a device base, a transmission system and a movable draw gear assembly. The device base is installed on the foundation base platform and comprises an device base track, the movable draw gear assembly comprises the draw gear, a tension sensor, a draw gear bracket and draw gear bracket rolling wheels, the rear end of the draw gear is connected with the tension sensor which is installed in the draw gear bracket, the draw gear bracket rolling wheels are installed on the draw gear bracket and installed on the device base track in a rolling mode, and the transmission system drives the movable draw gear assembly to move. According to the device for positioning the locomotive testing bed ground draw gear, the transmission system is adopted for driving the movable draw gear assembly to move on the device base track of the device base, the travel distance of the device is large, and requirements for accurate positioning for different vehicle types are met.

The invention relates to a milky white PE (polyethylene) label film. The milky white PE label film comprises an outer film layer, an intermediate film layer and an inner film layer, wherein the outerfilm layer and the inner film layer respectively comprise 68.5-70.5 wt% of LDPE (low-density polyethylene), 29-31 wt% of casting grade HDPE (high-density polyethylene) and 0.2-0.8 wt% of PPA (phenyl-propanolamine), and the intermediate film layer comprises 44-46 wt% of blown film grade HDPE, 35.5-37.5 wt% of LDPE, 17-19 wt% of white masterbatch and 0.2-0.8 wt% of PPA. In addition, the invention also provides a production method of the milky white PE label film. The milky white PE label film has the characteristics of low crystal point, no surface precipitation, high stiffness and yellowing resistance, and meets requirements for printing and use.

The invention relates to a prefabricated pile foundation pier and a construction method thereof, comprising a prefabricated pile, a prefabricated bearing cap and a prefabricated pier column, wherein the pile foundation pier is integrally connected by a first connection structure for connecting the prefabricated pile and the prefabricated bearing cap and a second connection structure for connectingthe prefabricated pier column and the prefabricated bearing cap; the first connection structure connects the precast pile and the bearing cap into a whole, which ensures the reliability of the connection between the pile and the bearing cap, and at the same time satisfies the sufficient compression, bending and shearing capacity and certain tensile capacity at the pile top. The second connectionstructure connects the precast pier column with the cap, and ensures that the bottom of the pier has sufficient compression, bending, shear and ductility seismic capacity. Compared with the prior art,the invention is conducive to realizing the whole bridge segment assembly construction of the concrete bridge, improving the construction quality, greatly accelerating the construction process, shortening the construction period, reducing the adverse impact on the environment, reducing the construction noise and the like.

A high silicon molybdenum nodular cast iron material is characterized in that the high silicon molybdenum nodular cast iron material is prepared from 3.3%-3.5% of carbon, 3.4%-3.6% of silicon, 0.5% or less of manganese, 0.05% or less of phosphorus, 0.006%-0.012% of sulphur, 0.04%-0.06% of magnesium, 0.4%-0.6% of molybdenum and the balance iron; for the high silicon molybdenum nodular cast iron material, the tensile strength is larger than or equal to 460 Mpa, the yield strength is larger than or equal to 350 Mpa, and the ductility is larger than or equal to 10%. The invention further provides a preparation method of the high silicon molybdenum nodular cast iron material.

A hose coupler for a seabed flexible hose comprises a coupler flange, a coupler front end, a coupler sleeve, polyurethane rubber, a high-strength screw, a rubber sealing member, a metal compression ring, a Y-shaped sealing ring, a coupler core, a sealing flange and a coupler tail end. Tensile layer flat steel is respectively and fixedly connected with the hose coupler and the sealing flange at the front end of the coupler through the high-strength screw, then the coupler is integrated with the flexible hose in curing mode through the hose, and the connection of the hose coupler and the flexible hose has enough tensile strength. Annular grooves are designed at the front end and the tail end of the coupler, the Y-shaped sealing ring, the metal pressure ring and the rubber sealing member are placed in the annular grooves, and the sealing flange extrudes the rubber sealing member, the metal pressure ring and the Y-shaped sealing ring by screwing the high-strength screw to generate sealing effect.

The tool holder (1) has a spacer (13) made from light metal or plastic, which is arranged between steel or plastic made cover plates (8,9) each with a thickness of about 0.1-0.8 mm. The knitting tools (2) are arranged parallel to each other with a predetermined distance. The front and rear narrow sides (4,5) of the knitting tools are bonded to the respective cover plates (8,9) through adhesive (12).