34results about How to "Reduced necking" patented technology

An adjustable head and shoulder support apparatus for use with a mobile phone includes a mobile device case having opposing top and bottom ends and configured to hold the mobile phone, the case including a rear face. The apparatus includes a support arm having a first end pivotally coupled to the rear face proximate the top end and a second end opposed from the first end. The support arm is pivotally movable between a stowed configuration adjacent the rear face and an extended configuration displaced from the rear face. The rear face of the case defines a recess that includes an upper portion having a generally circular configuration and a lower portion in communication with the upper portion. The support arm is nested in the lower portion of the recess at the stowed configuration and is displaced from the lower portion of the recess at the extended configuration.

Abstract of the Disclosure A rivet having improved formability is provided. The rivet has a shank having a head at one end. The shank and the head have a refined grain structure. The rivet is manufactured from the region of the workpiece having a refined grain structure by first forming a region having a refined grain structure in a workpiece and then forming the rivet. The refined grain structure results in improved mechanical properties, such as formability, strength, toughness, ductility, corrosion resistance, and fatigue resistance. The improved formability of the rivet reduces the formation and propagation of cracks during the manufacture and installation of the rivets.

The invention discloses a CoCrFeNiMox high-entropy alloy with a non-equal atomic ratio and a preparation method of the CoCrFeNiMox high-entropy alloy, and relates to the CoCrFeNiMox high-entropy alloy with the non-equal atomic ratio and the preparation method of the CoCrFeNiMox high-entropy alloy. The invention aims to solve the problem that the plasticity of the existing high-entropy alloy is poor, as a result, plastic processing is restricted. The alloy expression is CoCrFeNiMox, x is 0, 2 or 4, and the alloy is prepared from the following raw material components in atomic percent: 0%-20% of Mo, 10%-40% of Co, 10%-40% of Cr, 10%-25% of Fe and 10%-25% of Ni, and the sum of the atomic percent of the components is 100%. CoCrFeNiMox high-entropy alloy is applied to the field of high-entropy alloys.

The invention provides a packaging container which comprises an outmost thermoplastic material layer, a core layer, an intermediate thermoplastic material layer, a blocking layer and an innermost thermoplastic material layer from outside to inside. The innermost thermoplastic material layer contains metalloscene catalyst polymerized linear low density polyethylene (MLLDPE) and low density polyethylene (LDPE), the MLLDPE has following parameters: average density of 0.88g/cm3-0.925g/cm3, melt flow index (190 DEG C, 2.16kg) of 5g/10min-20g/10min, peak melting point of 85 DEG C-130 DEG C, and expansion ratio of 1.2-1.8, and the LDPE has following parameters: average density of 0.90g/cm3-0.925g/cm3, melt flow index (190 DEG C, 2.16kg) of 5g/10min-20g/10min, peak melting point of 85 DEG C-110 DEG C, and expansion ratio of 1.2-1.8. A longitudinal sealing portion can realize quick thermal sealing during the process of manufacturing the packaging container, sealing intensity is high, and the manufactured packaging container is high in pass percentage and long in shelf life of liquid food.

The invention provides a method for manufacturing laminated packaging material. The method for manufacturing the laminated packaging material comprises the following steps: step 1, pressing crease lines and stamping open holes in a core layer; step 2, extruding laminated thermoplastic material on the outer side surface of the core layer to form an outermost layer; step 3, extruding laminated thermoplastic material on the inner side surface of the core layer to form an intermediate layer and combining a blocking layer with the inner side surface of the core layer through the intermediate layer at the same time; step 4, extruding laminated thermoplastic material on the blocking layer to form an adhesive layer; and step 5, extruding laminated thermoplastic material on the adhesive layer to form the innermost layer. In the step 5, the thermoplastic material of the innermost layer is formed by the blending metallocene catalyst polymerized linear low density polyethylene (MLLDPE) and low density polyethylene (LDPE). According to the invention, during the process of manufacturing a packaging container by the laminated packaging material manufactured by using the method, heat seal can be quickly performed on the longitudinal sealing part, so as to obtain the packaging container with good sealing strength, the manufactured packaging container has a high qualification rate, and the liquid food can be preserved for a long time.

The invention provides a laminated packaging material which comprises an outermost thermoplastic material layer, a core layer, a middle thermoplastic material layer, a blocking layer and an innermost thermoplastic material layer from the outside in. The innermost thermoplastic material layer comprises metallocene catalyst polymerized linear low density polyethylene (MLLDPE) and low density polyethylene (LDPE), wherein MLLDPE has the following parameters that the average density is 0.88g/cm<3>-0.925g/cm<3>; a melt flow index (190 DEG C, 2.16kg) is 5g/10min-20g/10min; a peak fusing point is 85 DEG C-130 DEG C; and an expansion ratio is 1.2-1.8. LDPE has the following parameters that the average density is 0.90g/cm<3>-0.925g/cm<3>; the melt flow index (190 DEG C, 2.16kg) is 5g/10min-20g/10min; the peak fusing point is 85 DEG C-110 DEG C; and the expansion ratio is 1.2-1.8. Heat sealing can be conducted on a longitudinal sealing part quickly when the laminated packaging material is used for manufacturing a packaging container; the packaging container with high sealing strength is obtained; the manufactured packaging container is high in qualified rate; and a quality guarantee period of liquid food is long.

A neck sizing die for shoulder breeching ammunition cartridge cases that uses the shoulder to align the case, not the body. Alignment occurs before resizing. Resizing is done in a two-step process: a bushing is used to shrink the neck diameter and then an expansion button is used to increase it. Bushing and button diameters are highly selectable and easily changed. Cone-and-cup interfaces ensure concentricity of the case shoulder to the bushing or button. The unique alignment technique and two-step sizing method produces a case with a neck having an interior diameter of the user's choice with the interior wall of the neck aligned to the shoulder. This results in a case that will more reliably position the bullet concentric with the bore of the barrel than existing tools and methods.

The invention discloses a novel polylactic acid material for laminating and laminated product thereof. The material is formed by blending the following components in parts by weight: A, 60 to 99 phr of polylactic acid, and B, 1 to 40 phr of ethylene-vinyl acetate copolymer. The material has the advantages that the ethylene-vinyl acetate copolymer is added in the polylactic acid, synergistic effectis produced between the ethylene-vinyl acetate copolymer and the polylactic acid, the melt strength can be reduced, necking phenomenon can be reduced, when the material is applied to laminating process, the wide range can be increased, the problem of coating shrinkage can be improved, and material cost consumption caused by too wide cut edge after laminating can be reduced.

An elbow brace for supporting a wearer's elbow in a desired position when using a portable electronic device to mitigate “tech neck” is made unobtrusive by incorporation into a shoulder bag having a length-adjustable shoulder strap. A flexible bag assembly comprises opposite first and second panels of flexible sheet-like material connected to define an interior compartment having a volume. An upper bag mouth is disposed between edges of the panels, with fastenings connecting its opposite ends of the edges. An elbow-receiving sleeve of flexible sheet-like material is attached in the upper bag mouth and can be opened into a generally frustoconical form, for supporting a bent elbow such that, in use, both forearm and upper arm extend from an outer end elbow-receiving sleeve. In a closed state the elbow-receiving sleeve is flattened such that opposing halves of the elbow-receiving sleeve come together.

The invention provides a laminated packaging material. The laminated packaging material comprises an outermost thermoplastic material layer, a sandwich layer, an intermediate thermoplastic material layer, a barrier layer and an innermost thermoplastic material layer from outside to inside, wherein the outermost thermoplastic material layer is made of metalloscene-catalyst-polymerized linear low-density polyethylene (mLLDPE) and LDPE; for the metalloscene catalyst polymerized mLLDPE, the mean density is 0.88-0.925g/cm<3>, the melt flow index (190 DEG C and 2.16kg) is 5-20g/10min, the peak melting point is 85-130 DEG C and the expansion ratio is 1.2-1.8; and for the LDPE, the mean density is 0.90-0.925g/cm<3>, the melt flow index (190 DEG C and 2.16kg) is 5-20g/10min, the peak melting point is 85-110 DEG C and the expansion ratio is 1.2-1.8. Packaging containers with good sealing strength can be obtained by using the laminated packaging material, the percent of pass of the prepared packaging containers is high, and liquid food in the prepared packaging containers is long in quality guarantee period.

The invention provides a packing container which comprises a thermoplastic material outermost layer, a sandwich layer, a thermoplastic material middle layer, a blocking layer and a thermoplastic material innermost layer from exterior to interior, wherein the thermoplastic material middle layer comprises a linear low density polyethylene (MLLDPE) polymerized by a metalloscene catalyst and a low density polyethylene (LDPE); the linear low density polyethylene (MLLDPE) polymerized by a metalloscene catalyst has the following parameters as follows: the average density is 0.88g/cm<3>-0.925g/cm<3>, the melt flow index (190 DEG C,2.16 kg) is 5g/10 min-20g/10 min, the peak value melting point is 85 DEG C-130 DEG C, and the expansion ratio is 1.2-1.8; and the low density polyethylene (LDPE) has the following parameters as follows: the average density is 0.90g/cm<3>-0.925g/cm<3>, the melt flow index ( 190 DEG C,2.16 kg) is 5g/10 min-20g/10 min, the peak value melting point is 85 DEG C-110 DEG C, and the expansion ratio is 1.2-1.8. A longitudinal sealing part in a preparing process of the packing container provided by the invention can rapidly carry out hot seal, the sealing intensity is good, the qualification rate of the prepared packing container is high, and the quality protecting time of a liquid state food is long.

The invention provides a method for manufacturing laminated packaging material. The method for manufacturing the laminated packaging material comprises the following steps: step 1, pressing crease lines and stamping open holes in a core layer; step 2, extruding laminated thermoplastic material on the outer side surface of the core layer to form an outermost layer; step 3, extruding laminated thermoplastic material on the inner side surface of the core layer to form an intermediate layer and combining a blocking layer with the inner side surface of the core layer through the intermediate layer at the same time; step 4, extruding laminated thermoplastic material on the blocking layer to form an adhesive layer; and step 5, extruding laminated thermoplastic material on the adhesive layer to form the innermost layer. In the step 2, the thermoplastic material of the outermost layer is formed by the blending metallocene catalyst polymerized linear low density polyethylene (MLLDPE) and low density polyethylene (LDPE). According to the invention, during the process of manufacturing a packaging container by the laminated packaging material manufactured by using the method, heat seal can be quickly performed on the longitudinal sealing part, so as to obtain the packaging container with good sealing strength, the manufactured packaging container has a high qualification rate, and the liquid food can be preserved for a long time.