76results about How to "Permanent deformation" patented technology

A pivotal harness guide 3 is provided in a side of a car body 1 or a sliding door, and a corrugated tube 4 is secured to the harness guide. The corrugated tube 4 may be held turnably in a circumferential direction of the corrugated tube 4 by the harness guide. The harness guide 3 has a locking projection that engages with a groove formed in the corrugated tube 4. The harness guide 3 has a harness support member 5 for securing the corrugated tube 4 to the harness guide and a base member 9 for turnably connecting the harness support member to the base member by a connecting member, and the base member is secured to the car body or the sliding door. The corrugated tube 4 may be turnable together with harness supporting cradles within a cylindrical wall formed in a panel of the car body.

A mat having a core that provides strength and rigidity to the mat, and including a structure of a sheet, elongated members, a frame, compartments, or combinations thereof and at least one outer layer associated with the core and made of a sheet, elongated members or combinations thereof. The core and outer layer(s) are integral or are joined together, and the structure of the core is made of one or more environmentally resistant materials to provide an extended service life when encountering rain, snow or other weather conditions that would eventually degrade wood. The mat has a load bearing capacity that is able to withstand a load of at least 500 to 800 psi or even 1000 psi without permanently deforming the core. Bumpers are preferably provided upon sides of the mat to protect them from damage due to transport or installation of the mat.

The invention relates to the field of silicone rubber materials and particularly relates to a preparation method of high-performance mould-press type mixed silicone rubber. The preparation method comprises the following steps: matching raw materials, kneading the raw materials, curing the rubber material, introducing steam, and performing vacuumizing treatment. The tensile strength, the tear strength, the elongation and other parameters of a rubber product produced by the silicone rubber after treatment by vulcanization are obviously improved, the thermal aging permanent deformation parameter is also in a relatively small range, and the comprehensive mechanical properties are further improved.

There is provided a seat cover for accommodating a child safety chair upon a seat. The seat cover comprises a lower protective member which is disposable upon a seating portion of the seat. This lower member can accommodate the child safety chair when positioned in a rearward-facing direction to prevent it from permanently compressing the seating portion. The seat cover further comprises an upper protective member that is disposable against a seat-back portion of the seat. This upper member is selectively attachable with and detachable from the lower member. By doing so, the upper member can further prevent the chair from permanently compressing the seat-back portion when it is repositioned in a forward-facing direction and placed in contact therewith.

The invention discloses a diesel oil-resisting low pressure change nitrile rubber material and a preparation method thereof and belongs to the technical field of rubber. The rubber material is prepared from the following components: 100 parts of raw nitrile rubber, 5 parts of zinc oxide, 1 part of stearic acid, 70 to 105 parts of carbon black, 0 to 10 parts of a softened plasticizer TP-95, 2 partsof an antiager RD, 1 part of an antiager ZMMBI, 1 to 2 parts of a flow dispersant WB222, 9 to 12 parts of a vulcanizing agent Perkadox 14-40B-GR and 4.5 to 6 parts of a crosslinking agent Ricon153D.According to the preparation method disclosed by the invention, by reasonably matching the components of the raw nitrile rubber, nitrile rubber with high-content acrylonitrile is combined with the rawnitrile rubber filled with liquid nitrile and containing middle-content acrylonitrile; and the prepared nitrile rubber material has the characteristics of excellent diesel oil resistance, low compaction set and low temperature resistance.

A surgical device including first and second joint parts that are connected in series is provided. The surgical device includes a plurality of link arms that pass through an inner portion of the first joint part so as to drive the second joint part. The link arms are serially connected so as to rotate with respect to each other, and are rotatably connected to a driving unit for driving the plurality of link arms.

The invention discloses a shaft end O-shaped permanent compression set resisting rubber sealing ring. Raw materials of the shaft end O-shaped permanent compression set resisting rubber sealing ring comprise, by weight, 30-60 parts of tetrapropyl fluoro rubber, 10-20 parts of nitrile butadiene rubber, 10-20 parts of polyether polyurethane rubber, 15-25 parts of styrene butadiene rubber, 1.2-2.5 parts of dicumyl peroxide, 2.5-4 parts of trimethylolpropane triacrylate, 0.8-1.7 parts of N,N'-p-phenylbimaleimide, 50-75 parts of modified nanometer montmorillonite, 20-45 parts of white carbon black, 20-40 parts of polytetrafluoroethylene, 5-12 parts of nanometer silica, 5-12 parts of nanometer kaolin, 5-12 parts of graphite powder, 5-12 parts of glass fibers, 0.8-1.6 parts of di(dioctylpyrophosphato)ethylene titanate, 0.9-1.8 parts of triphenyl phosphate, 0.9-1.8 parts of dibutyl phthalate, 0.9-1.8 parts of microcrystalline paraffin and 0.5-1.5 parts of an antioxidant.

The invention discloses rubber composition, a processing method thereof, an application of the composition to foam product production and a method. The rubber composition is prepared from a rubber matrix and essential components, wherein the rubber matrix contains a parts of branched polyethylene and b parts of EPM rubber and EPDM rubber, a is larger than 0 and smaller than or equal to 100 parts,and b is larger than or equal to 0 and smaller than 100 parts; the essential components comprise 0.5-10 parts of a crosslinking agent and 1.5-25 parts of a foaming agent. The rubber composition applies to processing of sponge sealing strips, foam materials with high foaming ratio, damping foam rubber boards, light-color high-strength foam boards, foam solid compound sealing strips as well as solidtires filled with foam elastomers. The rubber composition has the beneficial effects as follows: branched polyethylene not only contains short branch chains of methyl, ethyl, propyl, butyl, amyl andthe like, but also contains long branch chains with carbon number larger than 6, by replacing ethylene propylene rubber in the foam rubber composition partially or completely with branched polyethylene, melt strength of the rubber composition can be improved, foamability, especially pre-foamability of the composition is improved, and the obtained rubber products have lower compression set.

A rubber laminate comprised of a cross-linked rubber layer containing a carboxyl-group containing nitrile copolymer rubber (A), a carboxyl-group containing acryl-based polymer (B), and a specific phosphonium salt and a fluorine-based polymer layer. Preferably, the carboxyl-group content per 100 grams of the (A) ingredient is 210 -3 to 110 -1 equivalents and the carboxyl-group content per 100 grams of the (B) ingredient is 410 -4 to 110 -1 equivalents, the (A) ingredient and (B) ingredient are in a weight ratio of 40:60 to 90:10, and the phosphonium salt content in the cross-linked rubber layer is 0.5 to 10 parts by weight per 100 parts by weight of the total of the (A) ingredient and (B) ingredient. According to the present invention, there is provided a rubber laminate excellent in oil resistance and gasoline permeation resistance plus tensile strength, low compression set, and other mechanical characteristics, ozone resistance, and interlayer adhesion.

A smoothed and durable industrial process fabric and method for producing such a fabric. The fabric may be used as a papermaker's fabric, other industrial process fabric and / or engineered fabric. In any case, the fabric is processed using a device comprising at least two smooth rolls which form a pressure nip, such as a calender, such that at least some of the fabric components are permanently deformed. Preferably, at least one of the rolls is heated to a pre-selected temperature.

To provide a seat with ventilative property, which can eliminate or minimize the possibility of its being permanently deformed and settled into an unrecoverable deformed state. In the seat with ventilative property, left and right three-dimensional network cushion elements are provided in a forwardly-facing region of a seat cushion of the seat, in a manner independent of each other, such that the left and right three-dimensional network cushion elements are respectively situated at: one location on which a left thigh portion of a seat occupant is to be contacted; and the other location on which a right thigh portion of the seat occupant is to be contacted. This arrangement can almost completely prevent a direct application of a weight of the seat occupant to the two three-dimensional network cushion elements. Therefore, the present invention has the effect that a permanent downward settling of the seat cushion SC can be prevented, so that a short life of the seat due to such permanent settling may be substantially avoided.

The invention discloses a washing machine footing. The footing comprises a supporting piece used for supporting on a supporting surface; the supporting piece comprises a rigid polyurethane member andan elastic polyurethane member which are integrally formed, and the elastic polyurethane member is in contact with the support surface. The washing machine footing is integrally formed by the rigid polyurethane member and the elastic polyurethane member. The structure of the washing machine footing is a whole with high strength, so that the washing machine footing cannot be damaged when being dragged; the elastic polyurethane material can generate larger deformation force under the condition of slight transverse expansion, and larger grip force is generated; and the polyurethane material has small permanent deformation. The washing machine footing makes full use of the polyurethane technology, the overall system safety of a washing machine and durability of the washing machine footing areimproved, better shock absorption and noise reduction effects are brought, and better use experience is provided for users.