53results about How to "Good mechanical protection" patented technology

According to one embodiment of the disclosure, an environmental protection coating comprises a circuit assembly having a first protective dielectric layer and a second dielectric layer. The circuit assembly has an outer surface on which a plurality of discrete electrical components are attached. The first protective dielectric layer overlays the circuit assembly. The second dielectric layer overlays the first protective dielectric layer and is made of a dielectric material having modulus of elasticity less than 3.5 Giga-Pascal (GPa), dielectric constant less than 2.7, dielectric loss less than 0.008, breakdown voltage strength in excess of 2 million volts/centimeter (MV/cm), temperature stability to 3000 Celsius, defect densities less than 0.5/centimeter, pinhole free in films greater than 50 Angstroms, capable of being deposited conformally over and under 3D structures with thickness uniformity less than or equal to 10%.

A method for manufacturing an optical fiber preform, including: a) providing a lining tube as a substrate tube, and doping and depositing by a PCVD or an MCVD process; b) in the reacting gas of silicon tetrachloride and oxygen, introducing a fluorine-containing gas for fluorine doping, introducing germanium tetrachioride for germanium doping, ionizing the reacting gas in the lining tube through microwaves to form plasma, depositing the plasma on the inner wall of the lining tube in the form of glass; c) after the completion of deposition, processing the deposited lining tube into a solid core rod by melting contraction through an electric heating furnace; d) sleeving the solid core rod into a pure quartz glass jacketing tube and manufacturing the two into an optical fiber preform; and e) allowing the effective diameter d of the optical fiber preform to become between 95 and 205 mm.

The invention discloses a high anti-pressure outdoor optical cable and filler thereof. The optical cable comprises at least one optical fiber which is wrapped by a loose sleeving, and cable cores, filling ropes, a center enhancement member, filing paste, a coated steer stripe, an inner jacket, organdy, an aluminum strip and an outer jacket constituted by sleeving filling; the cable cores and the filling ropes are twisted and surround the center enhancement member and are wrapped by the coated steer stripe; the filling paste fills the gaps among the cable cores, the filling ropes and the center enhancement member; and the coated steel stripe is wrapped successively by the inner jacket, organdy, the aluminum stripe and the outer jacket from inside to outside. The high anti-pressure outdoor optical cable disclosed by the invention has a good bending capability and a strong mechanical protection capability, which can better prevent the external hazard and is strong in resisting pressure. The filling paste used by the high anti-pressure outdoor optical cable is simple in composition, easy for preparation and long in storage time, and will not rot after 5 years of storage. In a 110 DEG aging acceleration test, the high anti-pressure outdoor optical cable has no putrefactive phenomenon after 5 months and thus the service life of the optical cable is improved.

The invention discloses a manufacturing method of a high-flame-retardance low-release environment-friendly shield cable. The method comprises the following steps of material selection, wire drawing, intertwist of conductors or conductors, lapping of a fire-resistant insulation layer, extruded insulation, radiation crosslinking, cabling, metallic shielding, extrusion of an oxygen insulation layer,armouring, lapping, extrusion of an outer sheath, detection of product performance and packaging and warehousing of finished products. The manufactured cable overcomes the defects of high smoke formation and high toxicity of a flame-retardance wire cable of the halogen-containing series, also solves the problem that the flame-retardance wire cable of the halogen-containing series cannot reach therule of the new version of the civil building electrical design specification, and has the capacity of resisting external electromagnetic interference and the capacity of outward radiating electromagnetic interference of a system; the flame retardance of the cable can reach the grade A, the combustion performance of the cable can reach the grade B1, the smoke toxicity of the cable can reach the grade t0, the combustion dripping/particle grade of the cable can reach the grade d0, the corrosion resistance of the cable can also reach the grade a1, and the cable can be widely applied to civil buildings.

The invention discloses a packaging material applied to a light-emitting diode (LED), which is characterized by consisting of a pouring sealant body and a thickening primer coating, wherein the thickening primer coating comprises the following components in part by weight: 100 parts of organic solvent; 1 to 20 parts of silicon resin; 0.1 to 30 parts of silane coupling agent and reactive group-containing siloxane and 10<-5> to 4 parts of titanate or platinum complex. In the invention, a condensate obtained after the pouring sealant body is solidified can provide good mechanical protection for the LED; the thickening primer coating has high bonding strength, can enable the pouring sealant body condensate to be adhered to a bracket of the LED reliably, and makes no space between the pouring sealant body condensate and the bracket of the LED, and the adverse influence on the LED because water vapor, oxygen and the like penetrate into the LED in the using process is prevented, so that the packaging material can protect the LED adequately.

The present invention relates to a vibration tamper, comprising a superstructure having a driving engine mounted on a machine frame and further having a guide bar, and further comprising a substructure having a compactor base driven by the driving engine and having a compactor plate and having a drive line, by means of which a drive connection between the driving engine and the compactor base is established such that the compactor base can move relatively to the superstructure along a compactor axis while executing at least one compacting amplitude. The driving engine of the vibration tamper is a liquid gas powered driving engine, wherein the superstructure and, more particularly, the guide bar on the superstructure, comprises a storage container for liquid gas, and wherein a gas supply line is provided to supply evaporated liquid gas to the driving engine.

The present invention relates to one kind of compound triptolide alcohol preparation for being injected into articular cavity to treat osteoarthritis. It includes triptolide alcohol solution of 1*10<-4> to 5*10<-2> mg/ml concentration and gel liquid mixed in the volume ratio of 1 to 1-9. It has medicine slow releasing effect, and this can prolong the action period of medicine, reduce consumption of triptolide alcohol and lower the toxic side effect of the medicine. It can inhibit the further development of osteoarthritis in early and middle phase, improve the environment inside the joint and promote the regeneration and repair of articular cartilage to reach the aim of cure osteoarthritis.

The invention relates to a method for manufacturing a temperature sensor (10), wherein the method comprises: inserting ceramic powders (22) into a protection tube (23) and inserting a heat responsive element (21) into the protection tube (23) so as to cause the heat responsive element (21) to be fixed in the protection tube (23) through the ceramic powders (22), wherein the method further comprises: compressing the ceramic powders (22) through at least regionally reducing the circumference of the protection tube (23).

The present invention relates to novel cartridges and modules for separation of fluid mixtures, especially for gas separation, to a process for production thereof and to a method of use thereof.

The invention discloses a power cable for a nuclear power plant. The power cable comprises three conductors and insulating layers, outer sides of the three conductors are wrapped by fireproof layers and insulating layers respectively, after the conductors are wrapped by the insulating layers, three cores are intertwisted into bundles, after bundling, an outer side of a cable core is wrapped by a belting layer, a magnesium hydrate filling layer is arranged between the belting layer and the insulating layers, an outer side of the belting layer is wrapped by a lining layer and an armor layer, the armor layer adopts double-steel-belt wrapping, the overlap rate of wrapping is not smaller than 60%, an outer side of the armor layer is wrapped by a high flame-retardant low-smoke halogen-free radiation-proof ozone-proof polyolefin sheath layer, and a cross section of the conductors is 1.5 to 300 mm<2>. The power cable for the nuclear power plant satisfies performance indexes of low smoke, no halogen, flame retardancy and the like which are required by a cable for the nuclear power plant, and also solves the problems of radiation protection and corrosion protection.

A portable gas analysis device having a separating column and a detector. The separating column is composed as a multi-capillary unit from parallel individual capillaries and, depending on the length, is bent into a compact shape, preferably even wound into multiple turns. A thermally conductive casing and a thermal stabilizing device are provided for the multi-capillary unit. The thermal stabilizing device comprises a temperature sensor, a heating element and control electronics. The casing protects the sensitive multi-capillary unit from mechanical actions; it acts as a protective space. The temperature-controlled casing also forms a space in which uniform and controlled conditions prevail and which in particular is isolated from the temperature and humidity of the environment, allowing reliable measurements outside a laboratory environment, in the field. This double effect of the casing for the capillaries in conjunction with the compact dimensions forms the true essence of the invention.

The present invention discloses a double-sided aluminum plating composite material, which comprises a middle layer, an upper layer aluminum plating film plated on the upper surface of the middle layer in a vacuum evaporation plating manner, and a lower layer aluminum plating film plated on the lower surface of the middle layer in a vacuum evaporation plating manner, wherein the middle layer is formed by compounding expandable polyethylene and a non-woven fabric according to a mass ratio of 35-40:60-65. With the technical scheme of the present invention, the barrier property, the stability and the mechanical protection property of the material can be improved, and the damage can be avoided.

A portable communication device with an external housing (1) containsat least a mechanical switch (2a; 2b) and at least one key (3) for actuation of said mechanical switch (2a; 2b), said key comprising an actuation surface (30) which protrudes from said external housing through an aperture (10), and the mechanical switch being able to be actuated by swiveling of the key (3) around an axis (XX′) substantially perpendicular to said actuation surface. According to the invention said key is made of plastic material and comprises, in its thickness and behind said actuation surface, at least one emerging slit (31a; 31b) extending substantially parallel to said actuation surface.

A cable strand for the activation of electrically actuatable injection valves of internal combustion engines having a common-rail injection system, wherein the cable strand connects an engine control device with the injection valves. Electrical cables of the cable strand are molded and/or foamed in a carrier that largely prescribes the shape of the cable strand. At least one filter is also molded and/or foamed in the cable strand and is adapted to affect the electromagnetic compatibility of the cable strand arrangement.

Thermal pattern sensor comprising several pixels arranged on a substrate, each pixel including at least: a pyroelectric capacitance formed by at least one portion of pyroelectric material arranged between at least one lower electrode and at least one upper electrode, with the lower electrode arranged between the substrate and the portion of pyroelectric material, a dielectric layer such that the upper electrode is arranged between the portion of pyroelectric material and the dielectric layer, a heating element including at least one deposition of electrically conductive particles and such that the dielectric layer is arranged between the upper electrode and the heating element, a protective layer arranged between the dielectric layer and the heating element and including at least one material of which the Shore A hardness is greater than or equal to around 60.