137results about How to "Improve temperature resistance" patented technology

Superhard strong toughness and high-entropy alloy nitride nano-composite coating carbide blade and preparation method thereof

The invention discloses a superhard strong toughness and high-entropy alloy nitride nano-composite coating cemented carbide blade. A superhard nano-composite coating is deposited on a cemented carbidesurface, wherein the superhard nano-composite coating is composed of a bonding layer, a transition layer, a support layer, a stiffening layer, a wear-resistant layer and a temperature-resistant layer; the bonding layer is a pure Cr layer, and the transition layer is a CrN layer; the support layer is a nano-multilayer film formed through alternate growth of the transition layer and the stiffeninglayer, and the stiffening layer is a TiVZrNbHfN high-entropy alloy nitride layer; and the wear-resistant layer is a nano-multilayer film formed through alternate growth of the stiffening layer and thetemperature-resistant layer material, and the temperature-resistant layer is an AlCrNbSiTi high-entropy alloy nitride layer. According to the nano-composite coating cemented carbide blade, by adopting deign of various high-entropy alloy coating materials and composition gradient, the internal stress of the coating can be reduced greatly, and the toughness of the coating is improved; the disadvantage of low temperature resistance of an existing blade coating is overcome effectively; and the service life of the cemented carbide blade is prolonged greatly, and the adaptability of the cemented carbide blade is improved.

Flexible display and manufacturing method thereof

The invention discloses a flexible display and a manufacturing method thereof. The manufacturing method comprises the steps of A, carrying out surface treatment on a middle area of a carrier substrate so as to enable the middle area of the carrier substrate to have a hydrophobic property; B, evenly coating a polymer solution at the surface of the carrier substrate, then heating to enable the polymer solution to be cured through cross-linking, and forming a polymer film; C, carrying out surface treatment on the periphery of the polymer film so as to enhance adhesion between the polymer film and the carrier substrate; D, forming a blocking layer, a TFT (thin film transistor) array layer, an OLED (organic light emitting diode) layer and a packaging layer on the polymer film in sequence, and then stripping the flexible display from the carrier substrate along a cutting line. The method disclosed by the invention not only ensures that the flexible display has good adhesion when being manufactured, but also ensures that a display device is stripped easily from the carrier substrate after the flexible display is manufactured. Meanwhile, an adhesive does not need to be used, the preparation process of the device is simplified, and the temperature resistant performance of the flexible substrate is improved, thereby being suitable for manufacturing high-resolution flexible displays.

Laser ignition combustion chamber for titanium fire test

The invention belongs to the technical field of application of titanium alloy and relates to a laser ignition combustion chamber for titanium fire test. The combustion chamber mainly comprises a housing, a front cover, a rear cover, a gas inlet pipe, an exhaust pipe, a sample clamp, a pressing plate, a cooling water pipe, an observation window, a laser incidence window, a gas temperature sensor, agas pressure sensor and the like; moreover, a test sample can be ignited within a short time through a laser ignition mode; the pressure intensity, the temperature and the gas flow speed of a cavityare adjusted simultaneously by the gas inlet pipe which seals the combustion chamber and is close to the test sample; the observation window is positioned over the sample, so that the combustion condition can be observed conveniently; a cooling structure is arranged in the wall of the housing, so that the titanium fire test with the temperature of 600 DEG C or more can be realized; and the sampleclamp is tightly pressed and fixed by the pressing plate, so the mounting is facilitated. The combustion chamber provided by the invention is compact in structure and low in use cost, can bear the gasflow conditions of high temperature, high pressure and high speed, can meet the requirement of simulating the titanium fire test under the interaction of the aero-engine service environment, and hasa wide application prospect.

Heat-resistant and salt-resistant high temperature and high pressure filtrate loss reducer for drilling fluid, and preparation method of filtrate loss reducer

The invention discloses a heat-resistant and salt-resistant high temperature and high pressure filtrate loss reducer for drilling fluid, and a preparation method of the filtrate loss reducer. The filtrate loss reducer is prepared from the following components: a polymer monomer and nano silicon, wherein the polymer monomer is prepared from acrylic acid, 2-acrylamide-2-methyl propanesulfonic acid,acrylamide and vinylpyrrolidone; the filtrate loss reducer is prepared from the following components in parts by weight: 1-5 parts of acrylic acid, 1-4 parts of 2-acrylamido-2-methyl propanesulfonic acid, 6-12 parts of acrylamide, 1-3 parts of vinylpyrrolidone and 0.5-1 part of the nano silicon. Compared with the prior art, the filtrate loss reducer provided by the invention has excellent heat resistance, salt resistance as well as high temperature and high pressure reduction performance; the filtrate loss reducer has a better filtrate loss reduction effect in the drilling fluid; an acting effect between functional groups on a side chain and clay particles is obvious, so that a formed mud cake is good in quality; the filtrate loss reducer has a good filtrate loss reduction effect both in the drilling fluid of fresh water and saline water.

Temperature-resistant probiotic chocolate product and preparation method thereof

The invention provides a method for preparing a temperature-resistant probiotic chocolate product. The method comprises a step of adding probiotics before regulating the temperature of chocolate syrup. The method specifically comprises the following steps: 1) preparing a preliminary mixed solution of the chocolate syrup, accurately grinding the solution, and maintaining the temperature; 2) addingthe temperature-maintained chocolate syrup and temperature-returned probiotic powder in a fine grinder, performing fine grinding, and controlling the fine grinding temperature to be about 28-32 DEG C;3) regulating the temperature of the mixture in the step 2), and controlling the temperature to 27-30 DEG C for 10-15 minutes; 4) preparing a chocolate core from the temperature-regulated mixture inthe step 3); and 5) optionally coating the chocolate core in the step 4), thereby obtaining the product. The temperature-resistant probiotic chocolate chip provided by the invention is intact in texture at a high temperature (37 DEG C), small in probiotic decay, high in temperature resistance and convenient to preserve and eat, so that the consumers can supplement probiotics with health effects while tasting the perfect chocolate snacks, and the market prospects are wide.
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