77results about How to "Prevent shape change" patented technology

A series of medical instruments can be made with the use of shape memory tube with a transformation temperature that is above or below the ambient temperature. In the first case, the material behaves with the shape memory effect and in the second case the behavior is superelastic. The wall of the tube has been provided with a plurality of slots in specific places, often near or at the distal end of the instrument, and in specific arrangements which allow local variations in diameter, shape, and/or length. These variations can either be caused by the memory effect during temperature change or by superelastic behavior during change of the mechanical influences on the memory metal by the surrounding material.

To provide a wire grid polarizer used in an image display apparatus, in which even when the image display apparatus is of a small compact structure and provides high output of power from the light source, shape transformation of the glass substrate occurring due to generation of heat caused by light absorption in the wire grid is prevented and in which by efficient usage of light rays from the light source, high-quality images can be displayed by the image display device and power consumption is low. A wire grid 2 formed of metal in a fine comb shape is formed on a glass substrate 1 and antireflection coatings 3a and 3b are disposed respectively on the front surface part and the rear surface part of the wire grid 2 of the glass substrate 1.

The invention discloses a preparation method of a honeysuckle flower tea, and belongs to the technical field of tea processing. The preparation method comprises the following steps: picking fresh honeysuckle flowers; soaking the picked fresh honeysuckle flowers by clear water for 40-60 minutes, wherein the temperature of the clear water is 20-30 DEG C; filtering the soaked honeysuckle flowers until no water is dripping; carrying out withering, namely withering the filtered honeysuckle flowers by hot air of which the temperature is raised in gradients, wherein the honeysuckle flowers are orderly heated by a first gradient temperature of 35-45 DEG C for 40-50 minutes, a second gradient temperature of 75-85 DEG C for 20-30 minutes, and a third gradient temperature of 70-90 DEG C for 10-15 minutes; carrying out rolling; continuously stir-frying the rolled honeysuckle flowers in a hot pan at 120-150 DEG C for 6-8 minutes, dishing the stir-fried honeysuckle flowers off, and air-cooling the honeysuckle flowers until the temperature of the honeysuckle flowers is 10-20 DEG C; and fermenting and drying the cooled honey suckles. The preparation method of the honeysuckle flower tea overcomes factors of concern of prior art, and sets rational technological conditions, so that the prepared honeysuckle flower final-products are reduced in bitter and astringent tastes after being brewed in water when compared with the honeysuckle flowers processed by existing technologies under the same conditions.

The invention discloses a plastic pipe shape correcting device for a plastic pipe production line. The plastic pipe shape correcting device is composed of a pair of upper positioning rollers (1), a pair of lower positioning rollers (2), a rotating disc (3), a pair of upper limiting blocks (1-1), a pair of lower limiting blocks (2-1), a pair of supports (4), a pair of fixed plates (5), an upper connection rod (5-1), a lower connection rod (5-2), a pair of clamping blocks (6), a pair of correcting rollers (7), a pair of screw rods (8) and a pair of hand wheels (9). The plastic pipe shape correcting device has the advantages that the shape of transferred plastic pipes is corrected through the device and prevented from being changed, and the final product quality is ensured.

The invention provides a cross section evaluating apparatus capable of analyzing the cross sectional structure in a state where the temperature of the specimen is regulated. There is disclosed an information acquisition apparatus comprising a stage for placing the specimen, temperature regulation means for regulating the temperature of the specimen, exposure means for exposing a surface, of which information is desired, of the specimen, and information acquisition means for acquiring information relating to the surface exposed by the exposure means.

It is an object of the present invention to provide a method of manufacturing a cylindrical part with a thin-walled portion at a lower cost, and according to the manufacturing method of the present invention, a base metal formed with thin-walled portion adjacent to its closed end can be easily detached from working jigs. According to the method, a thin-walled portion is at first formed by the ironing process on a cylindrical wall adjacent to the closed end, so that an outer-side step portion is formed on an outer peripheral surface of the cylindrical wall. Then the closed end is punched out and the thin-walled portion is enlarged in a radial and outward direction to form an inner-side step portion on an inner peripheral surface of the cylindrical part.

The invention relates to an ash-free smoke sampling device. The device which comprises a U-shaped sampling gun, an electric heating element, a temperature controller, a porous ceramic tube lining and a jet mechanism is characterized in that: the intermediate section of the U-shaped sampling gun is provided with the porous ceramic lining, the porous ceramic lining is provided with three sampling holes, the jet mechanism is arranged in the tail section of the U-shaped sampling gun, and the outside of the U-shaped sampling gun is provided with the built-in electric heating element and the temperature controller. The device, which is suitable for the measurement of the low ash or ash-free smoke and allows the measurement of a high ash smoke to be realized, has a very wide application temperature range, so the instantaneous sampling of a smoke from coal firing can be realized, and components of the smoke and the form thereof in various atmospheres can be accurately measured. The device of the invention, which has a simple system, provides an effective method for the research of the purification treatment of the smokes in coal-fired boilers.

The invention provides an early strength type polycarboxylic acid water reducing agent for C80 pipe pile concrete, wherein 1000 parts of the polycarboxylic acid water reducing agent are prepared fromthe following components by weight: 331-344 parts of a polyether macromonomer with a molecular weight of 3500-3800, 27-34 parts of acrylic acid, 4-10 parts of an amide-based small monomer, 4-10 partsof a rigid small monomer, 2-6 parts of 27.5% industrial-grade hydrogen peroxide, 2-5 parts of unsaturated sulfonate, 0.4-1.5 parts of a reducing agent, 1.8-2.4 parts of a chain transfer agent, 6-12 parts of a neutralizing agent, and the balance of water, wherein the prepared finished product has a mass fraction of 40%, and an acid-to-ether ratio is controlled at 4.3-4.8. According to the present invention, the water reducing agent molecule having the long main chain and the long branched chain is obtained by matching the amine ether macromonomer and the polyether macromonomer according to a mass ratio of 7:2, and the rigidity of the main chain can be strengthened by introducing the rigid small monomer, such that the main chain shape change caused by the too large steric hindrance of the side chain can be avoided, and the good anchoring effect of the water reducing agent molecule on the surface of the cement particles can be ensured.

The invention provides a plate structure with heat diffusivity and high electrical conductivity comprising the linear structure of the carbon element and manufacturing method thereof and an electric device using the plate structure. The plate structure has multiple beam linear structure (12), including each other to maintain their space the way the first configuration includes a number of linear carbon structure, and a number of thread-like structures described in beam (12) to each other than the first gap to maintain the second largest allocation of space the way; filler layer (14), filled between the first and the second gap for the structure to maintain a number of linear beams (12).

The invention provides long products with stiffness controlled by the cross sectional shape, method of their thermo-chemical treatment, and apparatus for forming the final shape of the long products and thermo-chemical treatment.

The invention provides a vegetable protein vegetarian sausage and a preparation method thereof, and relates to the technical field of food processing. The vegetable protein vegetarian sausage comprises a casing and stuffing. The stuffing comprises main raw materials composed of vegetable protein. The stuffing further comprises a gel accelerator, and the gel accelerator is a ferulic acid derivative. The preparation method comprises the following steps of emulsifying the vegetable protein to obtain an emulsion; mixing and stirring the emulsion, an auxiliary material and the gel accelerator to prepare the stuffing; filling the casing with the stuffing to form a semi-finished product; and curing and cooling the semi-finished product to obtain the vegetable protein vegetarian sausage. The vegetarian sausage provided by the invention has the characteristics of high protein, low cholesterol and low fat, provides sufficient amino acids, remarkably reduces the calories of the sausage, has no obvious difference from meat sausages in sense, and has high gel strength and stability; and after being eaten, the vegetable protein vegetarian sausage can show the effect of inhibiting the activity ofalpha-glucosidase, is helpful to reduce the fluctuation of postprandial blood sugar, and has the effect of inhibiting postprandial hyperglycemia.

The invention discloses a fabric press for garment processing. The fabric press comprises a main machine body; pipe troughs are formed on both front and rear lateral surfaces of the main machine body,and a water tank is clamped and fixed on the main machine body; a motor slot is pre-formed on the front lateral surface of the main machine body, and a servo motor is fixedly mounted in the motor slot; a motor shaft of the servo motor is connected with one end of a first belt gear by a first ratchet mechanism; and the motor shaft of the servo motor is connected with one end of a second belt gearby a second ratchet mechanism. The fabric press for garment processing can be convenient to fulfill the aim of pressing a fabric by a structure similar with a scissor jack, avoids a problem that a conventional press requires a high power to operate, and is beneficial for saving electric energy; moreover, when the fabric is conveyed, the press can absorb heat energy absorbed on the fabric due to pressing so as to avoid a change of the shape of the fabric in the fabric winding process; and meanwhile, the fabric press for garment processing can be convenient to regulate a pressure for pressing, so that the press can be applicable to fabrics made of different materials.