84results about How to "Low roughness requirements" patented technology

The invention discloses a technology for repairing surfacing of a piston rod of a super large marine diesel engine, and the technology can carry out the deep repair of the surface of the piston rod. The adopted surfacing process is as follows: flaw detection and straightening are carried out on the piston rod, turning machining is carried out on the surface of the piston rod to remove a defect layer, and individual deeper cracks are manually removed by grinding; fire whirl is used for heating the piston rod twice, the first heating is carried out till 200 DEG C-250 DEG C, the heating is stopped, the race rotation is carried out for 30 minutes, the second heating is further carried out after the temperature difference between the interior and the exterior is reduced, and a surfacing machine tool is rotated after reaching 250 DEG C-300 DEG C; submerged arc welding is used for rotating dual heads of the surfacing machine tool and a 2Cr13 flux-cored welding wire for carrying out the simultaneous surfacing, and asbestos cloth is used for wrapping and keeping the temperature during the welding process; the piston rod wrapped by the asbestos cloth for slow cooling after the surfacing achieves the size requirement, when the temperature is decreased to be lower than 100 DEG C, the piston rod wrapped by the asbestos cloth is vertically placed till the temperature is decreased to the room temperature, and then the temperature-keeping cloth is removed. The surface of the piston rod after the repair by employing the method has no weld defects, the piston rod fully meets the performance requirements, and the cost is only about one fifth of the cost for fabricating a new piston rod.

A photosensitive resin composition is constituted by a polymer, as a component (A), having a monodisperse molecular weight distribution; and a compound, as a component (B), first generating a functional group which is capable of being silylated by radiation irradiation.

An integrated circuit is made by depositing a pinning layer on a substrate. A block copolymer photoresist is formed on the pinning layer. The block copolymer has two blocks A and B that do not self-assemble under at least some annealing conditions. The exposed block copolymer photoresist is processed to cleave at least some block copolymer bonds in the exposed selected regions. The exposed pinning layer is processed to create a chemical epitaxial pattern to direct the local self assembly of the block copolymer.

The invention relates to a method for producing low-temperature circle sheet micro gas box, which is characterized in that: the benzocyclobutene is used to process material linkage with humid etching or dry etching technique of semi-conductor in 250Deg. C, to realize the circle sheet air-tightness sealing linkage of chip-level gas box. The invention comprises a atom gas box containing a chip-level atom clock gas box, a high-precision magnetic field sensor gas box, a atom feedback glimmer frequency stabilizer; a atom gas box containing a atom light filter, with glimmer Fabry-Perot chamber. The linked BCB glue is in 0.2ª–m thickness, the air-tightness of sealed He gas can reach 2.1-5.9X10-4Pa cm3/s, and the linkage strength is higher than 4.65MPa, while the thermal cycle reliability can fully reach the packing standard of micro electric device.

The invention discloses a connecting method for TiAl-Ni dissimilar metal. According to the method, a block amorphous alloy material serves as a middle layer during welding, and connection is achieved through the superplasticity of the amorphous alloy material in a supercooled liquid region. Then the amorphous layer is dispersed into a base material by improving the temperature, and therefore metallurgical bonding welding is achieved. The connecting method is particularly suitable for welding of plates. By means of the welding method, a TiAl-Ni dissimilar metal welding connector with high strength and good forming performance can be obtained. When GH4049 and Ti-48Al serve as the base material and Ni40Ti50Cu10 amorphous alloy powder serves as the middle layer, the highest tension strength can reach 480 MPa.

The invention relates to a quartz vibrating beam accelerometer sensitive chip based on gold-gold bonding and relates to the processing field of the quartz vibrating beam accelerometer sensitive chip. The sensitive chip comprises a sensitive unit layer, an upper protection unit layer and a lower protection unit layer, wherein the upper protection unit layer is arranged at an upper surface of the sensitive unit layer, the lower protection unit layer is arranged at the upper surface of the sensitive unit layer, the upper surface of the sensitive unit layer is equipped with a first sealing ring, a lower surface of the sensitive unit layer is fixedly equipped with a second sealing ring, a lower surface of the upper protection unit layer is fixedly equipped with a third sealing ring, an upper surface of the lower protection unit layer is fixedly equipped with a fourth sealing ring, one side of the upper protection unit layer is symmetrically provided with two square holes, and the upper surface of the lower protection unit layer is symmetrically provided with two bosses at the corresponding position. The sensitive chip is advantaged in that a problem of compatibility difficulty caused by airtight packaging and internal electrodes is effectively solved, excellent portability is realized, and the sensitive chip can be applied to the preparation process of MEMS devices taking quartz, silicon and glass materials as base materials.

Disclosed is a photocurable resin composition for nanoimprint, containing a curable monomer component with or without a binder resin. The composition further contains 0.001 to 5 parts by weight of a compound having a reactive functional group and a hydrophobic functional group in the same molecular skeleton, per 100 parts by weight of the total amount of the curable monomer component and binder resin. Preferably, the reactive functional group is at least one functional group selected from the group consisting of hydroxyl groups, epoxy groups, vinyl ether groups, oxetanyl groups, alkoxysilane groups, and free-radically polymerizable vinyl groups, and the hydrophobic functional group is at least one functional group selected from the group consisting of fluorine-containing groups, alkylsilane groups, alicyclic hydrocarbon groups, and aliphatic hydrocarbon groups having 4 or more carbon atoms.

Provided is an active light sensitive or radiation sensitive resin composition which contains a compound (A) represented by General Formula (I) or (II):

in the formulae, each of Y₁ and Y₂ represents a monovalent organic group; each of M₁⁺ and M₂⁺ represents an organic onium ion; each of X₁ and X₂ represents a group that is represented by —S—, —NH—, or —NR¹—; R¹ represents a monovalent organic group; each of n1 and n2 represents an integer of 1 or more; and R¹ and Y₁ or Y₂ may bond with each other to form a ring.

With the tendency of reducing the size of semiconductor circuit patterns, edge roughness on a resist pattern is increased when pattern dimensions required are close to the size of the resist molecules. The present invention provides a technique for preventing degradation of the device performance and negative effects over the system performance caused by the phenomena. A photoresist compound is used, which is a molecule having functional groups that are chemically converted due to an action of an acid with reduced solubility in alkaline developer.

The invention provides a temperature-controlled mechanical property test device for a thin film and belongs to the technical field of material property tests and optical measurement mechanics. The temperature-controlled mechanical property test device mainly comprises a temperature control part, a deflection measurement part, a pressure loading part, a test piece clamping structure and a data receiving and displaying part. During a test, an electric heating tape heats up gas in a pressure cavity to a certain temperature, and an injector is pushed to perform pressure loading; a flow equalizing plate in the pressure cavity ensures relatively uniform pressure exerted on the thin film; the increasingly rising pressure enables the thin film mounted on a test piece table to be subjected to bulging deformation; a laser displacement sensor above the test piece table is used for measuring central deflection of the deformed thin film in real time; and the data receiving and display part is used for receiving and displaying pressure and deflection data. In combination with a film-bulging theoretical model, such mechanical parameters as the elasticity modulus of the thin film at a certain temperature can be obtained according to such measured data as pressure and deflection.

The invention discloses a pneumatic rubber expansion core shaft. The pneumatic rubber expansion core shaft comprises a core shaft and a top sleeve, wherein the core shaft is provided with a shaft shoulder; a first stepped hole is formed in the top sleeve, the first stepped hole comprises a large-diameter hole and two small-diameter holes which are equal in radius, and the two small-diameter holes are matched with the core shaft; a first rubber sleeve and a second rubber sleeve are respectively arranged in positions, which are positioned at two sides of the top sleeve, of the core shaft in a sleeving way, the first rubber sleeve is close to the shaft shoulder, the second rubber sleeve is far away from the shaft shoulder, a separating piece is arranged between the first rubber sleeve and the shaft shoulder, the outer side of the second rubber sleeve is also provided with a pneumatic cylinder, the pneumatic cylinder is also internally provided with a pneumatic valve, the pneumatic valve leans against the inner wall of the pneumatic cylinder, and the outer side of the pneumatic valve is provided with a pushing rod. According to the pneumatic rubber expansion core shaft disclosed by the invention, the technical defect that the supporting location on a pipe cannot be accurately carried out by using the pipe as the center or the requirement on the roughness of the inner wall of the pipe is higher at present is overcome, accurate location can be carried out by using the pipe as the center, and the requirement on the roughness of the inner wall of the pipe is not high.

The invention provides a device for the composite steel plate shearing tests. The device is composed of three parts: an electronic universal tensile testing machine, a base of a shearing clamp, and a pressing device of the shearing clamp. The base of the shearing clamp comprises a blade, a blade seat, and a shearing base. The pressing device of the shearing clamp comprises a sample pressing device base, a sample backup plate, and a bolt for adjusting the sample gap. The device fully utilizes the auxiliary structure of a testing machine hydraulic clamp, the precise control of the test process is guaranteed, the electronic universal tensile testing machine does not need to be changed, the operation is simple and convenient, the design is reasonable, the cost is saved, and the device is user-friendly and convenient.

The actinic ray-sensitive or radiation-sensitive resin composition includes a crosslinking agent having a polarity converting group and an alkali-soluble resin, in which the polarity converting group is a group capable of decomposing by the action of an alkaline aqueous solution to generate a carboxylic acid or sulfonic acid on the side having a crosslinking group.

An object of the present invention is to provide a negative resin composition which can produce a pattern with high sensitivity, high resolution and low line edge roughness in pattern formation by exposure to electron beams or EUV, a method for producing a relief pattern and an electronic component using the negative resist composition.

Disclosed is a negative resist composition comprising a phenolic compound (A) which has: two or more phenolic hydroxyl groups per molecule; one or more substituents of one or more kinds selected from the group consisting of a hydroxymethyl group and an alkoxymethyl group per molecule in the ortho-position of any of the phenolic hydroxyl groups; and a molecular weight of 400 to 2,500, wherein the content of the phenolic compound (A) is 70% by weight or more of the total solid content of the negative resist composition.

The invention discloses a five-cylinder electric magnetic engine, which comprises an engine body, support sleeves, connecting rods, an output shaft an a flywheel mechanism, wherein the engine body comprises a machine body and a machine cavity; the machine cavity is arranged in the machine body; the support sleeves are sleeved with the machine cavity in the machine body; permanent magnet groups are arranged between the machine body and the support sleeves; pistons are assembled in the support sleeves; a coil assembly winds one end of each piston and is fixed on each piston; the outer cylindrical surfaces of the support sleeves and the permanent magnet groups are in interference fit; the permanent magnet groups and an air cylinder body are in interference fit; the pistons and the inner cylindrical surfaces of the support sleeves are in interference fit; each piston is connected with one end of each connecting rod; the other end of each connecting rod is connected with the output shaft; the output shaft is located at the center of the machine body; the rotating center of the flywheel mechanism is connected with the output shaft; and off centers of the eccentric structure are distributed in a circumference array around the center. The five-cylinder electric magnetic engine is simple in structure, low in cost, simple and reliable in control principle, high in response speed, high in torque, environment-friendly and energy-saving; and consumption of the traditional fuel energy is reduced.

A method of manufacturing a master of an optical information recording medium includes a resist layer formation step of using a resist to form a resist layer on an upper surface of a substrate, an exposure step for selectively exposing the resist layer to cause a change of state in the resist layer, and a development step for performing an alkali development process on the resist layer after the exposure step. The resist is primarily composed of an inorganic material and contains at least Te and O, and further contains a stabilizing additive having a lower solubility than TeO₂ in an alkaline environment.

The invention relates to the field of welding quality detection, in particular to a quality detection device. The quality detection device comprises an integrated probe set, a driving module and a collection module, wherein the integrated probe set comprises multiple integrated probe components arranged in pairs, each integrated probe component is composed of a driving end and a collection end, the driving end of each integrated probe component is matched with the driving end of another integrated probe component arranged in pairs, and the collection end of each integrated probe component is matched with the collection end of the corresponding integrated probe component arranged in pairs. The invention furthermore relates to a quality detection system, a quality detection method and the integrated probe component. According to the designed quality detection device and system and the quality detection method based on a weld joint, through cooperation of the integrated probe set, the driving module and the collection module, rapid detection of the welding quality of the whole weld joint is realized.