41results about How to "Avoid irregular deformation" patented technology

Provided is a method for manufacturing a container containing a content fluid, including: a molding step of stretching a bottomed tubular preform that is heated to a temperature at which the preform is stretchable so as to form the container by means of pressure of the content fluid injected into the preform through a mouth portion; a sealing step of sealing the content fluid by fitting a cap body to the mouth portion; and a pressurizing step of increasing an inner pressure of the container, wherein the container includes an invertible deforming portion that is freely invertible and deformable toward an inside of the container, and in the pressurizing step, the inner pressure of the container is increased by reducing a volume of the container by inverting and deforming the invertible deforming portion toward the inside of the container.

The invention discloses a thin-wall rotary type component cylindrical lathe cutting clamping method and device. According to the method, an inner hole of a thin-wall rotary type component is tightened, and the purpose of clamping the thin-wall rotary type component is achieved; the clamping device used in the method comprises a base, an elastic hollow shaft and a top rod with a threaded conical surface, wherein a guide hole is formed in the center of the base; the guide hole is in threaded connection with the top rod of the threaded conical surface; the elastic hollow shaft is arranged at theperiphery of the top rod with the threaded conical surface. The device is relatively simple in structure, convenient in clamping operation and reliable in clamping mode, the situation that the thin-wall rotary type component is deformed or scraped in cylindrical latch cutting operation is avoided. Not only is the processing precision improved, but also the processing rejection rate is reduced, andthe processing cost is reduced.

The invention discloses a plate shape control method of high-strength steel for a longitudinal beam of a commercial vehicle. The plate shape control method comprises the following steps that: 1) a hotblank is charged into a furnace; 2) the plate blank is heated; (3) rough rolling is conducted, specifically, a 1+5 rolling mode is adopted, bending amount of a C-shaped bend or an S-shaped bend in the last pass is controlled within +/-10mm, wedge shape control range is controlled within +/-20[mu]m, and rough rolling finishing temperature is controlled within 1040-1080 DEG C; (4) finish rolling isconducted, specifically, outlets of F1-F4 racks adopt large convexity value control, F5-F7 racks adopt an equal-proportion convexity control mode, and convexity control range of a finished product is0-20[mu]m; 5) layer cooling is conducted, specifically, a front-section ultrafast cooling and rear-section air cooling mode is adopted; 6) slow cooling is conducted, specifically, preheating is conducted in advance in a heat preservation wall, and a steel coil is hoisted into the heat preservation wall for slow cooling; and 7) straightening and flattening are conducted. According to the plate shape control method of the high-strength steel for the longitudinal beam of the commercial vehicle, the high-strength steel for the longitudinal beam of the commercial vehicle prepared is good in apparent plate shape, has no potential plate shape risk, and completely meets the high-standard requirement of a rolling forming process of the high-strength steel for the longitudinal beam of the commercial vehicle on the plate shape.

The invention discloses a plate shape control method for steel for a hot-rolled high-strength stirring tank body. The plate shape control method comprises the following steps that (1) hot blanks are charged; (2) plate blanks are heated; (3) rough rolling is conducted, specifically, a 1+5 rolling mode is adopted, the bending amount of C-shaped bending or S-shaped bending of the last pass is controlled within +/-10mm, the wedge-shaped control range is within +/-20[mu]m, and the rough rolling ending temperature is controlled to be 1040-1080 DEG C; (4) finish rolling is conducted, specifically, large convexity value control is adopted for outlets of F1-F4 racks, an equal proportion convexity control mode is adopted for F5-F7 racks, and the finished product convexity control range is 0-30[mu]m;(5) layer cooling is conducted, specifically, a front-section ultra-fast cooling and rear-section air cooling mode is adopted; (6) slow cooling is conducted, specifically, preheating is conducted ina heat preservation wall in advance, and steel coils are discharged from a production line and hoisted into the heat preservation wall for slow cooling; and (7) straightening and flattening are conducted. The steel for the hot-rolled stirring tank body is prepared according to the plate shape control method, the apparent plate shape of a material is good, the warping amount during discharging cutting is less than or equal to 5mm, and the requirements of the welding process of an automobile concrete stirring tank body for the plate shape are completely met.

The invention relates to an optical coupling lens. The optical coupling lens comprises a coupling body and two plug pins, wherein the coupling body comprises a front surface, a back surface, a first optical surface, a second optical surface, a reflecting surface, a plurality of first converging parts and a plurality of second converging parts, wherein the front surface and the back surface are parallel to each other and are back to each other; the first optical surface is sunken from the front surface towards the back surface; the second optical surface is perpendicular to the first optical surface; the reflecting surface is inclined relative to the first optical surface and the second optical surface; the first converging parts and the second converging parts are respectively positioned on the first optical surface and the second optical surface. The first converging parts are positioned between the two plug pins and are in one-to-one correspondence with the second converging parts. Each plug pin comprises a cylindrical body part, a boss part which extends from the end surface of the body part, and a buffer part. The boss part is of a bowl-shaped structure and comprises a top surface which is far away from the body part; the diameter of the boss part is gradually reduced in the direction from the end surface to the top surface. The buffer part is arranged on the top surface so as to buffer the methane gas which is concentrated at the top surface when the optical coupling lens is formed.

A method of thermal crystallization treatment by means of an inverted conveyance type jig, by which a cylindrical mouthpart of preform with high dimensional accuracy can be obtained; a process of thermal crystallization treatment for a cylindrical mouthpart, conducted in high productivity; and a process of biaxially stretching blow molding. There is provided a method of while mounting a preform of synthetic resin for biaxially stretching blow molding on an inverted conveyance type jig, conducting thermal crystallization treatment of a cylindrical mouthpart thereof, wherein the thermal crystallization treatment is carried out while having, fitted on the jig, a preform with a gap provided under the top plane of the cylindrical mouthpart of the preform.

The invention discloses an air suction inverted twisting type single-sheet feeding device. The air suction inverted twisting type single-sheet feeding device comprises a sheet feeding table, and the sheet feeding table comprises a rack, a lifting mechanism and a sheet feeding plate; the rack of the sheet feeding table comprises a vertical plate in the middle and side supporting plates arranged at the left and right ends; the lifting mechanism is mounted at the back of the vertical plate; the sheet feeding plate is mounted on the lifting mechanism; a suction nozzle air guide tube and a cam driving shaft are horizontally mounted between the two side supporting plates; at least two suction nozzles which communicate with the suction nozzle air guide tube are sequentially mounted on the suction nozzle air guide tube in the length direction; the suction nozzle air guide tube is above the sheet feeding plate; the cam driving shaft is in front of the vertical plate; and a moving groove is formed in each of the two side supporting plates, so that the suction nozzle air guide tube can drive the suction nozzles to cross to the position in front of the vertical plate. According to the air suction inverted twisting type single-sheet feeding device, a scattered sheet baffle plate is vertical and rod-like, the rigidity and strength can be fully guaranteed, the front ends of sheets on the sheet feeding table are horizontal and consistent, wavy concave and convex parts are avoided, and the front ends of the sheets are synchronously bent according to the amount of elastic deformation and bow tension of the sheets.

In a method for cutting a loaf-shaped food, a loaf of the food is advanced toward a cutting device by means of a feed apparatus and the loaf is cut into slices, strips or cubes by means of said cutting device such that the loaf is fixed during the feed movement by means of a vacuum gripper that is advanced together with the loaf and a negative pressure is generated within an interior of a contact element of the vacuum gripper and acts upon a fixing region of the surface of the loaf in a suction region of the contact element; in order to avoid the risk of defects due to a vacuum loss and a loss of the fixing force, it is proposed that the suction region is divided into at least two separate partial suction regions and the interior of the contact element is accordingly divided into at least two partial interiors, wherein the partial suction regions respectively adjoin one another, are separated from by a contact line and form separate partial fixing regions.

The present invention relates to a container consisting of a synthetic resin, the container having a bottom structure configured so that the deformation of the bottom due to a change in pressure within the container is uniform and gradual and so that the bottom structure has pressure reduction absorbing performance capable of reliably accommodating a large change in pressure within the container. A container consisting of a synthetic resin has, formed at the bottom thereof: an annular leg comprising an outer peripheral wall which continues from the barrel, a ground contact section, and an inner peripheral wall; and a raised bottom located on the inside of the inner wall surface of the leg at a position above the ground contact section. The container consisting of a synthetic resin is characterized in that the raised bottom protrudes further downward than the base of the inner peripheral wall of the leg, in that the raised bottom has spiral arc-shaped protrusions extending from the outer edge of the center section of the raised bottom toward the outer peripheral side, and in that arc-shaped recesses are formed between adjacent arc-shaped protrusions.

The invention discloses a grinding machine for high-strength titanium alloy production. The grinding machine structurally comprises a machine body, a controller, a transmission motor, a transmission shaft, a grinding disc, an adjusting disc and a containing plate. The grinding machine has the beneficial effects that through cooperation of an arranged stabilizing and protecting mechanism and a tightening structure, when a titanium alloy rod is ground, pressing acting force is provided while the gravity of the tail end force is unbalanced, the phenomenon of shaking unbalance cannot happen when the gravity of the tail end of the titanium alloy rod is small and the gravity of the front end of the titanium alloy rod is small, and the situation that the tail end of the titanium alloy rod irregularly deforms after being ground is prevented; and through cooperation of an arranged scraping strip and a grinding magnetic assembly of the tightening structure, heat generated during grinding of thetitanium alloy rod is converted into magnetism, the surface with the iron scrap adsorption function is magnetically weakened, grinding sand is removed and collected, and the situation that the thickness of the titanium alloy rod is increased while iron scraps attached to the surface are ground is avoided.

Provided is a stent having a novel structure, the stent simultaneously having both the stability of shape against the action of external force, such as compression force, tensile force, or torsional force, and high flexibility in the direction of twisting of the stent. Connection groups (20) are provided at three or more positions set at circumferentially equally-spaced intervals, the connection groups (20) each comprising connection sections (14) which are disposed circumferentially close to each other between axially adjacent cylindrical divided bodies (12c). The connection groups on both sides axially of each of the cylindrical divided bodies (12c) are provided at positions circumferentially offset from each other while at least one bend (18) is present between the connection groups.

The invention discloses a stretching device for a shell of an automobile silencer and relates to the technical field of manufacturing of automobile silencers. The stretching device comprises a bottomplate, wherein a lower pressing plate is arranged on the bottom plate, a lower pressing power device is also arranged on the bottom plate, an upper pressing plate is arranged on the lower pressing power device, and two heating devices are also arranged on the lower pressing power device; each heating device comprises a first cylinder and a second cylinder; positioning plates are arranged on pistonrods of the first cylinders, and are fixedly connected with fan-shaped electric heating plates; connecting plates are arranged on piston rods of the second cylinders, and comprise first plate bodiesarranged on the corresponding piston rods of the second cylinders; second plate bodies are rotationally arranged at the ends, away from the positioning plates, of the electric heating plates; threadedholes are formed in the first plate bodies and the second plate bodies, and the first plate bodies and the second plate bodies are mutually fixed by screws connected with the threaded holes. The stretching device has the advantages of being convenient to use, good in stretching effect and the like.

The invention provides a pressure adjusting assembly. The pressure adjusting assembly can solve the problem that an existing pressure adjusting assembly cannot effectively stabilize the pressure of engine oil in a main oil duct all the time. The pressure adjusting assembly comprises an adjusting threaded rod and a spring, wherein the adjusting threaded rod and the spring are installed in a pressure adjusting assembly section arranged at the tail end of the main oil duct, the adjusting threaded rod is connected with the inner wall of a slide way of the pressure adjusting assembly section in a threaded mode, and is tightly locked through a lock nut, a locating shaft of the adjusting threaded rod is sleeved with the spring, the bottom end of the spring is fixedly connected with the top surface of the adjusting threaded rod, the tail end of the pressure adjusting assembly section is sealed through an oil seal nut, and an oil drainage port is formed in the oil duct wall, close to the main oil duct, of the pressure adjusting assembly section. The pressure adjusting assembly is characterized in that an adjusting plunger is further installed in the pressure adjusting assembly section, a restraining groove is formed in the bottom end of the adjusting plunger, the top of the spring is embedded into the restraining groove, the top end of the spring is fixedly connected with the groove bottom surface of the restraining groove, the area of the top surface of the adjusting plunger is larger than the sectional area of the main oil duct, the height of the adjusting plunger is larger than that of the oil drainage port, and the adjusting plunger and the oil duct wall of the pressure adjusting assembly section are in clearance fit.

The invention relates to the field of buildings, in particular to an electric hydraulic modeling clamp. The electric hydraulic modeling clamp comprises a support. A pressure bearing piece is arrangedat the top of the support, provided with a detachable pressure applying device and further provided with a pressure bearing plate which bears the pressure conducted by the pressure bearing piece. Thepressure bearing plate is arranged above the support, and the two ends of the pressure bearing plate are connected with transmission strips which are provided with extruding pieces. The extruding pieces and the support are in transmission connection with each other, and extruding heads are arranged at the bottoms of the extruding pieces. A return spring matched with the pressure bearing piece is arranged in the support. Compared with the prior art, a color steel tile can be quickly modeled, the color steel tile is evenly stressed during modeling, the strength loss is small, breakage is avoided, a photovoltaic device can be mounted directly, and the problems that during mounting of the photovoltaic device, punching needs to be conducted on the color steel tile, the time and labor are wasted, and water leakage hidden danger exists are solved.

A container for material and oil compatibility tests comprises a main body, a front close cover, a rear close cover and three or four guide bars each possessing screw threads at two ends; the main body consists of a bellows, and a front flange disc and a rear flange cover respectively welded at the front end and the rear end of the bellows; the front close cover covers a front flange and is connected with the front flange disc via bolts; the rear close cover covers a rear flange; each guide bar penetrates the front close cover, the front flange disc, the rear flange disc and the rear close cover; the positions of each guide bar, which are at the front side of the front close cover and at the rear side of the front flange disc, are respectively provided with a front spacing nut and a rear spacing nut, and the distance between the front spacing nut and the rear spacing nut is larger than the thickness of the front close cover and the front flange disc; the positions of each guide bar, which are at the front side of the rear flange disc and the rear side of the rear close cover, are respectively provided with a front locking nut and a rear locking nut, and the front locking nut and the rear locking nut fixes the corresponding guide bar, the rear flange disc and the rear close cover together; and the rear close cover is provided with two through holes respectively for oiling and vacuum pumping, and the through holes are connected with gate valves. The container for the material and oil compatibility tests is capable of effectively isolating air and compensating the volume needed by oil thermal expansion.

The invention relates to a forming process and system for manufacturing packaging expanded polystyrene. The process comprises the steps of (1) first-stage expansion, (2) second-stage expansion, (3) material feeding, (4) three-stage expansion, (5) thermal insulation, (6) primary cooling, (7) secondary cooling, (8) final cooling and (9) mould removing. The system comprises a first-stage expansion machine, a second-stage expansion machine, an expanded polystyrene forming machine, a water bin used for the primary cooling, a drying purifier for the secondary cooling, a negative pressure cooling device for the final cooling, and a boiler used for generating water vapor. According to the process and the system, two purposes can be realized by one system, so that the cost of production and manufacturing can be lowered; water in the packaging expanded polystyrene can be dried by thermal insulation, so that the forming quality is improved; the water cooling and the negative pressure cooling are combined, so that the cooling of a mould is accelerated, the processing and manufacturing period is shortened, and the production efficiency is improved; the cooling of the mould is divided into three stages, the phenomena of holes, and incompleteness and irregular deformation of the packaging expanded polystyrene caused by abrupt temperature drop can be avoided, so that the forming quality of the packaging expanded polystyrene can be effectively improved.