Bottle making method

FIELD: plastic working of metals.

SUBSTANCE: method comprises steps of making shell, upper bottom, mouth, lower bottom and joining all parts by welding; forming lower bottom as one piece with backing flanged ring; inserting lower bottom into shell along backing ring until flange rests upon shell; butt welding shell and lower bottom on backing ring.

EFFECT: enhanced centering due to accurately inserting lower bottom to shell, improved quality of welded seam of lower bottom and shell, lowered labor consumption for making bottle.

1 dwg, 1 ex

 

The invention relates to the field of metal forming and can be used in the manufacture of containers from sheet stock with the subsequent welding.

Known methods of manufacturing containers from sheet blanks by means of deep drawing, steel billets and sheet workpiece with the subsequent welding parts (GOST 51753-2001, GOST standard 949-73, GOST 12247-78, GOST 15860-84).

However, the manufacture of cylinders of sheet blanks, followed by a deep hood and billet requires high energy costs and complex equipment, which leads to high costs.

The manufacture of containers from tubular workpieces to be useful for production of large cylinders of more than 200 litres and pressure - more than 400 at (40 MPa).

A known method of manufacturing a high-pressure bladder (RF patent No. 2194916, F 17 1/00, 21 D 51/24, publ. 20.12.2002), which includes fixing and fastening the pipe cover and the bottom, and sealing of joints. At first carried out inside the upper part of the tube fixing intermittent welding seam of the cover, and in the lower part of the tube - plate, then the radial intermittent formation of the ends of the tube, protruding from the inserted inside the pipe cap and bottom, in the form of individual segments in places where there is no fixing of the weld. In the end produce hermetical the joints by applying in the unformed end of the pipe corner welding seams, and in formed - lap-welded seams.

The disadvantages of the method are complex fabrication billets with curly ends, time-consuming process of manual welding, which is not amenable to automation.

The closest technical solution adopted for the prototype, is a method of manufacturing a cylinder (patent RF №2009748, 21 D 51/24, publ. 30.03.1994), including the manufacture of cylindrical shell, a cap with an inner cone and an outer cylindrical threads, top plate, bottom plate with a convex bottom and cylindrical side surfaces connecting the upper and lower ends of the shell by welding. The lower plate is connected with the cylindrical shell convex surface inside the shell, and the side cylindrical surface of bends.

The disadvantages of this method are the complexity of manufacturing a cylinder for centering the bottom of the bottom with the sides, and the unreliability of the weld shell with the bottom plate.

The technical problem solved by the invention is to reduce the complexity of the manufacturing process of the cylinder, improving alignment by providing accurate installation of the bottom of the bottom of the cowling and the quality of the welding seam of the lower plate with the shell.

The problem is solved due to the fact that in the method of manufacture of the container, including the manufacturer obachan is, top plate, cap, bottom plate and the connection of all parts welding, according to the invention the bottom plate perform well with swivel ring flared, insert the bottom the bottom of the cowling back on the ring to lock the shell flared and produce welding of the shell with the lower bottom of the butt on a base ring.

The invention is illustrated in the drawing of the proposed container.

The container consists of a shell 1, the top plate 2 with hole cap 3, the bottom plate 4 with swivel ring 5 made in conjunction with the Shoe 6 and the frame 7.

A method of manufacturing a container includes the manufacture of shell 1, the bottom plate 2 with hole for the filler neck, the filler neck 3 with internal and external thread under the hood, the bottom plate 4 along with swivel ring 5 made in conjunction with the Shoe 6 and the frame 7. Then assemble a cylinder and welding. The alignment is carried out by placing the bottom of the bottom of the cowling back on the ring until it stops jackets with flared on the bottom. The welding of the shell with the bottom plate produced in the junction removable lining.

The connection of the cap with the upper plate is produced by welding along the edges of the openings of the top plate. The manufacture of the container according to the proposed method eliminates the production of rings under the hood and its attachment to the cylinder, and also allows the gain is to be welded seam when connecting the shell with the bottom plate by performing butt welding on a base ring, made integral with the bottom plate. The execution of the lower concave bottom allows you to increase the capacity of the container when the same external dimensions of the container. Welding the cap to the upper bottom produce butt on the edge of the hole of the upper plate that allows you to change the outer diameter of the lower part of the neck and its shape to provide strength properties of the weld. Welding the top plate with the cowling on a removable lining allows continuous penetration of the wall thickness.

Example. From sheet metal to the rolls bend the shell has a cylindrical shape with a diameter of 219 mm and a length of 1100 mm Weld the edges of the shell longitudinal seam (it is possible to manufacture the shell spirally on the mill). The presses are made of the upper spherical bottom with a hole for the mouth. Hole do the same diameter as openings in its lower part. Made a neck with an internal tapered threads and the outer cylindrical thread under the hood. The lower part of the neck do with a diameter of 90 mm is Made lower concave bottom at the same time with swivel ring, flared and boot. Assemble a container of parts and welding. The top plate are welded to the ring with removable copper lining. Then weld the neck to the upper bottom. The bottom plate is inserted into the shell back on the ring until it stops flared and produce a butt weld ends on a base ring. After welding the test cylinder on workmanship.

The manufacture of the container according to the proposed method reduces the complexity of manufacture of the container, to provide a reliable alignment of the parts and to improve the strength properties of the weld by performing butt welding on a base ring, as well as to increase the capacity of the container due to the concave bottom.

The method of manufacture of the container, including the manufacture of shells, top, bottom, neckline, the bottom plate and the connection of all parts welding, characterized in that the bottom plate perform well with swivel ring flared, insert the bottom the bottom of the cowling back on the ring to lock the shell flared and produce welding of the shell with the lower bottom of the butt on a base ring.



 

Same patents:

FIELD: plastic working of metals, namely manufacture of high-pressure bottles.

SUBSTANCE: method comprises steps of forming shell; swaging at least one open end of shell; forming bottom and mouth while making at least two mutually joined cone surfaces and increasing central angle from shell to mouth; at least after one swaging operation performing heat treatment of swaged end of shell. High-pressure bottle includes shell and two bottoms. One bottom has mouth for placing locking means. Bottom and mouth are made as one piece. Bottom from shell until mouth is in the form at least of two joined lateral surfaces of circular regular truncated cones. Each such joint is performed due to joining lateral surfaces of truncated cones along lines of bases of their small and large diameters respectively. Said joints may be smooth, with radius transitions.

EFFECT: simplified design of bottle, enhanced technological effectiveness of making it.

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FIELD: plastic working of metals, namely manufacture of high-pressure bottles.

SUBSTANCE: method comprises steps of forming shell; swaging at least one open end of shell; forming bottom and mouth while making at least two mutually joined cone surfaces and increasing central angle from shell to mouth; at least after one swaging operation performing heat treatment of swaged end of shell. High-pressure bottle includes shell and two bottoms. One bottom has mouth for placing locking means. Bottom and mouth are made as one piece. Bottom from shell until mouth is in the form at least of two joined lateral surfaces of circular regular truncated cones. Each such joint is performed due to joining lateral surfaces of truncated cones along lines of bases of their small and large diameters respectively. Said joints may be smooth, with radius transitions.

EFFECT: simplified design of bottle, enhanced technological effectiveness of making it.

6 cl, 4 dwg

FIELD: plastic working of metals.

SUBSTANCE: method comprises steps of making shell, upper bottom, mouth, lower bottom and joining all parts by welding; forming lower bottom as one piece with backing flanged ring; inserting lower bottom into shell along backing ring until flange rests upon shell; butt welding shell and lower bottom on backing ring.

EFFECT: enhanced centering due to accurately inserting lower bottom to shell, improved quality of welded seam of lower bottom and shell, lowered labor consumption for making bottle.

1 dwg, 1 ex

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EFFECT: simplified process of making envelopes with enhanced mass characteristics.

2 cl, 4 dwg, 1 ex

FIELD: storing or distributing liquids or gases.

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EFFECT: reduced labor and metal consumptions.

1 cl, 3 dwg

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EFFECT: improved quality of articles due to prevention of stability loss.

16 cl, 2 ex, 6 dwg

FIELD: plastic metal working.

SUBSTANCE: method comprises setting the blank in the mandrel provided with the cylindrical and shaped sections, locking the blank in the cylindrical section of the mandrel, and affecting the blank by deforming rollers. The shaped section is initially formed by moving the rollers in different trajectories during one or several runs. Upon unlocking the cylindrical section, the blank is locked in the shaped section and the cylindrical section is drawn by moving the rollers in the opposite direction.

EFFECT: expanded function capabilities.

1 cl, 3 dwg, 2 tbl

FIELD: mechanical engineering; pressure vessels.

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EFFECT: facilitated and reduced cost of manufacture.

2 cl, 1 dwg

FIELD: plastic metal working.

SUBSTANCE: invention can be used for making of bottles from sheet blanks. Proposed method includes making of shell, top plate, neck, bottom plate made integral with support ring, flanging and shoe, assembling and connecting the parts by welding. Shell is butt-welded to bottom plate on support ring. Both plates are made of blanks of equal size and in form of bottom plate. When making top plate, support part of shoe is calibrated to bring its diameter to diameter of shell.

EFFECT: reduced labor input.

1 ex, 1 dwg

FIELD: plastic working of metals, namely manufacture of high pressure vessels from recovered ammunition.

SUBSTANCE: method comprises steps of producing blanks, subjecting them to hot deformation, hot molding of vessel mouths, mechanically working vessel mouths; subjecting articles to heat treatment for providing desired strength of vessels; using as blanks bodies of recovered artillery fragmentation type or high-explosive shells with removed collar; cutting each shell in joining zone of its ogival and cylindrical parts for preparing two blanks, namely cone blank with through opening and sleeve like blank with bottom. Heat treatment is realized according to preset mode.

EFFECT: lowered cost, improved factor of metal usage due to using recovered bodies of artillery fragmentation type high-explosive shells, enhanced quality of using shell steels.

4 cl, 2 dwg, 2 ex, 5 tbl

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SUBSTANCE: plastic-coating metallic vessel comprises outer load-bearing plastic shell and inner thin-walled welded steel shell whose intermediate section is cylindrical, two bottoms, and connecting pipe. The connecting pipe and at least one of the bottoms are made in block. The method comprises rolling out the rod from its one end thus defining the flange having flat circular surface from one side, working the unrolled section of the rod to form the outer surface and inner passage of the connecting pipe, rotating tension of the flange, moulding the bottom of a given shape, connecting the bottom to the intermediate cylindrical section, and welding the parts.

EFFECT: reduced labor consumption.

4 cl, 3 dwg

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