摘要:
Disclosed is a process for the preparation of metal vessels, which comprises lap-bonding both the circumferential end portions of upper and lower members, each consisting of a seamless formed metal cup, through a layer of a hot adhesive interposed therebetween, wherein a high frequency induction heating coil is arranged so that the coil covers a part, smaller than the semicircle, of the circumferential portion to be formed into a seam, which circumferential portion consists of said end portions engaged with each other through the hot adhesive layer, electricity is applied to the heating coil to induce an eddy current passing through said end portions and the circumferential portion and the heating coil are rotated relatively to each other, whereby both the end portions are heated and a seam is formed by heat bonding.
摘要:
Apparatus and method for assembling a pair of thin-walled metal container counterparts which are brought together axially, are rounded and one inserted into the other substantially without deformation of either of the pair of counterparts so that the inner part is allowed to expand, after insertion, radially and both parts at their juncture are stressed in hoop tension for tightly embracing an adhesive interposed therebetween and thereby insure a good bond at the seam.
摘要:
A metal vessel has a metal bottomed cup-shaped lower member and a metal cup-shaped upper member, the upper and lower members being bonded together by a circumferential side seam. The upper member has a pouring mouth having a small diameter in the central portion thereof. The metal vessel is formed by lap-bonding the circumferential open ends of both the upper and lower members. The side wall of the upper member is formed by subjecting a primer-coated tin-plated steel sheet to draw forming at a side wall plastic forming ratio R of from 1.1 to 1.8; the side wall plastic forming ratio R being defined by the following formula: ##EQU1## wherein W stands for the weight (g) of the blank of the upper member, t stands for the thickness (cm) of the blank of the upper member at the side wall, .rho. stands for the density (g/cm.sup.3) of the blank of the upper member, D.sub.0 stands for the inner diameter (cm) of pouring mouth of the upper member, and D.sub.1 stands for the average inner diameter (cm) of the side wall.In the circumferential bonded portion, the side wall of the lower member is bonded to the side wall of the upper member through an organic adhesive interposed between a primer coating applied to the side wall of the lower member and a primer coating applied to the side wall of the upper member. The bonding strength and resistance to leakage of the lap-bonded circumferential side seam are improved.
摘要:
Disclosed is a process for preparation of metal vessels, which comprises lap-bonding circumferential open end portions of outer and inner members, each consisting of a formed seamless metal cup, to each other through an adhesive, said process being characterized by fitting both the outer and inner members to each other through an adhesive layer interposed between the open end portions of both the members, heating the fitted portions of both the outer and inner members so as to melt the adhesive layer, and cooling the fitted portions so that the temperatures of the fitted portions of both the outer and inner members are substantially equal to each other just before solidification of the adhesive layer and the adhesive is filled between both the open end portions.
摘要:
Small-sized pressure vessels made of sheet metal which are suitable for the storage and carriage of pressurized liquid, pressurized gas and the like are provided herein, and also the method of manufacturing these pressure vessels which comprises in combination a process in which two cup-shaped pieces made of sheet metal are fitted, or a jointing ring made of metal or synthetic resin is fitted to the open end of one of both cup-shaped pieces along its inner or outer circumferential surface, and hot-melting type adhesives are applied to the jointing surface of each cup-shaped piece to which the jointing ring is attached and the jointing ring itself or the open end of the other cup-shaped piece. Also both cup-shaped pieces may be butted or fitted in their open ends in which, for example, one cup-shaped piece which has the jointing ring fitted thereto and the other cup-shaped piece are heated to 120.degree. C.-250.degree. C. to melt the adhesives and are then cooled to solidify the adhesives.
摘要:
Tool and method for embossing an artifact into a wall of a three-piece can, wherein a flat sheet or blank(s) of metal is transported along a transport bed (10) by several spaced apart groups of rollers (20, 22, 24), each having a top and a bottom roller. A rotating embossing roller pair (30) is provided between two of the groups of transport rollers, and driven by a servo drive (38). It embosses the artifact (11, 11′) into the flat, transported sheet or blank. The transport rollers, the embossing rollers and the sheet or blank have the same speed at the surface of the blank during embossing the artifact into the blank or sheet, and a length position of the artifact in the sheet or blank is determined, adjusted or corrected by a speed and position control (40) of the servo drive, driving the embossing roller pair (30) and shaping a cylindrical base shape of the can wall (15).
摘要:
A new and improved process for manufacturing a cylindrical container is disclosed herein. A drawing and ironing process is used to produce a more efficient container. This process eliminates the need for a part, thereby making the process more efficient and cost-effective.
摘要:
A can body which is reinforced by collapsed radially inwardly directed beads. The beads may either be normal to the axis of the can body or slope at an angle thereto. Maximum axial strength is obtained when the beads are normal to the axis of the can body while maximum panel strength is obtained when the beads slope at an angle to the axis. The can body is provided with normal open beads which are collapsed either during a flanging operation or a double seaming operation. When the beads slope relative to the axis of the can body, it is necessary that the originally formed open beads have configuration which will permit the collapsing of the beads while the beads remain in angular relation with respect to the axis of the can body.
摘要:
Disclosed is a draw-ironed metal vessel having a circumferential side seam, which is formed by lap-bonding of open end portions of upper and lower members, each consisting of a seamless molded metal cap, wherein the side wall of at least one of said upper and lower members is formed by draw-ironing a tin-plated steel plate at an ironing ratio of at least 20% and a spout having a diameter smaller than that of the side wall of the vessel is formed on the top wall of the upper member.
摘要:
A reform apparatus for reforming a bottom portion of a metallic beverage container is provided. The reform apparatus generally includes a pair of reform rollers interconnected to pivot arms. Spring are operably interconnected to the reform rollers such that the reform rollers a biased radially inwardly in an unactuated state. The springs at least one of spring bushings and compression springs. The reform rollers rotate radially outwardly when a wedge member pushes axially between the two pivot arms. The wedge member engages and imparts rotation to the pivot arms. An annular edge of each of the reform rollers contacts an inner wall portion of the bottom portion of the beverage container to form a groove of a predetermined size and shape.