A plant (10) and a method are described for manufacturing ferromagnetic cores of electric machines formed by a plurality of laminations which are packed and joined together by gluing in a blanking/punching tool (15) to which a continuous metal laminate (11) of ferromagnetic material is fed. In addition to the blanking/punching tool, the plant comprises at least one unit (21) for applying an adhesive material to a surface of the continuous metal laminate, at least one unit (25) for applying an activating compound to the opposite surface of the continuous metal laminate and at least one control unit (22) for controlling the application of the adhesive material and the activating compound into the respective application units. The unit for applying an adhesive material to a surface of the continuous metal laminate comprises a printing device (23, 60) and at least one transfer element (28, 51) on which the printing device deposits the adhesive material according to one or more impressions of a shape corresponding to the outline of each of the laminations. The adhesive material is then applied by the at least one transfer element to a surface of the continuous metal laminate according to the outline of each lamination, which is defined by the impressions.

Disclosed herein are plaster boards that include first and second layers of hardened plaster material, a liner attached to the first layer of hardened plaster material, and a first material (e.g., a polymer material such as a viscoelastic polymer) adhered between the liner and the second layer of hardened plaster material. The liner includes one or more structurally weakened regions each extending substantially from a first edge to a second opposing edge of the plaster board. The structurally weakened regions of the liner may facilitate creation of a fissure that propagates substantially within a plane within the plaster board. Methods for making the plaster boards may involve drying wet plaster material while it is in contact with a liner having structurally weakened regions, processing a liner to form its structurally weakened regions while in contact with wet plaster material, or processing a liner to form its structurally weakened regions while in contact with hardened plaster material.

A production method for a waterproof and wear-resistant composite floor, comprising: first manufacturing a PVC composite layer preform (3); then performing a corona treatment and a punching treatment on a soft cushion layer (2); and finally, compounding, at one time, the PVC composite layer preform (3), the soft cushion layer (2) and a waterproof substrate layer (1) into one. Said process is simple and easy to implement, shortening the production cycle, reducing the manpower and material resources required by the production process and reducing the production cost; moreover, the waterproof and wear-resistant composite floor produced has a simple structure, and also has very good waterproof and wear-resistant performance; in addition, the waterproof and wear-resistant composite floor will not swell, and will also not split into layers or deform easily.

A packaging material having a core layer and inside and outside laminate portions is provided. The packaging material comprises a first area to form a first package, and a second area to form a second and adjacent package. The first area and the second area have a transversal sealing area between them, and the core layer is provided with at least one weakening portion at the transversal sealing area.

Disclosed herein are plaster boards that include first and second layers of hardened plaster material, a liner attached to the first layer of hardened plaster material, and a first material (e.g., a polymer material such as a viscoelastic polymer) adhered between the liner and the second layer of hardened plaster material. The liner includes one or more structurally weakened regions each extending substantially from a first edge to a second opposing edge of the plaster board. The structurally weakened regions of the liner may facilitate creation of a fissure that propagates substantially within a plane within the plaster board. Methods for making the plaster boards may involve drying wet plaster material while it is in contact with a liner having structurally weakened regions, processing a liner to form its structurally weakened regions while in contact with wet plaster material, or processing a liner to form its structurally weakened regions while in contact with hardened plaster material.

An apparatus and method for bonding sheet metal parts to a laminated core in which sheet metal parts are punched from an electrical steel strip, the punched sheet metal parts are stacked and bonded at least integrally to form a plurality of laminated cores, and in order to facilitate the separation of the integrally bonded sheet metal parts into laminated cores, a separating agent is provided at least between two stacked sheet metal parts in that with the punching stage for punching the sheet metal part, the separating agent is both punched from a separating agent support and provided to the sheet metal part. In order to embody the application of a geometrically accurate separating agent in a reproducible and simple way, it is proposed that the separating agent be punched from the sheet-like separating agent support that is supplied below the electrical steel strip.

Provided are a fruit bag and a method thereof, for example, a fruit bag for a fruit of a fruit tree may include: an inner surface configured to surround the fruit; an outer surface configured to exposed to an outside; an opening formed in a predetermined size at the same position of the inner surface and the outer surface; a nano membrane generated by an electrospinning of a polymer solution as a raw material for nano-fibers; a non-woven fabric for strength reinforcement laminated on one or both sides of the nano membrane and a nano-lamination film covering the entire surface of the opening thereby while maintaining excellent air permeability, it is possible to properly maintain the humidity and against various external environmental effects.

A method of forming an electric machine lamination includes punching a sheet having a first composition to form a cavity and a compressed region at a perimeter of the cavity. The method further includes depositing, within the cavity and on the compressed region, a deposit material having a second composition different than the first composition. The method further includes scanning a beam along the deposit material to form a bound material within the cavity and on the compressed region.

The present disclosure relates to a packaging material comprising a core material layer having an area radially extending from an edge of a hole in said core material layer, wherein said area has a linearly or non-linearly decreasing core material layer thickness towards the edge of the hole. The disclosure further relates to a method for production of such a packaging material, and uses thereof.

An electric machine includes a plurality of planar laminations stacked to form an electrical steel rotor having openings defining magnet pockets and adjacent inner side pockets. The adjacent inner side pockets define a center bridge therebetween and have blasted surface portions such that compressive stress layers are induced along edges of the center bridge to strengthen the center bridge.