B21B - CPC Classification

• B21B1/00 » Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section ; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations 31
• B21B11/00 » Subsidising the rolling process by subjecting rollers or work to vibrations, {e.g. ultrasonic vibrations} 7
• B21B13/00 » Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories 27
• B21B15/00 » Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills 48
• B21B17/00 » Rolling methods or mills specially designed for making or processing tubes 13
• B21B17/00 » Rolling methods or mills specially designed for making or processing tubes 13
• B21B17/00 » Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling 13
• B21B17/00 » Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling 13
• B21B19/00 » Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work 2
• B21B21/00 » Pilgrim-step tube-rolling, {i.e. pilger mills} 27
• B21B2201/00 » Special rolling modes 0
• B21B2203/00 » Equipment codes 0
• B21B2203/00 » Equipment codes 0
• B21B2203/00 » Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods 0
• B21B2203/00 » Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods 0
• B21B2205/00 » Particular shaped rolled products 5
• B21B2261/00 » Product parameters 1
• B21B2263/00 » Shape of product 1
• B21B2265/00 » Forming parameters 0
• B21B2267/00 » Roll parameters 1
• B21B2269/00 » Roll bending or shifting 0
• B21B2271/00 » Mill stand parameters 0
• B21B2273/00 » Path parameters 0
• B21B2275/00 » Mill drive parameters 0
• B21B23/00 » Tube-rolling not restricted to methods provided for in only one of groups , , , e.g. combined processes {planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling} 95
• B21B25/00 » Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group ; Accessories or auxiliary means therefor; {Construction of, or alloys for, mandrels or plugs} 63
• B21B27/00 » Rolls, {roll alloys or roll fabrication} ; Lubricating, cooling or heating rolls while in use 28
• B21B28/00 » Maintaining rolls or rolling equipment in effective condition 9
• B21B29/00 » Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls; {Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends } 50
• B21B3/00 » Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences {Rolling of aluminium, copper, zinc or other non-ferrous metals} 275
• B21B31/00 » Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames 6
• B21B33/00 » Safety devices not otherwise provided for ; Breaker blocks; Devices for freeing jammed rolls {for handling cobbles; Overload safety devices} 3
• B21B35/00 » Drives for metal-rolling mills, {e.g. hydraulic drives} 26
• B21B37/00 » Control devices or methods specially adapted for metal-rolling mills or the work produced thereby 42
• B21B38/00 » Methods or devices for measuring, specially adapted for metal-rolling mills, e.g. position detection, inspection of the product 111
• B21B39/00 » Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills 15
• B21B41/00 » Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters 17
• B21B43/00 » Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed 4
• B21B45/00 » Devices for surface {or other} treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills 14
• B21B47/00 » Auxiliary arrangements, devices or methods in connection with rolling of multi-layer sheets of metal 7
• B21B5/00 » Extending closed shapes of metal bands by rolling 13
• B21B9/00 » Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills 21
• B21B99/00 » Subject matter not provided for in other groups of this subclass 9