# US 2014/0151481 A1 · Process for Connecting Functional Elements to a Shelf

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- Number: US 2014/0151481 A1
- Document ID: US20140151481A1
- Status: Published application
- Kind: A1
- Application number: 13/692,623
- Filed: 2012-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-03
- Assignees: BASF SE
- Applicants: BASF SE
- Inventors: Oskar Stephan
- Web page: https://patentgrep.com/patent/US20140151481A1

## CPC

- B23K 31/02: relating to soldering or welding
- B01F 27/071: {Fixing of the stirrer to the shaft}
- B01F 27/1121: pin-shaped
- B02C 13/2804: {the beater elements being rigidly connected to the rotor}
- B02C 18/18: Knives; Mountings thereof
- B23K 2101/001: {Turbines}
- B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06)
- B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02})

## Abstract

The invention relates to a process for connecting functional elements (14) to a shaft (10), comprising the following steps: (a) elevations (12) for receiving the functional elements (14) are formed, the elevations (12) being worked out of the shaft (10) by material removal, (b) the functional elements (14) are welded to the elevations (12) on the shaft (10).

## Claims

### Claim 1

A process for connecting functional elements to a shaft, comprising the following steps:
(a) forming elevations for receiving the functional elements, the elevations being worked out of the shaft by material removal, and
(b) welding the functional elements to the elevations on the shaft.

### Claim 2 (depends on 1)

The process according to claim 1, wherein the functional elements are welded to the elevations on the shaft with full attachment.

### Claim 3 (depends on 1)

The process according to claim 1, wherein the elevations on the shaft, the functional elements, or both the shaft and the functional elements are whetted with few notches during preparation for welding.

### Claim 4 (depends on 1)

The process according to claim 1, wherein the functional elements are welded to the elevations on the shaft with an X seam, a double-U seam, a double-Y seam or a double-V seam.

### Claim 5 (depends on 1)

The process according to claim 1, further comprising: after welding, checking the welded seams by one or more of ultrasound, X-rays, a dye penetration test, and another non-destructive examination process.

### Claim 6 (depends on 1)

The process according to claim 1, wherein the shaft, the functional elements, or both the shaft and the functional elements are manufactured from a duplex steel.

### Claim 7 (depends on 6)

The process according to claim 6, wherein the duplex steel is selected from the group consisting of duplex steel 1.4462, duplex steel 1.4362, and another high-strength weldable steel.

### Claim 8 (depends on 1)

The process according to claim 1, wherein the shaft and the functional elements are manufactured from the same material.

### Claim 9 (depends on 1)

The process according to claim 1, wherein a weld filler is used for welding the functional elements to the elevations on the shaft, the weld filler being identical to the material of the shaft, of the functional elements, or both the shaft and the functional elements.

### Claim 10 (depends on 1)

A shaft, produced by the process according to claim 1, the shaft having elevations on which functional elements are received by welding, wherein the elevations and the shaft are designed in one piece.

### Claim 11 (depends on 10)

The shaft according to claim 10, wherein the shaft, the functional elements, or both the shaft and the functional elements are manufactured from duplex steel.

### Claim 12 (depends on 11)

The shaft according to claim 11, wherein the duplex steel is selected from the group consisting of duplex steel 1.4462, duplex steel 1.4362, and another high-strength weldable steel.

### Claim 13 (depends on 10)

The shaft according to claim 10, wherein the shaft and the functional elements are manufactured from the same material.

### Claim 14 (depends on 10)

A comminutor comprising a shaft according to claim 10.

### Claim 15 (depends on 14)

The comminutor according to claim 14, the comminutor being a comminutor for poly(meth)acrylates.