	US 12,110,565 B2
	Procedure for hardening slides of a perforating press and the slides obtained
Luc De Sutter, Roeselare (BE)
Assigned to Soenen Technology NV, Roeselare (BE)
Filed by Soenen Technology NV, Roeselare (BE)
Filed on Dec. 5, 2022, as Appl. No. 18/061,782.
Claims priority of application No. 2021/5943 (BE), filed on Dec. 6, 2021.
Prior Publication US 2023/0175089 A1, Jun. 8, 2023
Int. Cl. C21D 9/00 (2006.01); B23F 1/06 (2006.01); C21D 1/18 (2006.01); C21D 1/42 (2006.01); C21D 1/773 (2006.01); C21D 8/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01)

CPC C21D 9/0068 (2013.01) [B23F 1/06 (2013.01); C21D 1/18 (2013.01); C21D 1/42 (2013.01); C21D 1/773 (2013.01); C21D 8/005 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C21D 2211/001 (2013.01)]

13 Claims

1. A method of hardening slides of a perforating press comprising:

providing a steel beam;

hardening of the steel beam in a vacuum furnace;

tempering the steel beam twice;

first straightening of the steel beam at a temperature of 20° C.±10° C.;

milling of an at least partially continuous sawtooth profile, along a longitudinal direction of the steel beam, on a first side of the steel beam;

wherein, after milling the at least partially continuous sawtooth profile on the first side of the steel beam, a second side of the steel beam, lying opposite the first side, is hardened by means of induction currents, after which the steel beam is again tempered twice and after which the steel beam is straightened a second time at a temperature of 20° C.±10° C.