发明名称 |
SYSTEM AND METHOD FOR ANNEALING OF AN ITEM, WHICH COMPRISES HEAT-SENSITIVE PARTS AND ANNEALED ITEM |
摘要 |
A method and a system for stress-relieving annealing one or more first parts of a workpiece, wherein a second part of the workpiece contains heat-sensitive parts. A cooling jacket is placed around the part of the workpiece surrounding heat-sensitive parts such that the part{s) to be annealed are located outside the cooling jacket. The first part(s) are then heated individually by induction up to the annealing temperature of the material in a first annealing zone in the system while simultaneously cooling the second part of the workpiece located in the cooling jacket. After annealing, the workpiece is cooled in a cooling zone, as annealing and cooling of the workpiece occurs under a protecting atmosphere. The annealed workpiece is, e.g., connection ends on a valve housing where the connection ends are shaped by plastic deformation after mounting valve seats, valve body etc. in the central part of the valve housing. |
申请公布号 |
EP3044341(A1) |
申请公布日期 |
2016.07.20 |
申请号 |
EP20140842223 |
申请日期 |
2014.09.08 |
申请人 |
BROEN A/S |
发明人 |
LILDHOLDT, MADS LINDEGAARD;ANDERSEN, LARS;JØRGENSEN, LARS LINAA;MADSEN, PEDER |
分类号 |
C21D1/26;C21D1/30;C21D1/42;C21D1/74;C21D9/00;C22F1/08;F16K5/08 |
主分类号 |
C21D1/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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