CA1200741A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Method and apparatus for sectionwise heat treatment of component parts of ferrous materials
Assignee: Georg Fischer AG
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Filing: 1982-05-20
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Granted: 1986-02-18
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Expires: 2002-05-20
Abstract
Abstract A b s t r a c t By means of partial hardening of component part at the bainite stage, combinations of high-tensile skin layer properties with the basic properties of the cast material are made possible. The part processed this way has a low heat distortion and is easy to machine when hardened. Component sections are being heated up to austenitizing temperatures and subsequently quenched in a hot bath, in which the material is being transformed according to the time-temperature-transformation of the material. (Fig. 2)
Inventors
- 👤 Hauke Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-06 06:35
CPC Classifications
C; C21; C21D; C21D5/00; C21D1/00; C21D1/18; C21D1/19; C21D1/20; C21D1/62; C21D1/63
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
42 words
Method for partial heat treatment of com-ponents of ferrous metals, characterized in that the sections to be treated are being austenitized and subsequently left in a quenching medium until the desired transformation has taken place, so that a partial bainite structure results.
Claim 2
Dependent Claim
42 words
Method for partial heat treatment of com-ponents of ferrous metals, characterized in that the sections to be treated are being austenitized and subsequently left in a quenching medium until the desired transformation has taken place, so that a partial bainite structure results.
Claim 3
Dependent Claim
23 words
Method according to claim 1, characterized in that the sections to be treated are heated to a temperature of 850 to 1000 centigrades.
Claim 4
Dependent Claim
27 words
Method according to claim 1, characterized in that the quenching bath is a hot bath, the tempera-ture of which is being held at 180 to 450 centigrades.
Claim 5
Dependent Claim
17 words
Method according to claim 3, characterized in that as quenching medium a salt bath is being used.
Claim 6
Dependent Claim
15 words
Method according to claim 3, characterized in that as quenching medium oil is being used.
Claim 7
Dependent Claim
17 words
Method according to claim 3, characterized in that a metal bath is being used as quenching medium.
Claim 8
Dependent Claim
44 words
Apparatus for partial heat treatment of com-ponents of ferrous metals, wherein the components to be treated are austenitized and then quenched, and is characterized in that a quenching bath is placed below the heating place, into which bath the component falls immediately after heating.
Claim 9
Dependent Claim
44 words
Apparatus for partial heat treatment of com-ponents of ferrous metals, wherein the components to be treated are austenitized and then quenched, and is characterized in that a quenching bath is placed below the heating place, into which bath the component falls immediately after heating.
References Cited (Backward Citations)
No citation records indexed.
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