US3959031A
Expired / Lapsed
US
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Molten basic welding fluxes low in manganese and with low moisture sensitivity
Assignee: Wacker Chemie AG
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Filing: 1974-12-23
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Granted: 1976-05-25
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Expires: 1994-12-23
Abstract
Abstract Molten basic welding fluxes low in manganese and having low moisture sensitivity composed as follows:10 - 18 % by weight of SiO 2 15 - 25 % by weight of Al 2 O 3 0.1 - 2.0 % by weight of FeO and/or Fe 2 O 3 0 - 8 % by weight of TiO 2 0 - 3 % by weight of MnO1 - 8 % by weight of CaO0 - 4 % by weight of BaO16 - 33 % by weight of MgO0 - 2 % by weight of Na 2 O and/or K 2 O0 - 8 % by weight of ZrO 2 15 - 28 % by weight of CaF 2 0 - 1 % by weight of Cr 2 O 3 1 - 8 % by weight of CaO + BaO25 - 37 % by weight of CaO + BaO + MgO12 - 22 % by weight of SiO 2 + TiO 2 . The invention also relates to a process of making the fluxes. The welding fluxes according to the invention have considerably improved welding properties.
Inventors
- 👤 Anton More
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3602; B23K35/362
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
Molten basic welding fluxes low in manganese with low moisture sensitivity consisting essentially of the following components: 10 - 18% by weight of SiO.sub.2
15 - 25% by weight of Al.sub.2 O.sub.3
0.1 - 2.0% by weight of at least one member
of the group consisting of FeO and Fe.sub.2 O.sub.3
0 - 8% by weight of TiO.sub.2
0 - 3% by weight of MnO
1 - 8% by weight of CaO
0 - 4% by weight of BaO
16 - 33% by weight of MgO
0 - 2% by weight of at least one member
of the group consisting of Na.sub.2 O and K.sub.2 O
0 - 8% by weight of ZrO.sub.2
15 - 28% by weight of CaF.sub.2
0 - 1% by weight of Cr.sub.2 O.sub.3
1 - 8% by weight of CaO + BaO
25 - 37% by weight of CaO + BaO + MgO
12 - 22% by weight of SiO.sub.2 + TiO.sub.2.
Claim 2
Dependent Claim
157 words
Molten basic welding fluxes low in manganese with low moisture sensitivity consisting essentially of the following components: 10 - 18% by weight of SiO.sub.2
15 - 25% by weight of Al.sub.2 O.sub.3
0.1 - 2.0% by weight of at least one member
of the group consisting of FeO and Fe.sub.2 O.sub.3
0 - 8% by weight of TiO.sub.2
0 - 3% by weight of MnO
1 - 8% by weight of CaO
0 - 4% by weight of BaO
16 - 33% by weight of MgO
0 - 2% by weight of at least one member
of the group consisting of Na.sub.2 O and K.sub.2 O
0 - 8% by weight of ZrO.sub.2
15 - 28% by weight of CaF.sub.2
0 - 1% by weight of Cr.sub.2 O.sub.3
1 - 8% by weight of CaO + BaO
25 - 37% by weight of CaO + BaO + MgO
12 - 22% by weight of SiO.sub.2 + TiO.sub.2.
Claim 3
Dependent Claim
154 words
Molten basic welding fluxes according to claim 1, consisting essentially of the following components: 12 - 17% by weight of SiO.sub.2
16 - 23% by weight of Al.sub.2 O.sub.3
0.1 - 1.0% by weight of at least one member
of the group consisting of FeO and Fe.sub.2 O.sub.3
2 - 6% by weight of TiO.sub.2
0 - 2% by weight of MnO
1 - 6% by weight of CaO
0 - 1% by weight of BaO
18 - 31% by weight of MgO
17 - 26% by weight of CaF.sub.2
0 - 1% by weight of Cr.sub.2 O.sub.3
0.1 - 1.0% by weight of at least one member
of the group consisting of Na.sub.2 O and K.sub.2 O
2 - 6% by weight of ZrO.sub.2
1 - 6% by weight of CaO + BaO
26 - 35% by weight of CaO + BaO + MgO
12 - 22% by weight of SiO.sub.2 + TiO.sub.2.
Claim 4
Dependent Claim
20 words
Molten basic welding fluxes according to claim 1, containing in the composition 0.02 - 0.6% by weight of alkali chlorides.
Claim 5
Dependent Claim
21 words
Molten basic welding fluxes according to claim 1, containing in the composition 0.02 - 1.5% by weight of alkaline earth chlorides.
Claim 6
Dependent Claim
26 words
Molten basic welding fluxes according to claim 1, containing in the composition mixtures of alkali chlorides and alkaline earth chlorides of 0.02 - 0.6% by weight.
Claim 7
Dependent Claim
37 words
A process for making molten basic welding fluxes according to claim 1 wherein the component parts are heated to melting temperatures and contacted with a jet of water for pulverizing whereafter the granulate so formed is dried.
Claim 8
Dependent Claim
34 words
A process for making molten basic welding fluxes according to claim 1 wherein the component parts are heated to melting temperatures and atomized by means of a jet of compressed air or of vapor.
Claim 9
Dependent Claim
26 words
A process for making molten basic welding fluxes according to claim 1 wherein the component parts are heated to melting temperatures and atomized by rotating plates.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |