Cold-proof double swing and processing process thereof

[0036] This embodiment provides a kind of cold-resistant swing for two people, including a load-bearing beam and two single-person swings, the single-person swing is suspended on the load-bearing beam, and the load-bearing beam includes the following components in terms of mass percentage:

[0037] Cr: 0.01%, Al: 0.7%, Si: 1%, O: 0.05%, C: 0.11%, Si: 1%, Co: 0.2%, P: 0.0025%, S: 0.002%, Mn: 0.1%, Ti: 0.4%, V: 0.002%, Cu: 0.1%, Nb: 0.001%, B: 0.04-0.05%, Mo: 0.01%, compound rare earth: 0.2%, the rest is Fe and unavoidable impurities, the above groups The sum of the points is 100%;

[0038] The compound rare earth includes the following components in terms of mass percentage: cerium: 10%, bait: 3%, terbium: 1%, lutetium: 5%, praseodymium: 12%, and the balance is lanthanide elements. The sum of the above components is 100%.

[0039] The above-mentioned load-bearing beams are wrapped with a glue layer, and the glue layer includes the following components by mass percentage:

[004

[0057] This embodiment provides a kind of cold-resistant swing for two people, including a load-bearing beam and two single-person swings, the single-person swing is suspended on the load-bearing beam, and the load-bearing beam includes the following components in terms of mass percentage:

[0058] Cr: 0.02%, Al: 0.9%, Si: 3%, O: 0.08%, C: 0.12%, Si: 3%, Co: 0.4%, P: 0.0030%, S: 0.003%, Mn: 0.3%, Ti: 0.5%, V: 0.004%, Cu: 0.3%, Nb: 0.003%, B: 0.04-0.05%, Mo: 0.02%, compound rare earth: 0.4%, the rest is Fe and unavoidable impurities, the above groups The sum of the points is 100%;

[0059] The composite rare earth includes the following components in terms of mass percentage: cerium: 12%, bait: 5%, terbium: 3%, lutetium: 7%, praseodymium: 15%, and the balance is lanthanide elements. The sum of the above components is 100%.

[0060] The above-mentioned load-bearing beams are wrapped with a glue layer, and the glue layer includes the following components by mass percentage:

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