FIELD: soldering materials. SUBSTANCE: metal-crystalline solder consisting of low-melting component and refractory component that contains nickel and titanium. Low-melting component has alloy aluminium-silicon-magnesium and refractory component has additionally bismuth at the following ratio of components, weight %: low-melting component 50-90, refractory component 10-50. Refractory component has the following components, weight %: bismuth 1-10; nickel 20-45, and titanium - the rest. EFFECT: improved quality of solder.
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