High-strength composite solder

Abstract

The invention relates to high-strength composite solder. Deposited metal formed by the solder comprises, by mass percentage, 0.04%-0.08% of carbon, 0.30%-0.50% of silicon, 4%-8% of manganese, 10%-18%of nickel, 4%-8% of chromium, 2%-4% of titanium, 0.4%-0.8% of molybdenum, 60%-70% of iron and the balance impurities, specifically, the weight ratio of the nickel to the chromium is 2-3:1. The high-strength composite solder has the high strength and the high mechanical stretch performance, is stable in performance under the high temperature condition, low in cost and few in electric arc splash, and easily achieves slag removal.

Description

technical field

[0001] The invention relates to the technical field of metal materials, in particular to a high-strength composite solder. Background technique

[0002] The hydraulic cylinder is the actuator in the hydraulic transmission system. It is an energy conversion device that converts hydraulic energy into mechanical energy. The hydraulic cylinder is a mechanical device that realizes reciprocating motion. There are three types of hydraulic cylinders: piston cylinder, plunger cylinder, and swing cylinder. The piston cylinder and plunger cylinder realize reciprocating linear motion, output speed and thrust, and the swing cylinder realizes reciprocating swing, outputting angular velocity (speed) and torque.

[0003] The working pressure of the hydraulic cylinder is high, the internal temperature is high during long-term operation, and the sealing requirements are very strict, so the welding quality requirements are very high during production and maintenance. At presen...