Lock rod and preparation method thereof
A lock rod and rod body technology, applied in the coating, metal material coating process, etc., can solve the problems of corrosion, easy wear of lock parts, etc., and achieve the effect of simple process, good strength and hardness, and good use value
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[0028] Correspondingly, an embodiment of the present invention provides a method for preparing a compression spring, comprising the following steps:
[0029] S01: Provide amorphous alloy raw materials,
[0030] S02: heating and melting the amorphous alloy raw material into a liquid phase metal, and then pouring it into a spring mold for cooling to obtain a spring body composed of the first zirconium-based amorphous alloy;
[0031] S03: coating the first metal coating on the surface of the spring body to obtain the compression spring;
[0032] Wherein, based on the atomic percentage of the first zirconium-based amorphous alloy as 100%, the first zirconium-based amorphous alloy includes the following atomic percentage components: Zr: 38-44%; Ti: 10- 15%; Ni: 8-12%; Cu: 9-14%; Be: 18-25%.
[0033] Traditional compression springs require heat treatment and surface treatment, which is cumbersome and has many defects. The preparation method of the compression spring provided by t...
Embodiment 1
[0066] The high vacuum die-casting method prepares the lock rod, comprising the following steps:
[0067] 1) Follow Zr first 53 al 16 co 26 PD 5 The atomic percentage is equipped with alloy raw materials, and then the raw materials are accurately placed in a horizontal or vertical high vacuum die-casting machine, and vacuumed so that the vacuum degree is less than 60Pa.
[0068] 2) Turn on the heating device, rely on induction heating to melt the raw materials into liquid metal, and use electromagnetic stirring to repeatedly mix the molten metal components. The heating and melting temperature is 1860°C (the melting points of the elements are 1852°C, 660°C, 1495°C, and 1552°C in sequence) .
[0069] 3) Preheat the mechanical lock rod mold to 200°C, then inject the molten metal into the mechanical lock rod mold cavity at a high speed of 10-30m / s under a high pressure of 15-80MPa, and set the filling speed.
[0070] 4) Fill with 10-10 3 The speed of ℃ / s is rapidly cooled, a...
Embodiment 2
[0072] The vacuum quenching spray-casting method prepares the locking bar, comprises the following steps:
[0073] 1) Follow Zr first 53 al 16 co 26 PD 5 The atomic percentage is equipped with alloy raw materials, and then the raw materials are accurately put into the electric arc melting furnace for repeated melting, so that it becomes a block master alloy with uniform composition.
[0074] 2) Cut the bulk master alloy into small pieces and put them in a quartz tube, place them in a rapid heating condensation, and vacuumize to less than 3×10 -3 Pa, the heating device, melts the bulk metal into molten metal by means of induction heating, and the heating temperature is 1100°C.
[0075] 3) Put the molten metal under high-purity air pressure for 5-10 2 Inject into the copper mold of the mechanical lock rod at the speed of m / s, at a rate of 10-10 3 The speed of ℃ / s is rapidly cooled, and after cooling, the copper mold is opened to obtain a zirconium-based amorphous alloy mec...
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