Die stock and warm compaction process thereof

Abstract

The invention discloses a die stock which comprises a stock body used for accommodating and fixing screw dies, wherein symmetrical outward extending handlebars are arranged on the stock body. According to weight percentage, the stock body is composed of components as follows: 1-4% of Cu, 0.6-0.9% of C, 0.1-0.3% of S, other impurities occupying smaller than or equal to 2%, and the balance Fe. The invention further discloses a warm compaction process of the die stock. The warm compaction process is characterized in that in the sintering procedure, a heating part is divided into three heating zones in a gradual warming heating mode, and therefore volatilizing of super lubricants added in a material mixing procedure is benefited, cracking and surface bulging of laminates in the forging process are effectively avoided, the quality of warm compaction products is improved, and inside-to-outside hardness and use intensity of the warm compaction products are improved due to the gradual warming mode.

Description

technical field [0001] The invention relates to the technical field of hand tools, in particular to a hand-rotated tool die holder for clamping dies for processing external threads and a warm-pressing process for producing the die holder. Background technique [0002] The die holder is a manual rotary tool used to hold the die and process the external thread. The general structure of the thread processing tool includes a frame body for clamping the die, and a handle rod connected to both ends of the frame body and used to rotate to drive the frame body to rotate. For the traditional die frame, the material of the handle rod is generally 45 steel, and the frame body is generally made of zinc alloy material. Zinc alloy is an alloy composed of zinc as the base and other elements. Often added alloying elements are aluminum, copper, magnesium, cadmium, lead, titanium and other low-temperature zinc alloys. Zinc alloy has low melting point, good fluidity, easy fusion welding, bra...

AI Technical Summary

Problems solved by technology

[0003] The existing manufacturing method of the die frame body is mainly made of zinc alloy and high-carbon steel, and the forming process of the zinc alloy is mainly die-casting, but the disadvantages of this preparation method are: low yield, long production cycle, and low production efficiency , The degree of mechanization is not high, the energy consumption is large, and the density and strength of the die-casting frame are low, resulting in unstable product quality, low creep strength, and dimensional changes caused by natural aging.

[0004] The forming process of high-carbon steel is mainly forging. Although high-carbon steel has high strength and hardness, high elastic limit and fatigue limit (especially notch fatigue limit), the cutting performance is acceptable, which meets the requirements of the die frame body. , but the disadvantages of this preparation method are: long production cycle, high energy consumption, and the main problem is that the production cost is high. The price is the main consideration for the material used in the die frame body, which not only affects the profit of the enterprise, but also is not conducive to energy saving. Strategic Thoughts on Emission Reduction and Sustainable Development