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Soft and hard roller continuous cyclic bending method and device

A soft and hard rolling and bending technology, applied in the field of preparation of micro-nano space structure, can solve the problems of difficult production control, poor effect, low efficiency, etc., and achieve the effect of smooth processing, ensuring process quality, and efficient and simple process

Inactive Publication Date: 2012-10-24
罗凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the production control is difficult, the efficiency is low, and the effect is poor

Method used

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  • Soft and hard roller continuous cyclic bending method and device
  • Soft and hard roller continuous cyclic bending method and device
  • Soft and hard roller continuous cyclic bending method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The hard rollers are made of carbon steel or other high-hardness alloy materials, and the surface is subjected to heat treatment such as quenching; the soft rollers are made of heat-resistant silicone rubber with a Shore hardness of 60A; AZ31 magnesium alloy materials are continuously passed through 10 groups of units at 130°C~350°C Two-way bending combined rolls composed of rolls, adjust the axial distance between the soft and hard rolls, so that the rolling deformation of the magnesium alloy material passing through the unit is 0.12, and the distance between the rolling shafts of each group of units is equal, after being straightened by the straightening roll, annealed at 300 ° C After recrystallization for 30 minutes, the surface grain size is refined, which can reach about 1 / 3~1 / 4, and the grain size is distributed in a gradient along the thickness direction, and the surface texture strength is also weakened compared with the neutral layer, which can be improved Mate...

Embodiment 2

[0028] In Example 1, if the material to be processed is a short material. Such as image 3 As shown, add the circulation belt to the mechanism, the circulation belt is made of Teflon or steel belt, and graphite or other additive materials are coated between them, and other processing parameters are the same as in Example 1, and the short material and the long material can be processed.

[0029] Replace AZ31 in examples 1 and 2 with gold Au, silver Ag, copper Cu, aluminum Al, iron Fe, magnesium Mg, nickel Ni, lead Pb or their respective alloys; hard rolling adopts various carbon steels, alloy materials, ceramics Material, hard plastic, stone and other hard materials, the soft roller adopts various heat-resistant silicone, fluorine rubber, perfluororubber and other heat-resistant rubber or other heat-resistant materials, by choosing a reasonable combination of soft and hard rollers; cycle The belt can be made of steel Fe, copper Cu and other metals or their alloy belts; it can ...

Embodiment 3

[0031] The pole plate of the storage battery is a porous material. The positive electrode material of the lead storage battery is 68mm long, 45mm wide, and 2.5mm thick, and the negative electrode material is 68mm long, 45mm wide, and 1.9mm thick. Or other soft materials, hardness 30~60A, diameter 60mm. The material is passed through a two-way bending combination roll composed of 20 sets of unit rolls. Adjust the roller clearance 0.2mm ~ 1.5mm. Wrap the processed positive electrode sample with ultra-fine glass fiber AGM material with a thickness of 1 mm, clamp the processed negative electrode material on both sides, pack it into a sandwich-structured battery sample, use three-stage charging and discharge, and record the discharge capacity. At the same time, make a group of comparison specimens with the same structure composed of unprocessed materials, and use the same charging and discharging method. Such as Figure 4 , 5 , the experiment proves that the capacity of the pro...

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Abstract

The invention relates to a soft and hard roller continuous cyclic bending method and a device. The device is mainly composed of soft rollers and hard rollers, the soft rollers and the hard rollers have different rigidities, strips and short materials are subjected to bending deformation by means of resultant forces of the soft rollers and the hard rollers, and the materials can be subjected to two-way cyclic bending by means of the pressing of multiple groups of the soft and hard rollers, so that processing efficiency of the materials is greatly improved, and usability of the processed materials is also greatly improved. The soft and hard roller continuous cyclic bending method can be used for preparing ultrafine nano-crystalline materials, porous materials, relevant microstructures and micro-nano space structures of material matrix surfaces and insides. The device is concise in structure, accurate in control, high in production efficiency, low in manufacturing cost, reliable in performance and applicable to industrial applications.

Description

technical field [0001] This is a soft and hard rolling bending method and equipment, which can be applied to the preparation of nano-ultrafine-grained materials, porous materials and various microstructure materials, and it is also suitable for the preparation of micro-nano spatial structures on the surface and inside of the material matrix . Background technique [0002] As a new type of material, nano-ultrafine-grained materials have attracted widespread attention in the industry due to their excellent performance. Substances in the form of nano-ultrafine crystals have properties different from conventional-sized substances in terms of mechanics, magnetism, optics, electricity, and heat. Such materials usually have excellent performance in the above aspects. Therefore, the production of nano-ultrafine-grained materials has become a new direction of industrial development. Among various preparation methods, the deep plastic processing method (SPD) can directly prepare mat...

Claims

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Application Information

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IPC IPC(8): B30B3/04B82Y30/00B82Y40/00C22F1/00C21D7/02
Inventor 不公告发明人
Owner 罗凯
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