Unlock instant, AI-driven research and patent intelligence for your innovation.

Quick solidification method for preparing non-crystalline thin band

A thin strip, amorphous technology, applied in the field of rapid solidification technology to prepare amorphous thin strips, can solve the problems of thin strips easily twisted together, limited strip length, short cooling time, etc. Quality, the effect of improving production efficiency

Inactive Publication Date: 2009-09-16
BEIHANG UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are following problems in above-mentioned single-roller method production thin strip technology: (1) the liquid of ejection can only contact 1 / 4th of cooling body peripheral circumference, and cooling time is short; (2) the length of stripped thin strip is limited , more than a certain length, the thin strips are easy to twist together, so it is not suitable for coiling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quick solidification method for preparing non-crystalline thin band
  • Quick solidification method for preparing non-crystalline thin band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, prepare Zr-Al-Ni amorphous alloy, raw material is Zr-Al-Ni alloy through smelting, molten pool is a quartz tube, the inner diameter of cooling body copper is 1m, the outer diameter is 1.5m, and the diameter of rotating shaft is 0.5m.

[0021] The specific preparation process is:

[0022] (1) Put the Zr-Al-Ni alloy into the quartz tube, and adjust the position of the quartz tube;

[0023] (2) Vacuumize to a vacuum degree of 10 -4 Pa;

[0024] (3) Fill with pure argon to -0.5Pa;

[0025] (4) Turn on the speed knob and adjust the speed of the copper ring and the rotating shaft to 3000rpm and 6000rpm respectively;

[0026] (5) Heating to completely melt the alloy and spraying with pure argon;

[0027] (6) Let the rotating shaft contact the inner wall of the cooling body quickly, stick the thin strip, and pull the rotating shaft out of the cooling body.

Embodiment 2

[0028] Embodiment 2, preparation CaO-Al 2 o 3 Amorphous thin strip, the raw material is CaO and Al mixed uniformly and sintered 2 o 3 Powder, molten pool is α-Al 2 o 3 The inner diameter of the crucible, the copper cooling body, is 1m, the outer diameter is 1.5m, and the diameter of the rotating shaft is 0.5m. Such as figure 2 Prepare CaO-Al as shown 2 o 3 The process of amorphous ribbon is:

[0029] (1) Mix evenly CaO-Al 2 o 3 Put the block into the alumina crucible and adjust the position of the crucible;

[0030] (2) adjust the speed of the copper ring and the rotating shaft to be 4000rpm and 8000rpm respectively;

[0031] (3) heating to make CaO-Al 2 o 3 After complete melting, spray with gas;

[0032] (4) Let the rotating shaft contact the inner wall of the cooling body quickly, stick the thin strip, and pull the rotating shaft out of the cooling body.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for rapid solidification to prepare amorphous thin strips. Firstly, the cooling body is designed as a drum ring, the molten pool is placed in the cooling body ring, and the molten liquid is vertically sprayed to the inner wall of the drum; then, an elastic rotating ring is installed in the cooling body ring Shaft, coated with a little mucus on the outer periphery of the shaft to stick to the initial thin tape, the shaft rotates at a certain speed, and the thin tape produced is wound on the shaft; according to the radius ratio of the inner ring and the rotating shaft, the relative speed of the two is adjusted, The spraying and winding are carried out at the same time; finally, the rotating shaft is drawn out of the cooling body, so that the thin strip can reach infinite length. The time that the sprayed liquid of the present invention stays on the cooling body can be extended to nearly one week according to the needs, and the inner diameter of the cooling body can be enlarged to greatly prolong the contact time between the spraying body and the cooling body; Compared with the technology, the intertwining of thin strips is avoided, the final finishing process is simplified, the production efficiency is improved, and infinitely long amorphous strips can be prepared, the production process is simple, and the efficiency is high.

Description

technical field [0001] The invention relates to a method for preparing amorphous thin strips by adopting rapid solidification technology. Background technique [0002] The rapid solidification method is one of the methods for preparing amorphous materials. Its principle is to rapidly cool liquid metals, nonmetals, alloys, etc., so as to freeze the liquid structure and obtain amorphous materials. There are many types of rapid solidification devices, among which the single-roll method is widely used in industrial production at present. Its main part is a molten pool and a rotating cooling body. Melt, and pressurize with inert gas to spray the molten material from the nozzle of the crucible onto the rotating cooling body, solidify into amorphous on the contact surface, and use inert gas to peel off the amorphous into thin strips. The width of the thin strip produced by this method can reach more than 100mm, and the length can reach more than 100m. But there are following prob...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/06
Inventor 章安玉门华张涛
Owner BEIHANG UNIV