Burr-removing abrasive sand with ultrahigh strength and ultrahigh toughness and preparation method thereof

A super-tough, deburring technology, used in manufacturing tools, metal processing equipment, abrasives, etc., to solve problems such as brittleness, difficulty in sandblasting, and recycling

Inactive Publication Date: 2018-09-18
东莞市树林自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of sandblasting on the plastic surface, sandblasting needs a certain hardness, otherwise it will be difficult to work on the burrs on the plastic surface. At the same time, if the toughness of sandblasting is not enough, it will be fragile when impacting the plastic surface, and it is difficult to recycle sandblasting. , which increases the use of consumables. Therefore, in terms of the use effect and recovery rate of deburring sandblasting, a sandblasting machine with high strength and good toughness is required.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A preparation method of super-strength and super-toughness deburring sandblasting includes the following steps:

[0024] 1) Raw material preparation: 100 parts of B40L, 5-9 parts of Sarin resin 9020, 15-27 parts of Sarin resin 9320, 0.1-0.5 parts of MPK, 0.1-0.5 parts of AT-168, 0.05-0.25 parts of AT-1010;

[0025] 2) Raw material mixing reaction: mix B40L and Sarin resin 9320 evenly and put them into the twin-screw extruder for reaction, and add evenly mixed Sarin resin 9020, MPK, AT-168, AT-1010 in the middle of the twin-screw extruder to continue the reaction Extrude to the head;

[0026] 3) Wire drawing: the molten material extruded from the twin-screw extruder is drawn into sand-like sandblasting.

[0027] In one of the embodiments, the raw material formulation further includes 0.1-0.2 parts of toner.

[0028] In one of the embodiments, the particle size of the sandblasting is 0.2-2 mm.

[0029] In one of the embodiments, the temperature at the feeding end of the twin-screw ...

Embodiment 1

[0031] 1) Raw material preparation: 100 parts of B40L, 7 parts of Sarin resin 9020, 21 parts of Sarin resin 9320, 0.25 parts of MPK, 0.25 parts of AT-1680.25, 0.1 parts of AT-1010;

[0032] 2) Raw material mixing reaction: mix B40L and Sarin resin 9320 evenly and put them into the twin-screw extruder for reaction, and add evenly mixed Sarin resin 9020, MPK, AT-168, AT-1010 in the middle of the twin-screw extruder to continue the reaction To the extrusion of the die, the temperature at the feeding end of the twin screw extruder is 230℃, the temperature at the middle feeding point is 300℃, the temperature at the extrusion end of the die is 260℃, and the rotation speed of the twin screw extruder is 300 rpm. / Minute;

[0033] 3) Wire drawing molding: the molten material extruded from the twin-screw extruder is wire-drawn to obtain sand-like sandblasting with a particle size of 0.8 mm.

Embodiment 2

[0035] 1) Preparation of raw materials: 100 parts of B40L, 8 parts of Sarin resin 9020, 20 parts of Sarin resin 9320, 0.3 parts of MPK, 0.3 parts of AT-1680.3 parts, and 0.15 parts of AT-1010;

[0036] 2) Raw material mixing reaction: mix B40L and Sarin resin 9320 evenly and put them into the twin-screw extruder for reaction, and add evenly mixed Sarin resin 9020, MPK, AT-168, AT-1010 in the middle of the twin-screw extruder to continue the reaction To the extrusion of the die, the temperature at the feeding end of the twin screw extruder is 250℃, the temperature at the middle feeding point is 320℃, the temperature at the extrusion end of the die is 300℃, and the rotation speed of the twin screw extruder is 380 revolutions. / Minute;

[0037] 3) Wire drawing molding: the molten material extruded from the twin-screw extruder is drawn to obtain a sand-like sandblast with a particle size of 1.5 mm.

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Abstract

The invention discloses a burr-removing abrasive sand with ultrahigh strength and ultrahigh toughness and a production method thereof. B40L is modified by a double screw extruder; B40L has the characteristics of lightness and good toughness; Surlyn has excellent low temperature impact resistant toughness and an excellent performance on resisting wear and scratch; in the double screw extruder, B40Lreacts with Surlyn 9320 at first, during the reaction process, Surlyn 9020 is added, reactions are kept on, the combination between B40L and functional groups of Surlyn 9320 and Surlyn 9020 is promoted, the strength of B40L is improved; after Surlyn 9320 and Surlyn 9020 are co-used, the combination between B40L and Surlyn 9320/Surlyn 9020 is promoted, the using amount of modification additives isreduced, and the produced abrasive sand has the characteristics of ultrahigh strength and ultrahigh toughness. During the using process, the abrasive sand has a very good impact resistant performance, and can effectively process the surface of a rubber piece. Due to the toughness of the abrasive sand, the abrasive sand is resistant to breaking, and can be repeatedly used in cycle.

Description

Technical field [0001] The invention relates to the technical field of processing consumables, in particular to a super-strength super-toughness deburring sandblasting and a preparation method thereof. Background technique [0002] The precision of electronic products makes the requirements for the assembly of plastic parts of electronic products higher and higher. After the plastic parts of electronic products are injection molded, there are usually certain burrs on them, which do not meet the production requirements, so they need to be processed by a deburring machine. Remove the burrs. Now the best deburring effect is to use a frozen burr processor. Using this equipment, sandblasting is used to spray and polish the surface of the plastic part. Not only can the burr be removed, but the plastic surface can be mirrored without electroplating. This process relies on the impact of sandblasting on the surface of the plastic part. Since only physical action occurs, sandblasting is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L23/08C08L91/06C08K5/526C08K5/134B24C11/00
CPCB24C11/00C08L77/02C08L2205/025C08L2205/035C08L2205/05C08L23/0876C08L91/06C08K5/526C08K5/1345
Inventor 廖晖
Owner 东莞市树林自动化科技有限公司
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