RU1775422C - Organic binder for manufacturing abrasive tool - Google Patents

Abstract

Usage: production of abrasive tools. The inventive organic bond for the manufacture of abrasive tools contains,%: branched butadiene rubber with a content of 1,2 units of at least 70 wt.% - 38,992-40,02, carboxyl butadiene rubber - 9,451-10,055, sulfur - 23,011-23,849 , 2-mercaptobenzthiazole - 0.458-0.504, tetramethylthiuram disulfide - 0.102-0.138, zinc white - 3.170-3.256, cryolite-22.95-24.044. A mixture of the components, except the csucci, is mixed for 45 minutes in a rotating drum for 45 minutes. The rubbers SKDSR and SKD-1 A are dissolved on the rollers. They are introduced into the rubber for 26 minutes. Get the mixture. Again dissolve on the rollers. An abrasive bond is obtained. Cutting wheels are formed. Material characteristics: grinding coefficient 0.79-0.99, hardness according to GOST 25061 - 37-39. working speed - 80 m / s. 2 tab.

Description

The invention relates to the production of an abrasive tool for cutting and cutting steel, namely, organic bonding for the manufacture of an abrasive tool.

Known organic bond (volcanic) for the manufacture of cutting wheels, which contains the following components, wt.%:

Rubber SKB-bbr62.072

Sulfur27,933

2-Mercaptobenzthiazole 0.621

Tituram D0.062

Actinap3.104

Zinc white

Binder phenolic powder

A disadvantage of the known bond is the low wear resistance of the tool.

The purpose of the invention is to increase the tool wear resistance, which is characterized by a grinding coefficient.

The goal is achieved in that the organic binder for the manufacture of abrasive tools, including a binder - unsaturated rubber, sulfur, 2-mercaptobenzothiazole, tetramethylthiuramdisulfide, zinc white, contains as a binder branched butadiene rubber with a content of at least 70 units wt.% (SKD-SR) and carboxylate butadiene rubber (SKD-1 A) and additionally cryolite in the following ratio of components, wt.%: Branched butadiene rubber with a content of 1,2 units of at least 70 wt.%: 38,992-40.02

VI X |

8

Yu Yu

9.451-10.055 23.011-23.849 0.458-0.504

0.102-0.138

3,170-3,256

22.95-24.044

Carboxylate

butadiene rubber

Sulfur

2-mercaptobenzthiazole

Tetramethylthiuram disulfide

Zinc White

Cryolite

A mixture of rubber-free components is mixed in a rotary drum for 45 minutes.

Then, on rolls on which rubber SKDMR and SKD-1 A are preliminarily dissolved, the weighed mixture is introduced into rubbers. Ingredients are introduced within 26 minutes with repeated biting for good mixing.

The resulting bond is removed and re-circulated on the rolls to form an abrasive mixture, from which cutting circles are then formed.

The invention is illustrated by the examples shown in table 1.

Rubber SKDSR (TU 38.103284-85) is used as a binder component.

Rubber SKD-1 A (TU 38.103352-83) is used as a bonding reinforcing component.

Sulfur (GOST 127-76) - vulcanization agent,

2-Mercaptobenzthiazole (GOOT 739-74) to tetramethylthiuram disulfide thiuram D (GOST 740-76) - vulcanization accelerators.

Zinc white (GOST 202-84) is a filler that affects technological properties,

Cryolite (GOST 10561-80) is a filler used to create thermal conductivity and improve cutting properties.

The results of comparative tests of cutting wheels made from the proposed and known ties are shown in Table 2.

Claims (1)

The claims An organic binder for the manufacture of an abrasive tool, including a binder - unsaturated rubber, sulfur, 2-mercaptobenzthiazol, tetramethylthiuram disulfide, zinc white, characterized in that, in order to increase the wear resistance of the tool, the binder contains - branched butadiene rubber with a content of 1,2 units of at least 70 wt.% and carboxylated butadiene rubber and additionally cryolite in the following ratio of components, wt.%: Ramified butadiene rubber with content 1,2 links at least 70 wt.% Carboxylate butadiene rubber Sulfur 2-mercaptobenzthiazole Tetra M Ethyl Thiuram Disulfide Zinc White Cryolite 38.992-40.02 9.451-10.055 23.011-23.849 0.458-0.504 0.102-0.138 3.170-3.256 22.95-24.044 Rubber SK1SR 0,02039,50638,992 Rubber SKD-1 A9,519,87710,055 Rubber SKB-brbr --- 62.072 Sulfur. 23.84923, h5723.011 27.933 2-Mercaptobenzthiazole 0, h580, h9ch0.50 0.621 Tiuram D0.1020,1230,138 0,062 Aktipan --- 3.10 zinc white 3.1703.0863.256 3.10 Phenolic Binder powder --- 3.10 Cryolite 22.95023, h572k, Well-known GOST 300x3x32 YA) OH ST B 21963-82, em. 1, amend. 250 Proposed 1,400x3x32 dA iOH CT B80.0.79 Famous GOST 300x3x32 YA ONSTV500,5 Proposed 2 40H CT B800.93 Famous GOST 300x3x32 YA UN ST V500.5 21963-82, amend. 1, em. 2 Proposed 3 ON ONST800,92 T h b l i c a 2 27t29