SU1313679A2 - Method for improving performance characteristics of abrasive tool - Google Patents

Abstract

The invention relates to the manufacture of abrasive tools. in particular, to methods of impregnating the tool with an impregnator. The aim of the invention is to improve the performance and quality of grinding, as well as lowering the temperature of grinding. The goal is achieved by reducing the coefficient of friction between the abrasive wheel and the cutting material and the material being processed, and improving chip formation, for which the tool is pre-impregnated in an aqueous solution of potassium ferrose and potassium permanganate in the following ratio of ingredients, wt.%: Potassium synergistic 3-10; parmanganate potassium 2-4j water the rest, after which the instrument is dried and impregnated again in a 3-5% solution of stearin in acetone. 1 tab. i (L (X) 00 O5 with MS)

Description

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The invention relates to the production of diamond abrasive tools, in particular to methods of impregnating a tool with an impregnator.

The purpose of the invention is to increase the productivity and quality of grinding, as well as to reduce the temperature in the cutting zone.

According to the proposed method, before being impregnated in a solution of stearin in acetone, the abrasive tool is pre-impregnated in an aqueous solution of potassium ferric synergistic and potassium permanganate in the following ratio of ingredients, wt.%: - Potassium ferrocyanide 3-10

Potassium permanganate 2-4 Water Else

Example 1. Potassium permanganate (1 wt.%) And potassium iron synergistic (1 wt.%) Were dissolved in water at room temperature. The circles were impregnated with the prepared solution, dried, then soaked in 5% stearin in acetone and dried again.

Example 2. Preparing a solution containing, wt.% Potassium permanganate 2; potassium ferrocyanide 3; water the rest. The resulting solution was soaked in circles, dried them, then soaked in 5% solution of stearin in acetone and dried again.

PRI me R 3. Prepared a solution containing, in wt.%: Potassium permanganate 3i potassium ferrocyanide 6; water the rest. The solution was soaked in circles, dried them, then soaked with 5% solution of stearin in acetone and dried again.

PRI me R 4. Prepared a solution containing, in wt.%: Potassium permanganate 4; potassium ferro-synergistic 10j water the rest. The solution was soaked in circles, dried, then soaked in a 5% solution of stearin in acetone and dried again.

PRI me R 5. Prepared a solution containing, in wt.%: Potassium permanganate 5i potassium ferrocyanide 15; water the rest. The solution was soaked in circles, dried, then soaked in a 5% solution of stearin in acetone and dried again.

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PRI me R 6. Prepared a 5% solution of stearin in acetone, the resulting solution was impregnated circles (prototype) ..

The tests of the impregnated wheels were carried out on the RPO-200M1 (CPP) flat-plate machine under the following modes: speed of the circle 18 m / s; speed-details Vtt, 4 m / min, radial feed t 0.01 mm / two-way. Processed material - cemented steel 12Х2Н4АШ ().

Grinding performance for the maximum grinding depth without burns (t mm / two-way). The grinding temperature was measured using a semi-artificial thermocouple. The impregnation efficiency was evaluated by the value of the temperature ratio at

grinding the impregnated wheel to the grinding temperature with an impregnated wheel. Additionally, the durability of the circles was determined, which was estimated by the volume of the Metal (Q mm) ground to the appearance of a burnout.

The results of the comparative tests are shown in the table.

As can be seen from the table, the best results are provided by the circles treated according to Example 3. Compared with the well-known method, increasing the operational properties of the proposed method reduces the grinding temperature to 1.33 times, improves the processing performance up to 2.55 times and 1.9 times the durability tool.

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Claims (1)

Invention Formula The method of increasing the operational properties of the abrasive tool auth.St. No. 865646, which is based on the fact that, in order to improve the performance and quality of grinding, the abrasive tool is pre-impregnated in an aqueous solution of potassium-ferro-synergistic and potassium permanganate, with these ingredients taken in the following ratio, wt.%: 3-10 Potassium permanganate 2-4 Water Else recipe for example 1 2 3 4 5 6 0.04 0.07 0.14 0.18 0.15 0.06 0.07 Editor- L. Pchelinska Compiled by L.Sergeeva Tehred L.0 Ledger Proofreader S. Shekmar Order 2168/16 Circulation 716 Subscription VNIIPI USSR State Committee on the Cases of Inventions and Discoveries 4/5, Moscow, Zh-35, Raushsk nab. 113035 Production and printing company, Uzhgorod, st. Project, 4 1.00 2.6 3.85 5.00 4.15 2.5 2.60