SU1344814A1 - Solution for cleaning surface of metal articles - Google Patents

Abstract

The invention relates to the cleaning of the metal surface of the cutting tool before coating can be used in metalworking. The purpose of the invention is to increase tool life. This is achieved by treating products, for example, drills or plates, with a solution containing, in wt.%: 0.1–50 mixture of cryptand and crown ether, the rest is organic solvent. Dibenzo-18-crown dibenzo-18-crown is taken as the crown 6 or diazo-18-crown-6, or 12-crown-6, and as an organic solvent - gasoline or acetone, or trichlorethylene. Moreover, the ratio in a mixture of crown ether ikriptand, May.%: 1-2 and 99-98 or 99-98 and 1-2. Using the described solution improves the durability of the cutting tool by increasing the quality of surface cleaning by 1.5-2. , 8 times. Table I with fS (L with 4 00

Description

The invention relates to the cleaning of the metal surface of the cutting tool before coating, can be used in metalworking

The purpose of the invention is to increase tool life.

The solution is prepared by simple mechanical mixing of these components until the binary mixture is completely dissolved in an organic solvent.

Gasoline, acetone, and trichloroethyl were taken as the organic solvent. Dibenzo-18-crown-6, diazo-18-crown-6, 18-crown-b, were chosen as the crown ether. 12-crown-6, as a cryptand-cryptand 2.2.2, a cryptand 4,4,4 ,.

The structural formulas of the macromolecules of the ionophores used are complex and, in many cases, r is not fully defined, their formulas are given below in general form;

-0 0Dibenzo-18-crown 6 Cryptand 2.2,

Qualitative and quantitative level of the solution, including various variations of the components mentioned above, is presented in the table.

Instruments (drills from P6M steel and cutting plates from solid T14K8 sputter and tungsten-free hard metal alloy KNT16) were loaded into a bath with the proposed solution and processed therein before removing the oxide strip, and then removed and dried until complete evaporation of the solvent

A titanium nitride coating is applied to a cleaned tool with a known method of ionic bombardment of a substance (KIV), and then subjected to stochastic tests when machining steel 45 at a rate of 1x: For drills:

Cutting speed, m / s 45 Feed, mm / rev 0.18 Drilling depth, mm15 For cutting inserts:

five

0

five

0

five

Cutting speed,

m / min160

Giving, mm / about 0,3

Depth of Cut, mm 1

The test results are presented in the table.

An analysis of the results of the stochastic testing of a coated tool leads to the following conclusions.

When the content of the mixture is less than 0.01%, its effect on the quality of surface cleaning is not felt. When the content of the mixture is more than 50%, the quality of cleaning does not improve, probably due to a decrease in the solubility of the mixture in an organic solvent.

The proposed solution not only degreases the surface of the tool base, but also removes non-oxide films from the instrument without disturbing the tool geometry. Combined use of a crown ether and cryptand allows removing oxide films from any tool material: high-speed steel, hard alloy, tungsten-free solid. alloys whose basis is respectively iron, cobalt, nickel. In addition, the combined use of crown ether and cryptand improves the quality of surface treatment and, consequently, increases tool life by 1.5-2.8 times.

Invention Formula

Cryptand Crown ether

A solution for cleaning the surface of metal products, preferably a cutting tool, containing an organic solvent, characterized in that, in order to increase tool life, it additionally contains a mixture of cryptand and crown ether in the following ratio, wt.%: Cryptand mixture

and crown ether0.01-50

Organic

solventOther

wherein the mixture contains components in the following ratios, wt.%: Cryptand1 - 2

Crown Ether98 - 99

or

98 - 99 1-2

f

about

"

about ,

m X a

P "

§one

sh w

yo

°

o- -. (- 1

oo - - - about o

oo

S

about VC

n i

Claims (1)

Claim Surface Cleaning Solution 40 metal products, mainly cutting tools containing an organic solvent, characterized in that, in order to increase tool life, he 45 additionally contains a mixture of cryptand and crown ether in the following ratio of components, wt.%: A mixture of cryptand and crown ether 0.01-50 50 Organic solvent The rest of this mixture contains components in the following proportions, wt.%: Cryptand i - 2 55 crown ether 98 - 99 or Cryptand 98 - 99 Crown ether 1-2 05 <m cm "s; I about c Oh cm w <r ate Oh Oh Uh um 0 - \ C <t ιηo eat cn <t d X о. f cn o42 05 x £> Ό <? hh O'h gm 05 o o o o O'o> | L σ '• J Ί σ 'm ι / 5 O o o o o o o about 05 05 05 05 O 'O' 05 O '05 O' About eating I X>, d. I s CM see um ABOUT' 1 oo I about X f >> D O. X 05 05 O 'about o 05 about O '05 O '05 EP SP Ό SL ABOUT- OS OO W 05 05 05 05 X x L X f W p, <0 IX and 05 05 O O 05 O '05 P ”w O · 05 · <T 05 05 O '' O '05 05 Oh Oh О 'Г' · 'о SP SP ABOUT'·* O'O ' O'O ' O'O ' 5 1344814 t I + cryptand gm.h Table continuation