SU1684321A1 - Cutting fluid for honing of metals - Google Patents

Description

one

(21) 4747513/04

(22) 09 1089

(46) 15 1091 Bul

(71) Production Association Uralmash

(72) 0 N Ushanov

(53) 621 892 621 70163 (0888)

(56) USSR Copyright Certificate № 1171517 class С 10 М 173/02 1985

USSR Author's Certificate No. 1100299 class С 10 М 173/02, 1984 (54) LUBRICANT COOLING LIQUID FOR HONING METALS

(57) The invention relates to lubricants, in particular coolant

honing fluids for metal products from hardened steels with diamond tools. Purpose - to improve the quality of the treated surface. To do this, they use a composition that includes, in%, sodium nitrite 0 2 - 0.3, sodium tripolyphosphate 05-1, copper sulfate 0 0005 - 0 001, hexamethylene tetramine 0 15 - 0 25 polyoxyethylated primary fatty alcohols of the Xue-Cis fraction (with an ethylene oxide number of 8-10) 0.2-0.5, glycerin 6-10, monoethinolamine 0.05-015, water up to 100. In this In the case of a decrease in surface roughness from 0 52 to 0.3 microns 2 tabl

The invention relates to the machining of metals, in particular, to lubricating and cooling fluids (coolant lubricants) for honing metal parts made of hardened steels with diamond tools.

The aim of the invention is to improve the quality of the treated surface.

Sodium nitrite tripolyphosphate sodium copper sulfate, hexamethylenetetramine polyoxyethylated primary fatty alcohols of the Xyu-Cia fraction with a number of moles of ethylene oxide 8-10 (Sintanol DS 10) glycerol and monoethanolamine are used to prepare the coolant.

To prepare the coolant, the ingredients are mixed in tap water of any hardness at 30-50 ° C until they are completely dissolved.

Monoethanolamine improves detergent coolant, which contributes to a more complete removal of abrasive particles and chips

from the cutting zone In addition, the addition of monoethanolamine enhances the anti-corrosion and bactericidal properties of the coolant

Glycerin improves lubricating properties of coolant due to the formation in combination with other ingredients of thin chemically neutral films in the contact zone of the tool-part with increased strength and reducing the adhesion of the processed material to the tool. The coolant compositions are given in Table 1.

For comparison, a composition of a known prototype coolant was prepared (composition 8) May%

About 00

CJ

Yu

Sodium nitrite Tripolyphosphate sodium Copper sulphate Hexamethylenetetramine Sintanol DS-10 Water

025 075 00008 020 035 Else

The tests were carried out on a vertical-honing machine mod.ZN84, while processing the holes of the cylinder sleeves of the U8-6M drilling pumps. The material of the sleeves is steel 70, the diameter of the holes to be machined is 130-200 mm, the length is 600 mm. The surface of the holes hardened with HDC hardness of HRC 64. Processing was carried out with diamond honing stones ABH 150x16x6x3 DIA 250/200 MSZM 100 in the following modes:

Head rotation speed, m / min 40

The speed of the longitudinal movement of the head, m / min15 Specific pressure, kg / cm 10 During the tests, the roughness Ra, µm and the presence or absence of deep single scratches on the treated surfaces were monitored.

Roughness was measured by a profilometer, and the presence or absence of scratches was determined visually. To increase the reliability of the results, a control batch of parts from 10 pcs was processed with each of the compositions.

The test results are shown in table 2.

As can be seen from Table 2, the use of the proposed coolant formulations reduces the roughness of the treated surfaces from 0.52 to 0.3 microns and the likelihood of the formation of deep single scratches on them.

The liquid is clear, odorless, does not affect the color of the machine, does not cause irritation of the skin of hands (due to the presence of glycerin). The coolant is durable in operation, has high protective and anti-corrosion properties, is safe from the point of view of toxicology and dermatology.

Claims (1)

Claims Lubricating fluid for metal honing, containing water, sodium nitrite, sodium tripolyphosphate, copper sulfate, hexamethylenetetramine, and polyoxyethylated primary fatty alcohols of the Su-Cie fraction with 8–10 moles of ethylene oxide, so as to improve the quality of the treated surface, the liquid additionally contains monoethanolamine and glycerin in the following ratio of components, wt.%: Sodium Nitrite 0.2 - 0.3 Sodium tripolyphosphate 0.5-1.0 Copper sulphate0,0005 - 0,001 five 0 Hexamethylenetetramine Polyoxyethylated primary fatty alcohols of the Syu-CIB fraction with a molar quantity of ethylene oxide of 8-10 Glycerol Monoethanolamine Water 0.15-0.25 0.2 - 0.5 6.0- 10.0 0.05-0.15 The Rest Table 1 Table2