SU960229A1 - Cutting fluid for glass cutting blades - Google Patents

Description

(54) LUBRICATING-COOLING LIQUID FOR GLADES CUT

The invention relates to glass industry, in particular to coolant (coolant), used for rapid cooling of the tool on press-machines of screening strains and CRT cones operating at a temperature of about 1000 ° C.

Known lubricant-coolants used for tools, metals during cutting, turning, drilling, drilling, processing of metals at high pressures, which are sulforesol, water-oil emulsion, vegetable oil LIJ

Closest to the invention, in its technical essence, is a lubricant 6-oh 1-japping fluid 2j, which contains the following ingredients, wt%: Oleic acid 7

ten

Rosin

Caustic soda solution.

2.5-4

Ethanol

3 oil

Rest Water

However, the known liquid after refilling the press punching machines of the screens and cones for the CRT separates.

As a result, when dosing through a nozzle of a press automaton under pressure, a liquid of unstable composition, for example water, often gets on the knives. Due to the sharp cooling of the knives

10, the knives of a glass drop are knocked off, and this causes the automatic press to stop and the knives to be replaced. Knife replacement is very difficult in high temperature conditions.

15 in the press. :

In addition, after cutting the droplets and as a result of stamping, in the center of the CRT screen, there remains a trace of the soot from the burned out coolant in the place where the glass drops and

20 is removed only by grinding the inside of the screen, which: is not provided for in the technology of making flasks for CRT and is a laborious non-productive operation.

25

The purpose of the invention is to ensure the stability of a cutting fluid under high temperature conditions.

The goal is achieved by those.

30 that the cutting fluid for knives for cutting glass, containing mineral oil and ethyl alcohol, additionally contains silicon liquid and polyoxyethylene alkylphenol with the following components contained, ee.%:. Silicone fluid 1-2 polyoxyethylated alkylphenol6-7 ethyl alcohol mineral oil remaining liquid is prepared by simple mixing of the components, it is advisable to use industrial virgin oil (spun. As polyoxyethylated glkylpheno) OIIOP-10 commercial oil. The compositions presented in Table 1 are prepared. The physicochemical characteristics of the proposed coolant: o Viscosity at 50 ° C .. kinematic, cST 13-16 and conditional degrees 2.15-2 Pour point, n e above, C Mechanical impurities, not more,% Lack The indicated compositions of coolant 1-3 were used in comparison with the known C (4) of the following composition, wt.%: Oleic acid .1 Rosin10 Solution of caustic soda4 Ethyl alcohol4 Mineral oil3 WaterOstal Coolant test Do you press the screens with the following pressures of the feeder and the press? The mode in the feeder by zones: Temperature 61LK screen Cooling zone 980-1000 none Cooling zone 905-925 no Call for air conditioning 970-E90 rovan 980-1000 Bowl zone-990-1010 Bowl zone t1-a Press and Pita performance during t. / min. Weight drops for screen 9.6-9.7 kg. The pressing was carried out with the following imams of the press. Air pressure on pressing, MPa, 0.42 + 0.05 Air pressure on the mechanism of circumference, 6 +0.02 per drop, MPa Air pressure on glass rotation, 0.4 +0.01 MPa Compressed air pressure to cool the sphere and boron 4, -0.6 screen com pounds, - MPa Air pressure for cooling mat3 –4.5 RITS, hPa Temperature of softened water for cooling the punch, С at the inlet at the outlet Water pressure (water hardness should not exceed 0.25 mg . eq / l), mPa 0.54-0.58 Compressed pressure. air for cooling the angles poon0, 6 + 0.02 sone, mPa Air pressure for spraying coolant, mPa0.6 ± Q, 5 Comparative testing of coolant for cutting glass droplets carried out by automatic machines of the APRg-IM type for fitting screens and cones in production kinescopes. When testing (1-4), determine the quality of the received screens. The test results of the coolant are presented in table. 2. As can be seen, the performance of the proposed coolant is high, which ensures the existence of an effective high-throughput process, significantly by the percentage of product waste. Thus, the use of a dedicated coolant allows for uniform cooling and lubrication of the tool bite. Stable sozhidzhikosti, falling on the knives or cutting glass, eliminates the appearance of nagara on the screen in place cut the glass. In addition, the service life of the cutting tool will increase by 2-3 times and the cutting speed will be tolerated.

The use of polyoxyethylated alkylphenols (wetting agents SP-7 or OP-10 makes it possible to stabilize the composition and distribution of the constituent components in it, and improves the wettability of the instrument.

The use of silicone fluid makes it possible to create more

durable adsorption temperature-resistant film on the metal surface, facilitating friction.

The proposed composition of the coolant with high affinity with the metal (wettability), which is very important for cutting a viscous, low heat-proof glass mass with a high temperature of the order.

..Table 1

Silicone fluid

Polyoxyethylene alkylphenol

Ethyl alcohol Mineral oil

B3

6.06,57.0

8.05.5, 3.0

Else Else Else

table 2

Claims (1)

The claims Lubricant-cooling fluid for glass cutting knives, containing mineral oil and ethyl alcohol, characterized in that, in order to ensure the fluid is operable under high temperature conditions, it additionally contains an organosilicon fluid and polyoxyethylene alkyl phenol with the following components, weight .%: Silicone fluid 1-2 VNIIIPI Order 7145/30 Branch of PPP Patent, g Polyoxyethylated Alkyl Phenol Ethyl Alcohol 6-7 3-8 Mineral oil Rest