CN1321734A - Anti-rusting antibiotic water base cutting fluid and its preparation method - Google Patents

Abstract

The rust-preventing antibacterial water base cutting compound for machining metal is made by adding aqueous solution of sodium nitrite and sodium benzoate to the reactants of mechanical oil, oleic acid, olefine butanedioic acid, boric acid, alcohol amine, surfactant and thiophosphate. Its rust-preventing time is above 192 hr, PB value is greater than or equal to 76 kg, it is used for cutting, the resistance can be reduced by 1/3, and its power consumption can be reduced by 20%.

Description

Anti-rusting antibiotic water base cutting fluid and preparation method thereof

The invention belongs to metal cutting processing technique field, particularly a kind of anti-rusting antibiotic water base cutting fluid and preparation method thereof.

Water-base cutting fluid before the present invention divides oil-in-water type and synthesis type two big classes.Oil-in-water type contains Chuck Steak, and good lubrication is arranged, but perishable, and work-ing life is short, lathe is polluted big; Synthesis type is oil-containing not, and good cooling and cleaning are arranged, but poor lubricity causes that easily machine tool guideway and slipping plane move difficulty (being commonly called as " later stage is stuck ").

The purpose of this invention is to provide a kind of anti-rusting antibiotic water base cutting fluid and preparation method thereof, this cutting fluid oleaginousness is few, and is not perishable, long service life, and have good lubricity, good cooling and cleaning are arranged.

The present invention is achieved in that

A kind of anti-rusting antibiotic water base cutting fluid, its component have the weight percent (following percentage number average is represented weight percent) as table 1:

Table 1

Component	Content
		Machinery oil	5.0～10.0％
Alkenyl succinic acid	0.2～1.0％
		Oleic acid	5.0～15.0％
Tensio-active agent	8.0～24.0％
		Boric acid	0.3～2.0％
Mix hydramine	2.0～7.0％
		Thiophosphatephosphorothioate	3.0～6.0％
Defoamer	0.1～1.0％
		Sodium Nitrite	1.0～4.5％
Sodium Benzoate	0.01～0.1％
		Water	29.40～75.39％

A kind of preparation method of above-mentioned anti-rusting antibiotic water base cutting fluid has following preparation feedback step:

1. get machinery oil, oleic acid is heated to 80～90 ℃, adds alkenyl succinic acid, tensio-active agent stirred 1 hour.

2. be warmed up to 90～100 ℃, add boric acid while stirring and mix hydramine, stirred 20 minutes.

3. add thiophosphatephosphorothioate, stirred 20 minutes, cool to 50 ℃, add defoamer and stir evenly.

4. with above mixture being poured in 50 ℃ of hot water that are dissolved with Sodium Nitrite, Sodium Benzoate slowly, the limit bevelling stirs, and makes it to be emulsified into this product concentrated solution; During use, dash with tap water and to be made into translucent solution.

Experimental data sees Table 2:

Table 2

Project			GB6144～85IV class	The present invention	Reference standard
						Concentrated solution	Outward appearance		Even liquid	Brown even liquid	GB6144～ 85
Stability in storage		Not stratified	Not stratified
				Diluent 5%	PH value		8～10	8
Defoaming ml/10min		≤2.0	≤1.0
					Corrosion test is soaked for 55 ± 2 ℃ entirely	One-level grey cast iron 24h	The A level	The A level
Red copper 8h	The A level	The A level
			LY～12 aluminium 8h			The A level	The A level
35 ± 2 ℃ of RH95% of rust prevention test one-level grey cast iron	Monolithic 48h	The A level						The A level
			Lamination 8h		The A level	The A level
	Last non seizure load	PB(kg)					≥70	≥76	GB3142～ 82
d(mm)					0.41
		15～35 ℃ of emulsion stabilitys, 24h, ml				Soap	0.5	Soap is arranged slightly		SY1374～ 77
Oil	Do not have		Do not have
					Lathe is painted adaptability: to polyester, chlorinated polyvinyl chloride, nitro alkyd paint etc., 21 days		Nondiscoloration	Nondiscoloration	JB1470～ 81

Advantage of the present invention is:

1. every performance all meets or exceeds the relevant index of GB6144～85 IV classes and SY1374～77, belong to " most type " cutting fluid, be applicable to the processing such as cutting, grinding of multiple metal (iron, copper, aluminium), also be applicable to extreme pressure cutting or precision cutting processing simultaneously.

The antirust time of monolithic be above standard reach＞192 hours stainless.Factory reflection workpiece in summer place 10 days stainless, can save rust prevention during manufacture and handle.

3. germ resistance is fabulous, and concentrated solution can be deposited and never degenerate in 2 years, and diluent is in the actual use of factory 1 year not smelly (having consumption suitably to replenish in the use).

4. high comprehensive performances such as cooling, extreme pressure, lubricated, cleaning, froth breaking, PB value 〉=76 kilogram, available tap water is prepared working fluid.

Since the life-span long, several parts of usefulness in a top, also liquid man-hour is changed in saving.Be used for broaching and can make resistance reduce 1/3, the worker consumes and reduces by 20%, is used to grind bent axle, 7～8 excessively heated axles not, and grinding tool consumption obviously reduces.Saving of labor, energy-conservation, material-saving are suitable for High-speed machining, save cutter.

6. not chloride and phenols Toxic in the prescription, discharging of waste liquid seldom, compliance with environmental protection requirements, no special odor does not influence operator's health.

Below in conjunction with embodiment the present invention is further described, but not as a limitation of the invention.

Example formulations sees Table 3.

Table 3

Sequence number	Component	Content
				Example I	Example II
		??1	The 13# machinery oil			??7.0％	??6.0％
??2	Alkenyl succinic acid			??0.3％	??0.3％
		??3	Oleic acid			??8.3％	??9.3％
??4	Polyoxyethylene glycol (400)			??5.0％	??3.0％
		??5	??Oπ15			??14.0％	??12.0％
??6	??T80			??0.0％	??4.0％
		??7	Boric acid			??0.5％	??0.5％
??8	Diethanolamine			??1.3％	??1.0％
		??9	Trolamine			??2.1％	??2.4％
??10	Diethylenetriamine			??0.1％	??0.1％
		??11	Thiophosphoric acid zinc			??4.0％	??3.5％
??12	Methyl-silicone oil			??0.2％
		??13	Atactic Polypropelene				??0.1％
??14	Sodium Nitrite			??4.0％	??4.0％
		??15	Sodium Benzoate			??0.1％	??0.1％
??16	Water			??53.1％	??53.7％

The embodiment preparation method:

By aforementioned preparation feedback step, reinforced according to table 3 numeric order, wherein 7,8,9,10 is independent Hybrid Heating to 100 ℃, stirs adding again after 10 minutes.The concentrated solution that is made into is diluted to 5% working fluid with tap water, and its The performance test results sees Table 4.

Table 4

Project			Example I	Example II	Reference standard
						The concentrated solution stability in storage			No layering	No layering	GB6144～85
Diluent 5%	PH value		8	8
					Defoaming ml/10min		≤1	≤1
	Corrosion test is soaked for 55 ± 2 ℃ entirely	One-level grey cast iron 24h	The A level	The A level
					Red copper 8h	The A level	The A level
		LY～12 aluminium 8h	The A level	The A level
					35 ± 2 ℃ of RH95% of rust prevention test one-level grey cast iron	Monolithic 48h	The A level	The A level
	Lamination 8h	The A level	The A level
				Last non seizure load		PB(kg)	≥76	≥70	GB3142～82
	d(mm)	0.41	0.40
					15～35 ℃ of emulsion stabilitys, 24h, ml	Soap	Soap is arranged slightly	Do not have		SY1374～77
	Oil	Do not have	Do not have
				Lathe is painted adaptability: to polyester, chlorinated polyvinyl chloride, nitro alkyd paint etc., 21 days		Nondiscoloration	Nondiscoloration	JB1470～81

Claims (8)

1. anti-rusting antibiotic water base cutting fluid is characterized in that component has following weight percent:

Machinery oil 5.0～10.0%, alkenyl succinic acid 0.2～1.0%, oleic acid 5.0～15.0%, tensio-active agent 8.0～24.0%, boric acid 0.3～2.0%, mix hydramine 2.0～7.0%, thiophosphatephosphorothioate 3.0～6.0%, defoamer 0.1～1.0%, Sodium Nitrite 1.0～4.5%, Sodium Benzoate 0.01～0.1%, water 29.40～75.39%.

2. anti-rusting antibiotic water base cutting fluid according to claim 1 is characterized in that described machinery oil is 7～Number l3 machine oil or their mixture.

3. anti-rusting antibiotic water base cutting fluid according to claim 1 is characterized in that described tensio-active agent is independent polyoxyethylene glycol, O π or T80, or their mixture; Described molecular weight polyethylene glycol is 400 or 800; Described O π series is O π 10～O π 15.

4. anti-rusting antibiotic water base cutting fluid according to claim 1, it is characterized in that mixing hydramine is independent diethanolamine, trolamine or diethylenetriamine, or their mixture.

5. anti-rusting antibiotic water base cutting fluid according to claim 1 is characterized in that thiophosphatephosphorothioate is the thiophosphoric acid zincum salts.

6. according to the cutting fluid of the described anti-rusting antibiotic water base of claim 1, it is characterized in that defoamer is methyl-silicone oil or Atactic Polypropelene.

7. preparation method according to claim 1,2,3,4,5,6 described anti-rusting antibiotic water base cutting fluids, it is characterized in that having following preparation feedback step: stir on one side, on one side heated mechanical oil, oleic acid to 80～90 ℃ add alkenyl succinic acid and stirred 1 hour; Be warmed up to 90～100 ℃, add boric acid while stirring and mix hydramine stirring 20 minutes; Add thiophosphatephosphorothioate and stirred 20 minutes, cool to 50 ℃, after adding defoamer and stirring evenly, said mixture slowly is poured in 50 ℃ of hot water that are dissolved with Sodium Nitrite, Sodium Benzoate, the limit bevelling stirs and makes it to be emulsified into this product concentrated solution.

8. the preparation method of anti-rusting antibiotic water base cutting fluid according to claim 7 is characterized in that mixing hydramine and boric acid adds simultaneously, or earlier with the boric acid Hybrid Heating after adding again.