CN1191342C - Compsn. of rust inhibiting lubricant special for chain - Google Patents

Abstract

A special anti-rust lubricant composition for chains, comprising the following components: (1) sulfonate anti-rust agent, 2-16%; (2) alkenyl succinic acid type anti-rust agent, 0.1-2%; ( 3) dialkyl dithiophosphoric acid-formaldehyde-fatty amine condensate, 0.2-1%; (4) vegetable oil oily agent, 5-15%; (5) benzotriazole fatty amine salt, 0.02-0.5%; ( 6) Polyisobutylene, 8-20%; (7) Vaseline, 10-30%; (8) 2,6-di-tert-butyl-p-cresol, 0.1-1%; (9) Base oil, the balance. The special anti-rust lubricant composition for chains provided by the invention has excellent anti-rust properties, salt spray resistance, water displacement properties, extreme pressure properties, wear resistance, adhesion and easy coating properties, and can be used for automotive chains Anti-rust lubrication and long-term storage.

Description

Anti-rust lubricant composition for chains

technical field

The invention relates to a lubricant composition, more specifically, to a special antirust lubricant composition for chains.

Background technique

Vehicle chains need to be dip-coated with anti-rust oil before they are packaged in the chain factory. When the chain is assembled on the vehicle and put into operation in the vehicle factory, it needs to be coated with lubricant before it can be put into use. Anti-rust oil is required to have good water displacement, rust resistance and salt spray resistance to ensure that the chain does not rust during storage and transportation; lubricants are required to have good extreme pressure, wear resistance and adhesion to Ensure that the vehicle is fully lubricated during operation and that the lubricant is not easily thrown off. The traditional operation method is to apply anti-rust agent first during storage, and then apply lubricant during operation. This is not only troublesome to operate, but also prone to lubrication failure. Because the general user does not take the method of cleaning the antirust agent first and then applying the lubricant when applying the lubricant, but directly applies the lubricant, which is prone to the phenomenon that the lubricant cannot completely replace the antirust agent, resulting in Some important friction surfaces cannot be fully lubricated, causing wear and tear of the chain. Therefore, some high-end chains with complex structures need to be coated with multi-functional anti-rust lubricants when the chains are packaged and leave the factory, so that they can not only meet the anti-rust requirements for long-term storage, but also meet the lubrication requirements of the chains when they are put into use.

CN 1082594A discloses a special lubricating oil for chains and its preparation method, which consists of castor oil, rapeseed oil, ethanol, oily graphite, tungsten disulfide, 2,6-di-tert-butyl p-cresol, sorbitol Anhydride monooleate, stearic acid, lanolin, n-decyl alcohol, n-octanol, n-nonanol. Although the oil has excellent lubricity, it has insufficient rust resistance and can only be used for the lubrication of chains, not for long-term storage of chains, especially for the harsh storage and transportation conditions of export chains across the sea.

US 4719023 discloses a kind of fat compound, and it is made up of base oil, thickening agent, high basic value alkyl salicylate calcium and high basic value alkyl salicylate magnesium. Although the compound has rust resistance and lubricity, it can be used for chain lubrication, but because the product contains a thickener, the dropping point is high, and the coating property is poor, especially for the small gaps of some micro roller chains with more complicated structures. Difficult to apply in place. For hot coating, it needs to be heated to a temperature above the dropping point of the grease to operate.

JP 10-81890 discloses a heat-resistant lubricating oil composition, which has lubricity and high-temperature oxidation resistance, and can be used for drip lubrication of chains, but has poor rust resistance, extreme pressure and adhesion, and is not applicable It is suitable for the lubrication and sealing of vehicle chains to prevent rust.

Contents of the invention

The purpose of the present invention is to provide a multi-functional special lubricant for chains which can be used not only for chain storage and rust prevention, but also for chain lubrication.

The special antirust lubricant composition for chains provided by the invention comprises the following components (the content is based on the total weight of the composition):

(1) Sulfonate rust inhibitor, 2-16%, preferably 5-14%;

(2) Alkenyl succinic acid type rust inhibitor, 0.1-2%, preferably 0.2-1.5%;

(3) dialkyl dithiophosphoric acid-formaldehyde-fatty amine condensate, 0.2-1%, preferably 0.4-0.8%;

(4) Vegetable oily agent, 5-15%, preferably 8-12%;

(5) Benzotriazole fatty amine salt, 0.02-0.5%, preferably 0.10-0.3%;

(6) Polyisobutylene, 8-20%, preferably 10-15%;

(7) Vaseline, 10-30%, preferably 15-25%;

(8) 2,6-di-tert-butyl-p-cresol, 0.1-1%, preferably 0.2-0.5%;

(9) Base oil, balance.

Component (1) of the composition of the present invention is a sulfonate antirust agent, which can be barium petroleum sulfonate or barium dinonylnaphthalene sulfonate. The Chinese trade names are T701 and T705, which are commercially available. The main function of component (1) is to improve the antirust property, water displacement property and salt spray resistance of the composition.

Component (2) of the composition of the present invention is alkenyl succinic acid antirust agent, can be dodecenyl succinic acid or dodecenyl succinic acid half ester, Chinese trade name is T746 and T746A, component (2) The main function is to improve the rust resistance of the composition.

Component (3) of the composition of the present invention is a dialkyl dithiophosphoric acid-formaldehyde-fatty amine condensate, preferably n-butylisooctyl dithiophosphoric acid-formaldehyde-fatty amine condensate, whose Chinese trade name is T305. The main function of component (3) is to improve the extreme pressure and antiwear properties of the composition.

Component (4) of the composition of the present invention is a vegetable oily agent, which can be vegetable oil esters such as castor oil and oxidized rapeseed oil, and is commercially available. The main function of component (4) is to improve the oiliness of the composition and reduce the coefficient of friction.

Component (5) of the composition of the present invention is a fatty amine salt of benzotriazole, which is commercially available under the trade name T406 in China. This component is a multi-effect additive with oiliness, anti-wear, anti-oxidation, anti-corrosion, anti-corrosion and other properties, and is mainly used to improve the anti-rust, lubricating and anti-oxidation effects of the composition.

Component (6) of the composition of the present invention is polyisobutylene viscosity additive, its molecular weight is 1300～2400, and the Chinese trade name is T603, and commercial sale is available. The main function of component (6) is to increase the adhesion of the composition and increase the viscosity index, so that the composition can adhere well to the surface of the chain, and will not be thrown off when the vehicle is running at high speed. At the same time, when the temperature of the chain runs , so that the viscosity of the composition does not drop too much.

Component (7) of the composition of the present invention is industrial vaseline, conforms to the SH0039-90 standard, and is commercially available. The main function of component (7) is to improve the adhesion of the composition and make the composition have a lower rheological point, so that the composition has better applicability.

Component (8) of the composition of the present invention is 2,6-di-tert-butyl-p-cresol antioxidant, the Chinese trade name is T501, commercially available. The main function is to improve the anti-oxidation ability of the composition and reduce the formation of oxides during the storage and use of oil products.

Component (9) of the composition of the present invention is a base oil whose kinematic viscosity at 40°C is 250-400 mm ² /s, which may be mineral lubricating oil, synthetic hydrocarbon oil, or a mixture of mineral lubricating oil and synthetic hydrocarbon oil.

The special antirust lubricant composition for chains provided by the invention has the following advantages:

1. It has excellent rust resistance, salt spray resistance and water displacement, and can be used for long-term storage and rust prevention of vehicle chains.

2. It has excellent extreme pressure and anti-wear properties, and can meet the lubrication requirements of the vehicle chain during use. It can be directly put into use without changing the lubricant when the chain is opened and used.

3. It has excellent adhesion, can be firmly adsorbed on the friction surface, and will not be thrown off by centrifugal force during vehicle operation, which can effectively prolong the oil replenishment time.

4. It has good coating properties. When the new chain needs hot-dip coating, it only needs to heat the composition to 80°C to make it fluid, which is very beneficial to the hot coating operation.

5. The present invention utilizes the synergistic effect of various additives to properly take into account the extreme pressure and wear resistance, adhesion, viscosity-temperature and ease of coating of the composition, so that the chain coated with the composition can withstand the wear resistance in the durable wear test. Exhibits lower average chain elongation.

Detailed ways

Example 1

Barium petroleum sulfonate 10%; alkenyl succinic acid 0.5%; n-butyl isooctyl dithiophosphoric acid-formaldehyde-fatty amine condensate 0.5%; castor oil 10%; benzotriazole fatty amine salt 0.3%; polyisobutene 10 %; petrolatum 15%; 2,6-di-tert-butyl-p-cresol 0.2%; 150BS base oil 53.5%. See Table 1 for the performance indicators of the formulated composition.

Example 2

Dinonyl naphthalene barium sulfonate 6%; alkenyl succinic acid 1.3%; n-butyl isooctyl dithiophosphoric acid-formaldehyde-fatty amine condensate 0.4%; oxidized rapeseed oil (produced by Feima Lubricating Oil Factory) 8%; Triazole fatty amine salt 0.1%; polyisobutene 6%; petrolatum 20%; 2,6-di-tert-butyl-p-cresol 0.2%; 150BS base oil 58%. See Table 1 for the performance indicators of the formulated composition.

Example 3

Dinonyl naphthalene barium sulfonate 6%; alkenyl succinate 2.0%; n-butyl isooctyl dithiophosphoric acid-formaldehyde-fatty amine condensate 0.4%; oxidized rapeseed oil 8%; benzotriazole fatty amine salt 0.2% 13% polyisobutylene; 15% petrolatum; 0.2% 2,6-di-tert-butyl-p-cresol; 55.2% 150BS base oil. See Table 1 for the performance indicators of the formulated composition.

Table 1 composition performance index project Example 1 Example 2 Example 3 Specifications experimental method Damp heat test, d, ≥(49+1℃, 45 ^#steel ) 17 20 20 >14 GB/T2361 Salt spray test, d, ≥(35±1℃, 45 ^#steel ) 5 6 6 4 SH/T0081 Corrosion test (T ₂ steel, 100℃, 3hr) qualified qualified qualified qualified SH/T0195 Lamination test (49±1℃, 45 ^# steel, 7d) qualified qualified qualified qualified SH/T0367 Anti-wear performance (four-ball machine method), mm (60±2°C, 392N, 30min) 0.4 0.46 0.42 0.5 SH/T0204 Extreme pressure performance (P _B ), N, ≥ 833 784 784 686 SH/T0203 Average chain elongation (60hr), mm 1.08 1.10 1.12 ≯1.2 Abrasion test of special chain bench

Claims (9)

1. a rust inhibiting lubricant special for chain composition is a benchmark with the composition gross weight, comprises following component:

(1) barium mahogany sulfonate or dinonyl naphthalene sulfonate barium rust-preventive agent, 2～16 weight %;

(2) alkenyl succinic acid type rust-preventive agent, 0.1～2 weight %;

(3) dialkyl dithiophosphoric acid-formaldehyde-fatty amine condensate, 0.2～1 weight %;

(4) vegetables oil oiliness improver, 5～15 weight %;

(5) 124 Triazole fatty amine salt, 0.02～0.5 weight %;

(6) polyisobutene, 8～20 weight %;

(7) Vaseline, 10～30 weight %;

(8) 2,6 ditertiary butyl p cresol, 0.1～1 weight %;

(9) base oil, surplus.

2. according to the described composition of claim 1, it is characterized in that alkenyl succinic acid type rust-preventive agent is dodecenylsuccinic acid or dodecenylsuccinic acid half ester, its content is 0.2～1.5%.

3. according to the described composition of claim 1, it is characterized in that dialkyl dithiophosphoric acid-formaldehyde-fatty amine condensate is normal-butyl iso-octyl phosphorodithioic acid-formaldehyde-fatty amine condensate, its content is 0.4～0.8%.

4. according to the described composition of claim 1, it is characterized in that the vegetables oil oiliness improver is Viscotrol C or oxidation rape oil, its content is 8～12%.

5. according to the described composition of claim 1, it is characterized in that the content of 124 Triazole fatty amine salt is 0.10～0.3%.

6. according to the described composition of claim 1, it is characterized in that the molecular weight of polyisobutene is 1300～2400, its content is 10～15%.

7. according to the described composition of claim 1, it is characterized in that the content of Vaseline is 15～25%.

8. according to the described composition of claim 1, it is characterized in that the content of 2,6 ditertiary butyl p cresol is 0.2～0.5%.

9. according to the described composition of claim 1, it is characterized in that 40 ℃ of kinematic viscosity of base oil are 250～400mm ²/ s.