CN104250762A - Preparation method of oil injection pump plunger surface phosphating liquid - Google Patents

Abstract

The invention discloses a preparation method of an oil injection pump plunger surface phosphating liquid. The preparation method of the phosphating liquid comprises the steps: (1) taking an appropriate amount of water to blend zinc oxide into a paste; (2) taking an appropriate amount of water again, adding phosphoric acid and nitric acid to obtain a mixed solution, adding the pasty zinc oxide of the step (1), and then putting into a reaction kettle; and (3) successively adding nickel nitrate, ferric nitrate, copper nitrate, sodium citrate, tartaric acid, sodium fluoroborate, sodium chlorate, hydrogen peroxide and sodium carbonate into the reaction kettle by a way of adding the next component after the former component is dissolved, and after all the components are dissolved, adjusting the pH to 2-3.

Description

A kind of compound method of injection pump plunger alramenting liquid

Technical field

The present invention relates to technical field of surface, particularly relate to a kind of compound method of injection pump plunger alramenting liquid.

Background technology

Since the mankind start the civilization of slash-and-burn cultivation, the use of instrument, the dependence of metal just never to be stopped.The develop rapidly of the modern industry, the output of iron and steel more becomes the important symbol of a measurement national comprehensive strength.The present situation moment that the continuous multiplication of iron and steel output and a large amount of iron and steel are corroded annoyings manufacturer from one generation to the next and numerous users.Just because of this, numerous universities and colleges, numerous scientific research personnel and engineering technical personnel have dropped in the campaign of anticorrosion of iron and steel, and the Anticorrosion measure such as pickling, phosphatization, application, plating and technology continue to bring out.

Bonderizing is before ferrous materials application or requisite treatment process before drawing process, has the applicating history of decades in China.But it is due to the restriction of people's understanding, far apart with external level of the same trade.In recent years in order to energy-conserving and environment-protective, Sustainable development, adapts to the need of production of medium and small sized enterprises better, and numerous producer has released one after another normal-temperature phosphorizing liquid.Various normal-temperature phosphorizing liquid is countless in the market, but ubiquity phosphatization temperature is higher, phosphating time is longer, the feature of solidity to corrosion difference after more, the phosphatization of phosphatization precipitation.

Existing normal-temperature phosphorizing liquid main component is the mixture of primary zinc phosphate and zinc nitrate, be main containing micro-phosphoric acid and promotor (greatly mainly with Sodium Nitrite), because promotor kind is single, the service requirements of medium and small sized enterprises can also be met in summer, once after entering autumn, along with the continuous reduction of temperature, medium and small sized enterprises are just difficult to normal use, do not heat winter and cannot use.

Numerous medium and small sized enterprises heat condition general difficulty, and do not possess the steam-heated pipe line of large enterprises, production lot and integrated planning are also generally poor, everything all determines numerous medium-sized and small enterprises or maintains and produces, can only Simple boiler be used, discharging waste gas contaminate environment, or stop production winter!

Conventional diesel engine fuel injecting pump plunger front end is not through surface treatment, and its oil spout head can not stand high temperature, corrosion-vulnerable usually for a long time, shortens to making product life.Employing is carried out bonderizing to it and can significantly be improved its work-ing life.

Summary of the invention

The object of the invention is to the compound method proposing a kind of injection pump plunger alramenting liquid, the Phosphating Solution stable performance of the method preparation, precipitation is few, this Phosphating Solution is by the adjustment of component, can use at normal temperature and low temperature, and after phosphatization, solidity to corrosion is strong, significantly can improve the work-ing life of injection pump plunger.

For reaching this object, the present invention by the following technical solutions:

A compound method for injection pump plunger alramenting liquid, this Phosphating Solution consists of: 85% phosphatase 11 0-12g/L, 68% nitric acid 6-8%, zinc oxide 16-18g/L, nickelous nitrate 4-6g/L, iron nitrate 2-4g/L, cupric nitrate 1-2g/L, Trisodium Citrate 3-5g/L, tartrate 5-7g/L, Sodium tetrafluoroborate 1-2g/L, sodium chlorate 0.5-1.5g/L, hydrogen peroxide 1.5-2.5ml/L, sodium carbonate 3-4g/L, surplus is water, and described preparation method of phosphating liquid is:

(1) get suitable quantity of water and zinc oxide is modulated into pasty state;

(2) get suitable quantity of water again, phosphoric acid and nitric acid are added and prepares mixed solution, then add the pasty state zinc oxide of (1) step, then drop into reactor;

(3) nickelous nitrate, iron nitrate, cupric nitrate, Trisodium Citrate, tartrate, Sodium tetrafluoroborate, sodium chlorate, hydrogen peroxide, sodium carbonate are added in reactor successively, after last components dissolved, add a rear component, after all dissolving, regulate pH extremely at 2-3.

The beneficial effect that technical solution of the present invention is brought:

1, the Phosphating Solution phosphatization injection pump plunger of the present invention's preparation is adopted, can at coating surface one deck phosphatize phosphate coat, this phosphatize phosphate coat is fine and close, hard, corrosion-resistant, therefore can improve work-ing life 1.5-2 times of injection pump plunger.

2, treatment temp is low, even if in the winter time, most area also can use, and can normally produce.

3, improve production efficiency; Adopt the Phosphating Solution phosphating time of the present invention's preparation only to need 6-15 minute, depend on temperature, even if when about 5 DEG C, within 15 minutes, can phosphatization complete, therefore, production efficiency significantly improves.

4, sediment is few, reduce and drag for slag, and the reagent feature of environmental protection adopted is good, pollutes few.

Embodiment

Embodiment one

A compound method for injection pump plunger alramenting liquid, this Phosphating Solution consists of: 85% phosphatase 11 0g/L, 68% nitric acid 8g/L, zinc oxide 16g/L, nickelous nitrate 6g/L, iron nitrate 2g/L, cupric nitrate 2g/L, Trisodium Citrate 3g/L, tartrate 7g/L, Sodium tetrafluoroborate 1g/L, sodium chlorate 1.5g/L, hydrogen peroxide 1.5ml/L, sodium carbonate 4g/L, surplus is water; Described preparation method of phosphating liquid is:

(1) get suitable quantity of water and zinc oxide is modulated into pasty state;

(2) get suitable quantity of water again, phosphoric acid and nitric acid are added and prepares mixed solution, then add the pasty state zinc oxide of (1) step, then drop into reactor;

(3) nickelous nitrate, iron nitrate, cupric nitrate, Trisodium Citrate, tartrate, Sodium tetrafluoroborate, sodium chlorate, hydrogen peroxide, sodium carbonate are added in reactor successively, after last components dissolved, add a rear component, after all dissolving, regulate pH extremely at 2-3.

Embodiment two

A compound method for injection pump plunger alramenting liquid, this Phosphating Solution consists of: 85% phosphatase 11 2g/L, 68% nitric acid 6g/L, zinc oxide 18g/L, nickelous nitrate 4g/L, iron nitrate 4g/L, cupric nitrate 1g/L, Trisodium Citrate 5g/L, tartrate 5g/L, Sodium tetrafluoroborate 2g/L, sodium chlorate 0.5g/L, hydrogen peroxide 2.5ml/L, sodium carbonate 3g/L, surplus is water; Described preparation method of phosphating liquid is:

(1) get suitable quantity of water and zinc oxide is modulated into pasty state;

(2) get suitable quantity of water again, phosphoric acid and nitric acid are added and prepares mixed solution, then add the pasty state zinc oxide of (1) step, then drop into reactor;

(3) nickelous nitrate, iron nitrate, cupric nitrate, Trisodium Citrate, tartrate, Sodium tetrafluoroborate, sodium chlorate, hydrogen peroxide, sodium carbonate are added in reactor successively, after last components dissolved, add a rear component, after all dissolving, regulate pH extremely at 2-3.

Embodiment three

A compound method for injection pump plunger alramenting liquid, this Phosphating Solution consists of: 85% phosphatase 11 1g/L, 68% nitric acid 7g/L, zinc oxide 17g/L, nickelous nitrate 5g/L, iron nitrate 3g/L, cupric nitrate 1.5g/L, Trisodium Citrate 4g/L, tartrate 6g/L, Sodium tetrafluoroborate 1.5g/L, sodium chlorate 1g/L, hydrogen peroxide 2ml/L, sodium carbonate 3.5g/L, surplus is water; Described preparation method of phosphating liquid is:

(1) get suitable quantity of water and zinc oxide is modulated into pasty state;

(2) get suitable quantity of water again, phosphoric acid and nitric acid are added and prepares mixed solution, then add the pasty state zinc oxide of (1) step, then drop into reactor;

(3) nickelous nitrate, iron nitrate, cupric nitrate, Trisodium Citrate, tartrate, Sodium tetrafluoroborate, sodium chlorate, hydrogen peroxide, sodium carbonate are added in reactor successively, after last components dissolved, add a rear component, after all dissolving, regulate pH extremely at 2-3.

Claims (1)

1. a compound method for injection pump plunger alramenting liquid, is characterized in that, this Phosphating Solution consists of: 85% phosphatase 11 0-12g/L, 68% nitric acid 6-8%, zinc oxide 16-18g/L, nickelous nitrate 4-6g/L, iron nitrate 2-4g/L, cupric nitrate 1-2g/L, Trisodium Citrate 3-5g/L, tartrate 5-7g/L, Sodium tetrafluoroborate 1-2g/L, sodium chlorate 0.5-1.5g/L, hydrogen peroxide 1.5-2.5ml/L, sodium carbonate 3-4g/L, surplus is water, and described preparation method of phosphating liquid is:

(1) get suitable quantity of water and zinc oxide is modulated into pasty state;

(2) get suitable quantity of water again, phosphoric acid and nitric acid are added and prepares mixed solution, then add the pasty state zinc oxide of (1) step, then drop into reactor;

(3) nickelous nitrate, iron nitrate, cupric nitrate, Trisodium Citrate, tartrate, Sodium tetrafluoroborate, sodium chlorate, hydrogen peroxide, sodium carbonate are added in reactor successively, after last components dissolved, add a rear component, after all dissolving, regulate pH extremely at 2-3.