CN102719836A - High-pressure spraying treating agent before spray coating of mine truck tipping bin and preparation method - Google Patents

Abstract

The invention discloses a high-pressure spraying treating agent before spray coating of a mine truck tipping bin, which can remove pollutants on metal surface, prevent secondary pollution of the metal surface, and guarantee the quality of spray coating layer, and a preparation method. The high-pressure spraying treating agent is composed of an agent A and an agent B, wherein the agent A is prepared from the raw materials in percentage by weight: 10-30% of phosphoric acid, 5-15% of nitric acid, 4-12% of hydrofluoric acid, 1-4% of phytic acid, 1-4% of citric acid, 0.5-1.5% of JFC, 2-6% of special surfactant for acidic degreasing and derusting, 2-6% of special surfactant for acidic degreasing and deashing, 1-3% of defoaming agent and the balance of water; and the agent B is prepared from the raw materials in percentage by weight: 10-20% of phosphoric acid, 20-40% of heavy-rust conversion film treating agent, 1-4% of phytic acid, 0.5-3% of tartaric acid, 1-3% of sodium chlorate, 0.5-1.5% of JFC, 1-3% of defoaming agent and the balance of water.

Description

Mine bogie tipping bucket spray-coating is preceding with high pressure spraying treatment agent and preparation method

Technical field

The present invention relates to a kind of metal surface passivant and preparation method thereof, especially a kind ofly remove the metallic surface dirt, prevent the metallic surface secondary pollution, guarantee before the mine bogie tipping bucket spray-coating of spray-coating layer quality with high pressure spraying treatment agent and preparation method.

Background technology

Needing all as the steel and iron member spray-coating is last that the phosphatization conversion film is carried out on its surface handles; Its effect is to make the coating protecting layer on surface with metallic matrix good combining arranged on the one hand; In the time of can or being corroded the medium eating thrown in the local damage of topcoating protective layer on the other hand; Protecting metallic matrix, exempting from the direct corrosion of medium, preventing the metallic corrosion expansion under the topcoating protective layer metallic matrix.For this reason as the phosphatization conversion film of spray-coating bottom, require that rete is fine and close, quality is even, crystal grain is tiny, thickness is moderate.Existing phosphatization conversion film is handled and is generally all adopted drill traverse mode-rust cleaning-phosphatization of carrying out degreasing.

300 tons of big tipping buckets of mine bogie, its overall dimensions are 16m * 5m * 3.5m, are the hot rolling Plate Steel and are welded, and all require spraying epoxy group(ing) priming paint earlier for big tipping bucket surfaces externally and internally, spray twice epoxy polyester finish coat again.Yet because the tipping bucket volume is excessive; Can't adopt the process method of the mode of drill traverse-rust cleaning-phosphatization of carrying out degreasing that tipping bucket hot-rolled steel sheet surface is carried out giving processing before the spray-coating; Can only adopt the method for the artificial polishing of angle grinding machine, just carry out spray-coating after promptly destroying surface of steel workpiece dirt (grease, thick rust and oxide debris).Huge because of the tipping bucket workpiece, the tipping bucket workpiece of polishing needs the time (calculating by ten operators) in a week, wastes time and energy, and labor strength is very big; Main is only carries out mechanical grinding to the metallic surface and does not carry out the phosphatization conversion film and handle, and keeps away unavoidable metallic surface and produces secondary oxidation corrosion takes place again, directly influences the technological effect of spray-coating, causes the paint film of spray-coating very easily to come off.

Summary of the invention

The present invention is in order to solve the above-mentioned technical problem of existing in prior technology, to provide a kind of and remove the metallic surface dirt, prevent the metallic surface secondary pollution, guarantee that the mine bogie tipping bucket spray-coating of spray-coating layer quality is preceding with high pressure spraying treatment agent and preparation method.

Technical solution of the present invention is: uses the high pressure spraying treatment agent before the bogie tipping bucket spray-coating of a kind of mine, it is characterized in that constituting by A agent and B agent,

The raw material and the mass percent of said A agent are following:

Phosphatase 11 0 ~ 30%

Nitric acid 5 ~ 15%

Hydrofluoric acid 4 ~ 12%

Phytic acid 1 ~ 4%

Hydrocerol A 1 ~ 4%

JFC 0.5~1.5%

Acid degreasing rust cleaning special surfactant 2 ~ 6%

Acid degreasing ash disposal special surfactant 2 ~ 6%

Skimmer 1 ~ 3%

Water surplus;

The raw material and the mass percent of said B agent are following:

Phosphatase 11 0 ~ 20%

Conversion film treatment agent 20 ~ 40% heavily becomes rusty

Phytic acid 1 ~ 4%

Tartrate 0.5 ~ 3%

VAL-DROP 1 ~ 3%

JFC 0.5~1.5%

Skimmer 1 ~ 3%

Water surplus.

The preceding preparation method with the high pressure spraying treatment agent of a kind of above-mentioned mine bogie tipping bucket spray-coating is characterized in that:

Said A agent is carried out as follows: the water that will calculate weighing joins in the special-purpose reaction kettle; Agitator; The control rotating speed is 60 rev/mins; And thread adds phosphoric acid, nitric acid, hydrofluoric acid, phytic acid, Hydrocerol A, JFC, acid degreasing rust cleaning special surfactant, acid degreasing ash disposal special surfactant, the skimmer that calculates weighing slowly successively, whenever adds a kind of raw material and all stirs at least 10 minutes, after whole raw materials addings finish; The solution that continues again to be stirred in the reaction kettle is transparence, the blowing packing;

Said B agent is carried out as follows: the water that will calculate weighing joins in the reaction kettle; Agitator; The control rotating speed is 80 rev/mins, add to calculate the phosphoric acid of weighing, heavily become rusty conversion film treatment agent, phytic acid, tartrate, VAL-DROP, JFC, skimmer then successively, whenever adds a kind of raw material and need stir 20min at least; The solution that after whole raw materials addings finish, continues again to be stirred in the reaction kettle is transparence, the blowing packing.

The present invention only needs through the high pressure spraying machine A agent to be ejected on the tipping bucket surface; Promptly reach the purpose of cleaning (degreasing, rust cleaning, removal welding oxide debris etc.); Through the high pressure spraying machine B agent of the present invention is ejected into workpiece surface again, promptly realizes directly and the ironing surface oxide debris reaction of HRS generation conversion film.Can spray immediately after the seasoning and brush various paint; Avoid tipping bucket surface secondary oxidation, guarantee that spraying application quality, each item detect index and satisfy GB GB1771-86, GB1720-86 simultaneously; GB1732-86, GB6807-86 and standard laid down by the ministries or commissions of the Central Government JB/Z111-86 standard-required.Can under the normal temperature state, use, whole chemical treatment technology is simple, easy to operate, need not the operator of mechanical grinding, has reduced working strength of workers and production cost, and A agent, B agent working fluid all can be recycled simultaneously, reach the purpose of energy-saving and emission-reduction.

Embodiment

Embodiment 1:

Be made up of A agent and B agent, the raw material and the mass percent of said A agent are following:

Phosphatase 11 0%

Nitric acid 15%

Hydrofluoric acid 4%

Phytic acid 4%

Hydrocerol A 1%

JFC (permeate agent) 1.5%

Acid degreasing rust cleaning special surfactant 2%

Acid degreasing ash disposal special surfactant 6%

Skimmer 1%

Water surplus

The raw material and the mass percent of said B agent are following:

Phosphatase 11 0%

Conversion film treatment agent 40% heavily becomes rusty

Phytic acid 1%

Tartrate 3%

VAL-DROP 1%

JFC (permeate agent) 1.5%

Skimmer 1%

Water surplus.

The preparation method:

The A agent is carried out as follows: the tap water that will calculate weighing joins in the special-purpose reaction kettle; Agitator, the control rotating speed is 60 rev/mins, and thread adds phosphoric acid, nitric acid, hydrofluoric acid, phytic acid, Hydrocerol A, JFC, acid degreasing rust cleaning special surfactant, QYL-213A, the skimmer that calculates weighing slowly successively; Whenever adding a kind of raw material all stirred 10 minutes at least; After whole raw materials addings finished, the solution that continues again to be stirred in the reaction kettle was transparence, the blowing packing;

The B agent is carried out as follows: the tap water that will calculate weighing joins in the reaction kettle; Agitator; The control rotating speed is 80 rev/mins, adds phosphoric acid, BL-202, phytic acid, tartrate, VAL-DROP, JFC, the skimmer that calculates weighing then successively, whenever adds a kind of raw material and need stir 20min at least; The solution that after whole raw materials addings finish, continues again to be stirred in the reaction kettle is transparence, the blowing packing.

The raw materials used commercially available prod that is, wherein acid degreasing rust cleaning special surfactant, acid degreasing ash disposal special surfactant are the products that Yang Long Science and Technology Ltd. is opened by the Shenzhen, product type is respectively Y-50, QYL-213A; The conversion film treatment agent that heavily becomes rusty is the product of Dalian Sandaaoke Chemistry Co., Ltd., and product type is BL-202.

Embodiment 2:

Be made up of A agent and B agent, the raw material and the mass percent of said A agent are following:

Phosphoric acid 30%

Nitric acid 5%

Hydrofluoric acid 12%

Phytic acid 1%

Hydrocerol A 4%

JFC 0.5%

Acid degreasing rust cleaning special surfactant 6%

Acid degreasing ash disposal special surfactant 2%

Skimmer 3%

Water surplus;

The raw material and the mass percent of said B agent are following:

Phosphoric acid 20%

Conversion film treatment agent 20% heavily becomes rusty

Phytic acid 4%

Tartrate 0.5%

VAL-DROP 3%

JFC 0.5%

Skimmer 3%

Water surplus.

Preparing method and raw material sources are with embodiment 1.

Embodiment 3:

Be made up of A agent and B agent, the raw material and the mass percent of said A agent are following:

Phosphoric acid 20%

Nitric acid 10%

Hydrofluoric acid 8%

Phytic acid 3%

Hydrocerol A 3%

JFC 1.0%

Acid degreasing rust cleaning special surfactant 4%

Acid degreasing ash disposal special surfactant 4%

Skimmer 2%

Water surplus;

The raw material and the mass percent of said B agent are following:

Phosphatase 11 5%

Conversion film treatment agent 30% heavily becomes rusty

Phytic acid 3%

Tartrate 2%

VAL-DROP 2%

JFC 1.0%

Skimmer 2%

Water surplus.

Preparing method and raw material sources are with embodiment 1.

Use the embodiment of the invention 1,2 or at 3 o'clock, A agent water is mixed with concentration 5 ~ 10% working fluids carries out high pressure spraying and handle; B agent water is mixed with concentration 10 ~ 20% working fluids carries out the high pressure spraying processing.Concrete process method is:

(1) earlier 300 tons of big tipping buckets is hung into miter angle, and be equipped with the plastic pallet of recovery operation liquid in the bottom;

(2) adopt German import high pressure spraying machine that A agent working fluid is sprayed the tipping bucket surfaces externally and internally, the working parameter of high pressure spraying machine is: spray covering of the fan angle 30 degree, MPa1.2 ~ 1.6; 0.3 cube/min of flow; Lift: 60 meters, 40 ~ 50 ℃ of temperature, all sites injecting time is 30s at least.The result: with grease, heavily the high temperature oxide layer and the stores of rust, weld are removed, the A agent working fluid of backflow pallet is recovered to use to be recycled in the special-purpose plastic tank;

(3) adopt German import high pressure spraying machine that B agent working fluid is sprayed the tipping bucket surfaces externally and internally again; The working parameter of high pressure spraying machine is: spray covering of the fan angle 45 degree; MPa1.0 ~ 1.2,0.3 cube/min of flow, lift: 60 meters; 30 ~ 40 ℃ of temperature, all sites injecting time is 30s at least.The result: generate the phosphatization conversion film in the reaction of hot rolled steel plate surface oxidation skin, the B agent working fluid of backflow pallet is recovered to special-purpose plastic tank use to be recycled;

(4) adopt pressurized air long pipe type high-pressure spray gun that the tipping bucket surfaces externally and internally is blown water, blows down debris, and all dry up whole surface;

(5) the local film forming properties of selecting the multiple spot place to detect the phosphatization conversion film can change the spray-coating operation over to after requisite quality and integral surface thoroughly parch.

Claims (2)

1. use the high pressure spraying treatment agent before a mine bogie tipping bucket spray-coating, it is characterized in that constituting by A agent and B agent,

The raw material and the mass percent of said A agent are following:

Phosphatase 11 0 ~ 30%

Nitric acid 5 ~ 15%

Hydrofluoric acid 4 ~ 12%

Phytic acid 1 ~ 4%

Hydrocerol A 1 ~ 4%

JFC 0.5~1.5%

Acid degreasing rust cleaning special surfactant 2 ~ 6%

Acid degreasing ash disposal special surfactant 2 ~ 6%

Skimmer 1 ~ 3%

Water surplus;

The raw material and the mass percent of said B agent are following:

Phosphatase 11 0 ~ 20%

Conversion film treatment agent 20 ~ 40% heavily becomes rusty

Phytic acid 1 ~ 4%

Tartrate 0.5 ~ 3%

VAL-DROP 1 ~ 3%

JFC 0.5~1.5%

Skimmer 1 ~ 3%

Water surplus.

Before the mine as claimed in claim 1 bogie tipping bucket spray-coating with the preparation method of high pressure spraying treatment agent, it is characterized in that:

Said A agent is carried out as follows: the water that will calculate weighing joins in the special-purpose reaction kettle; Agitator; The control rotating speed is 60 rev/mins; And thread adds phosphoric acid, nitric acid, hydrofluoric acid, phytic acid, Hydrocerol A, JFC, acid degreasing rust cleaning special surfactant, acid degreasing ash disposal special surfactant, the skimmer that calculates weighing slowly successively, whenever adds a kind of raw material and all stirs at least 10 minutes, after whole raw materials addings finish; The solution that continues again to be stirred in the reaction kettle is transparence, the blowing packing;

Said B agent is carried out as follows: the water that will calculate weighing joins in the reaction kettle; Agitator; The control rotating speed is 80 rev/mins, add to calculate the phosphoric acid of weighing, heavily become rusty conversion film treatment agent, phytic acid, tartrate, VAL-DROP, JFC, skimmer then successively, whenever adds a kind of raw material and need stir 20min at least; The solution that after whole raw materials addings finish, continues again to be stirred in the reaction kettle is transparence, the blowing packing.