CN106189684B - The production method of aqueous protective coating composition and its application and titanium tube - Google Patents
The production method of aqueous protective coating composition and its application and titanium tube Download PDFInfo
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- CN106189684B CN106189684B CN201610552468.0A CN201610552468A CN106189684B CN 106189684 B CN106189684 B CN 106189684B CN 201610552468 A CN201610552468 A CN 201610552468A CN 106189684 B CN106189684 B CN 106189684B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/08—Polyesters modified with higher fatty oils or their acids, or with natural resins or resin acids
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
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- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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Abstract
The present invention relates to paint field, the production method of a kind of aqueous protective coating composition and its application and titanium tube is disclosed.By the total weight of the aqueous protective coating composition be 100 parts by weight in terms of, the aqueous protective coating composition contains the Al of the water-soluble film forming agent of 5-15 parts by weight, the Al powder of 40-45 parts by weight, the Fe powder of 0-1 parts by weight and 40-50 parts by weight2O3Powder.Without containing the harmful element limited in RoHS mass in the aqueous protective coating composition, simultaneously, the aqueous protective coating composition is applied in titanium tube production, it is simple production process, easy to operate, can equipped with pneumatic spraying, airless spraying or brush equipment production line on use online.
Description
Technical field
The present invention relates to paint fields, and in particular, to a kind of aqueous protective coating composition, the coating composition is in titanium
The production method of application and titanium tube in pipe production.
Background technique
At present using the prior art during producing titanium tube, after titanium ingot is kept the temperature 4h in 900 DEG C of heating furnaces, release
Heating furnace carries out rolling titanium tube work.Since titanium-based titanium alloy is after 900 DEG C of heat preservation 4h of high temperature, when rolling titanium tube, meeting and steel
" viscous titanium " occurs for iron rolling equipment, roller-way and rolling capstan winch, this makes rolling titanium tube surface " lacking for different depth occur
Meat " phenomenon, due to being rotation perforation, rolling when rolling titanium tube, titanium base is progress drilling/rolling during high-speed rotation,
Since the hot properties of titanium-based titanium alloy acts on, it is easy to be deposited with phenomenon with iron, produces TiFe phase what is more.If
Titanium tube Surface Creation TiFe, which meets, seriously affects titanium surface mechanical properties and tissue, makes titanium tube in following process and use process
In bring various defects, loss, it is not corrosion-resistant the defects of problem；In addition, since equipment " viscous titanium " causes to roll subsequent
Want first grinding apparatus that could roll subsequent titanium tube again in journey.It is unable to continuous rolling titanium tube or titanium product, when wasting a large amount of
Between and energy consumption；Meanwhile dimension of inner and outer diameters precision and surface quality to guarantee titanium tube, manufacturer is all to have titanium tube surface
The part of " misrun " phenomenon carries out machining, lose in this way it is larger, since titanium ingot is to be reacted to make by titanium sponge, by titanium tube
Inner and outer portions machine away, and seriously affect the cost and lumber recovery of titanium.
Therefore, it is necessary to one kind can effectively prevent titanium-steel bonding, to greatly reduce titanium tube production cost, improve production effect
The coating of rate.
Summary of the invention
The purpose of the present invention is overcoming the phenomenon that production titanium tube is easy to happen titanium-steel bonding in the process in the prior art, mention
For a kind of aqueous protective coating composition and its application and the production method of titanium tube.
To achieve the goals above, the present invention provides a kind of aqueous protective coating composition, wherein with the aqueous protection
The total weight of coating composition is 100 parts by weight meters, and the aqueous protective coating composition contains the water solubility of 5-15 parts by weight
Film forming agent, the Al powder of 40-45 parts by weight, the Fe powder of 0-1 parts by weight and 40-50 parts by weight Al2O3Powder.
The present invention also provides application of the aqueous protective coating composition of the present invention in titanium tube production.
The present invention also provides a kind of production methods of titanium tube, wherein this method, which is included in, carries out rolling titanium tube for titanium ingot
Before, aqueous protective coating composition is coated on the surface of capstan winch and/or roller-way, wherein the aqueous protective coating composition
For aqueous protective coating composition of the present invention.
Aqueous protective coating composition provided by the invention can guarantee titanium ingot 900 DEG C rolling or perforation procedure in, not with
Bonding reaction occurs for steel equipment roller-way and/or capstan winch, improves the lumber recovery and production efficiency of titanium processing.For example, to climb steel
For, titanium product is rolled, 10,000 tons of production capacities are produced in design per year, are calculated with 1.5 tons of each titanium ingot (semifinished product), to be produced 6300 every year
There is titanium steel bonding 5mm-20mm depth calculation with each titanium ingot surface in a or so titanium ingot, and each titanium ingot needs machine away
It 100-200 kilograms, is calculated with 80000 yuan/ton of titanium ingot, each titanium ingot is because " viscous titanium " phenomenon is cut partial loss in 8000-
Between 16000 yuan, meanwhile, also a large amount of human and material resources to be spent to be cut, when additional increase titanium production cost is with producing
Between, and aqueous protective coating of the present invention is used, a large amount of production will be saved for the production of titanium tube and other titanium alloy products
Cost, to use coating 2-5kg to calculate in each titanium ingot operation of rolling, coating price is calculated by 200,000/ton, will save give birth to every year
Produce about 21,420,000 yuan of cost.
Aqueous protective coating composition of the present invention is applied in titanium tube production, it is simple production process, easy to operate, it can
To be used online on the production line equipped with pneumatic spraying, airless spraying or brushing equipment.
Without containing the harmful element limited in RoHS mass in aqueous protective coating composition provided by the invention, meanwhile,
This product is volatilized without noxious material in air, does not influence environmentally friendly effect of construction environment etc.；Aqueous protection in the present invention applies
Feed composition configures simple process, and extemporaneous preparation when can be used, the preparation time is short, simple possible, after production can also being prepared,
It stores at room temperature, coating stabilization shelf-stability can reach 6 months or more, it may appear that precipitating, lamination, still, when use
Shaking up or re-start stirring can be used.
The production method of titanium tube of the present invention is with good economic efficiency and social benefit, in titanium production industry
With more wide popularization and application foreground.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the capstan arrangement for producing titanium tube.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of aqueous protective coating compositions, wherein with the total of the aqueous protective coating composition
Weight is 100 parts by weight meters, and the aqueous protective coating composition contains the water-soluble film forming agent of 5-15 parts by weight, 40-45 weight
Measure the Al powder, the Fe powder of 0-1 parts by weight and the Al of 40-50 parts by weight of part2O3Powder.
According to the present invention, when temperature reaches 900 DEG C, coating starts by smoulder the aqueous protective coating composition
Fall, but Fe can slowly soften, it at this time can be by the Al powder and Al in coating2O3Powder is fixed on roller-way and/or capstan winch surface, also,
Fe is oxidized to Fe2O3, prevent titanium-steel bonding while heat-insulated；Meanwhile Al powder and titanium generation alloying in coating
Reaction forms TiAl3The substance of alloy-layer, the alloy-layer is very fine and close, can completely cut off titanium and extraneous (steel), avoids titanium and outer
Bonding reaction occurs for the substances such as boundary, oxygen element, has the function that prevent titanium-steel bonding.In order to further prevent that titanium-occurs
Steel bonding, under preferable case, be 100 parts by weight by the total weight of the aqueous protective coating composition in terms of, the aqueous protection
Coating composition contain the water-soluble film forming agent of 7-12 parts by weight, the Al powder of 41-44 parts by weight, 0.1-0.8 parts by weight Fe powder
With the Al of 42-44 parts by weight2O3Powder；It is further preferred that with the total weight of the aqueous protective coating composition for 100 weight
Part meter, the aqueous protective coating composition contain the water-soluble film forming agent of 9-11 parts by weight, 42-43 parts by weight Al powder,
The Fe powder of 0.2-0.6 parts by weight and the Al of 43-44 parts by weight2O3Powder.
A preferred embodiment of the invention, the solid content of the aqueous protective coating composition are 83-95 weight
Measure %, pH 6.5-9.5.It is preferred that the aqueous protective coating composition is in alkalescent, it is more advantageous to rolling equipment surface in this way
Uniform high-temperature adhesion resistant knot protective film layer is formed, while film layer can rapid curing at room temperature；Also, the aqueous protection is applied
The solid content of feed composition is preferably 87-94 weight %, can prevent superficial film from trickling, and no matter keeps coating adhesion good
In wet film or when dry film, it is not in that coating falls that coating adhesion, which can meet the needs of titanium ingot roller-way bobbing machine friction,
Skin or picking phenomenon.It is further preferred that the solid content of the aqueous protective coating composition is that 90-94 weight %, pH are
7.7-9.2；It is highly preferred that the solid content of the aqueous protective coating composition is 94 weight %, pH 8-9.
It, can be using commonly used in the art various to the selection of the water-soluble film forming agent without particular/special requirement in the present invention
Water-soluble film forming agent, for example, water-soluble film forming agent can be aqueous epoxy resins, aqueous polyurethane paint, Aqueous acrylic latex
One of paint and Water-borne alkyd coating are a variety of.But the present inventor has found under study for action, when water-soluble film forming agent is preferred
When for aqueous epoxy resins, titanium-steel bonding can be further prevented, therefore, water-soluble film forming agent is preferably aqueous epoxy resins.
For aqueous epoxy resins solid content without particular/special requirement, aqueous epoxy resins commonly used in the art, water-base epoxy can be used
The solid content of resin is preferably 40-60 weight %.
A preferred embodiment of the invention, the aqueous protective coating composition can also containing curing agent,
At least one of dispersing agent and water.It is further preferred that the aqueous protective coating composition contain curing agent, dispersing agent and
Water, it is highly preferred that by the total weight of the aqueous protective coating composition be 100 parts by weight in terms of, the content of the curing agent is
0.1-0.2 parts by weight, the content of the dispersing agent are 0.05-0.1 parts by weight, and the content of water is 0.1-0.5 parts by weight.The water
It is used to be additionally added as diluent, the water does not include being brought by other components in the aqueous protective coating composition
Moisture.
In the present invention, specific substance respective for the curing agent and dispersing agent can use ability without particular/special requirement
Domain commonly various curing agent and dispersing agent.For example, curing agent can be SiO2, dispersing agent can be polyvinyl alcohol, water solubility
At least one of polyethylene wax, polyvinylpyrrolidone and polyethylene glycol oxide.
The present invention without particular/special requirement, can use commonly used in the art the preparation method of the aqueous protective coating composition
Various methods, as long as by each component be uniformly mixed.But the present inventor has found under study for action, with the following method
Aqueous protective coating composition is prepared, each component can be made to mix more evenly.Method particularly includes: it is under stiring, water is slow
It is added in water-soluble film forming agent, after mixing evenly, is slowly added to Al powder, Fe powder and Al while stirring2O3Powder stirs evenly, then
Curing agent is added, is stirred evenly, dispersing agent is added, is stirred, makes liquid in uniform and stable phase.
The present invention also provides application of the aqueous protective coating composition of the present invention in titanium tube production.This is sent out
The bright aqueous protective coating composition is coated in the surface of titanium tube rolling equipment, can be effectively prevented and occurs in titanium tube production process
The phenomenon that titanium-steel bonding.
The present invention also provides a kind of production methods of titanium tube, wherein the method includes titanium ingot is being carried out rolling titanium
Before pipe, aqueous protective coating composition is coated on the surface of capstan winch and/or roller-way, wherein the aqueous protective coating combination
Object is aqueous protective coating composition of the present invention.
In the present invention, the capstan winch is as shown in Figure 1.Coating aqueous protective coating composition on capstan winch surface can effectively prevent
Titanium-steel occurs during only rolling titanium tube by capstan winch to bond.
In the present invention, to the mode of the coating, there is no particular limitation, as long as can be equal by aqueous protective coating composition
It is even to be coated in equipment surface, such as the mode of the coating may include pneumatic spraying, airless spraying or brushing.
According to the present invention, the method can also include to be coated in capstan winch and/or the aqueous protective coating of roller table surface
After composition solidification, titanium ingot is then subjected to rolling titanium tube.
In the present invention, to the dosage of the aqueous protective coating composition, there is no particular limitation, can be according to coating water
Property protective coating composition film layer thickness determine.When thickness is too thin, in rolling or perforation procedure, the rotation of titanium ingot is pasted and is made
It will cause coating adhesion amount thickness at coating to gradually decrease, so to guarantee having enough coating layer thicknesses, prevent by titanium tube whole
It glues；Thickness is too thick to will increase cost.Under preferable case, the amount of the aqueous protective coating composition coating makes described aqueous
The photopolymer layer that protective coating composition is formed after solidifying with a thickness of 0.2-0.4mm, further preferably 0.25-0.35mm, most
Preferably 0.3mm.
In the present invention, to the aqueous cured mode of protective coating composition, there is no particular limitation, can be this field
Usual manner, such as can be spontaneous curing, heated-air drying or induction heating.Aqueous protective coating composition of the present invention exists
It can spontaneous curing in 5min under natural environment.In solidification process, it is only necessary to remove the moisture for being attached to coating surface, not need again
Add any promotor.
In the present invention, to temperature when coating aqueous protective coating composition, there is no particular limitation, still, due to this hair
Bright solvent is water, in order to guarantee that water does not freeze or vaporizes, is preferably coated at normal temperature.The room temperature refers to 0-40 DEG C of model
Interior arbitrary temp is enclosed, such as can be 25 DEG C.
The present invention will be described in detail by way of examples below.In following embodiment and comparative example,
Titanium ingot: thickness 0.28m, length 7.5m, width 1.25m；
Determination of solid content method: GB-T 2793-1995；
PH value measuring method: it uses pH meter (being purchased from Shanghai INESA Scientific Instrument Co., Ltd., thunder magnetic PHSJ-5 type)
It is measured.
Embodiment 1
The present embodiment is used to illustrate the production method of aqueous protective coating composition and titanium tube of the invention.
(1) under normal temperature and pressure (25 DEG C, 0.1MPa), 100g aqueous epoxy resins are weighed (purchased from the special science and technology of Hubei Bath
Company, solid content 50%, similarly hereinafter) be placed in container；
(2) 5g water is added, stirs evenly；
(3) 410g Al powder and 2g Fe powder, 440g Al are weighed2O3Powder is slowly added in container under stiring, and stirring is equal
It is even；
(4) 1g curing agent SiO is weighed2Powder is added container, stirs evenly；
(5) it weighs 0.5g polyethylene of dispersing agent alcohol to be added to the container, stir, make solution in uniform and stable phase, obtain aqueous
Protective coating composition A1.
The solid content for measuring aqueous protective coating composition A1 is 94%, pH value 8.4.
By aqueous protective coating composition A1 automate spray gun (be purchased from Tianjin Tuo Bao Science and Technology Ltd., model:
006_1589, following embodiment and comparative example are same) it is sprayed at capstan winch surface, the amount of spraying makes aqueous protective coating composition solid
The photopolymer layer formed after change with a thickness of 0.3mm, place spontaneous curing after 5min at normal temperatures and pressures, then will be at 900 DEG C
Titanium ingot after heating 4h carries out rolling titanium tube.Titanium-steel bonding does not occur in the operation of rolling between titanium ingot and capstan winch.Titanium tube is become a useful person
Rate is 96%.
Embodiment 2
The present embodiment is used to illustrate the production method of aqueous protective coating composition and titanium tube of the invention.
(1) under normal temperature and pressure (25 DEG C, 0.1MPa), 120g aqueous epoxy resins (solid content 50%) is weighed and are placed in container
In；
(2) 1g water is added, stirs evenly；
(3) 440g Al powder and 4g Fe powder, 420g Al are weighed2O3Powder is slowly added in container under stiring, and stirring is equal
It is even；
(4) 2g curing agent SiO is weighed2Powder is added container, stirs evenly；
(5) it weighs 1g polyethylene of dispersing agent alcohol to be added to the container, stir, make solution in uniform and stable phase, obtain aqueous anti-
Protect coating composition A2.
The solid content for measuring aqueous protective coating composition A2 is 93%, pH value 8.5.
By aqueous protective coating composition A2 automate spray gun (be purchased from Tianjin Tuo Bao Science and Technology Ltd., model:
006_1589, following embodiment and comparative example are same) it is sprayed at capstan winch surface, the amount of spraying makes aqueous protective coating composition solid
The photopolymer layer formed after change with a thickness of 0.3mm, place spontaneous curing after 5min at normal temperatures and pressures, then will be at 900 DEG C
Titanium ingot after heating 4h carries out rolling titanium tube.Titanium-steel bonding does not occur in the operation of rolling between titanium ingot and capstan winch.Titanium tube is become a useful person
Rate is 94%.
Embodiment 3
The present embodiment is used to illustrate the production method of aqueous protective coating composition and titanium tube of the invention.
(1) under normal temperature and pressure (25 DEG C, 0.1MPa), 70g aqueous epoxy resins (solid content 50%) is weighed and are placed in container
In；
(2) 3g water is added, stirs evenly；
(3) 430g Al powder and 6g Fe powder, 430g Al are weighed2O3Powder is slowly added in container under stiring, and stirring is equal
It is even；
(4) 1.5g curing agent SiO is weighed2Powder is added container, stirs evenly；
(5) it weighs 0.8g polyethylene of dispersing agent alcohol to be added to the container, stir, make solution in uniform and stable phase, obtain aqueous
Protective coating composition A3.
The solid content for measuring aqueous protective coating composition A3 is 92%, pH value 8.5.
By aqueous protective coating composition A3 automate spray gun (be purchased from Tianjin Tuo Bao Science and Technology Ltd., model:
006_1589, following embodiment and comparative example are same) it is sprayed at capstan winch surface, the amount of spraying makes aqueous protective coating composition solid
The photopolymer layer formed after change with a thickness of 0.3mm, place spontaneous curing after 5min at normal temperatures and pressures, then will be at 900 DEG C
Titanium ingot after heating 4h carries out rolling titanium tube.Titanium-steel bonding does not occur in the operation of rolling between titanium ingot and capstan winch.Titanium tube is become a useful person
Rate is 93%.
Embodiment 4
Aqueous protective coating composition is prepared according to the method for embodiment 1 and carries out titanium tube production, unlike, aqueous ring
The dosage of oxygen resin is 50g, and the dosage of Al powder is 400g, and the dosage of Fe powder is 5g, Al2O3The dosage of powder is 400g.It obtains aqueous
Protective coating composition A4, the solid content for measuring aqueous protective coating composition A4 is 90%, pH value 8.3.Roll titanium tube
Lumber recovery is 91%.
Embodiment 5
Aqueous protective coating composition is prepared according to the method for embodiment 1 and carries out titanium tube production, unlike, it is water-soluble
Film forming agent is Water-borne alkyd coating (being purchased from the extraterrestrial chemistry painting industry Co., Ltd in Tianjin).Aqueous protective coating composition A5 is obtained,
The solid content for measuring aqueous protective coating composition A5 is 88%, pH value 7.The lumber recovery of titanium tube is 84%.
Embodiment 6
Aqueous protective coating composition is prepared according to the method for embodiment 1 and carries out titanium tube production, unlike, it does not add
Curing agent and dispersing agent.Aqueous protective coating composition A6 is obtained, the solid content for measuring aqueous protective coating composition A6 is
83%, pH value 8.4.The lumber recovery of titanium tube is 82%.
Comparative example 1
Aqueous protective coating composition is prepared according to the method for embodiment 1 and carries out titanium tube production, unlike, it does not add
Al powder.Aqueous protective coating composition D1 is obtained, the solid content for measuring aqueous protective coating composition D1 is 80%, and pH value is
8.4.The lumber recovery of titanium tube is 79%.
Comparative example 2
Aqueous protective coating composition is prepared according to the method for embodiment 1 and carries out titanium tube production, unlike, it does not add
Al2O3Powder.Aqueous protective coating composition D2 is obtained, the solid content for measuring aqueous protective coating composition D2 is 75%, and pH value is
8.4.The lumber recovery of titanium tube is 78%.
Comparative example 3
Capstan winch surface does not spray aqueous protective coating composition, directly rolls the titanium ingot after the heating 4h at 900 DEG C
Titanium tube processed.The lumber recovery for rolling titanium tube is 70%.
Embodiment 1 can be seen that each component content in aqueous protective coating composition compared with the result of embodiment 4
When in the preferred range, the protective performance of aqueous protective coating composition is more preferable, and the lumber recovery of titanium tube is higher；It will implement
Example 1 compared with the result of embodiment 5 as can be seen that when water-soluble film forming agent is aqueous epoxy resins, the aqueous protection prepared
Coating composition is more advantageous on capstan winch surface prevents titanium-steel bonding；By the result ratio of embodiment 1 and embodiment 6
Relatively as can be seen that adding curing agent and dispersing agent in aqueous protective coating composition, be conducive to film layer coating uniformly, and film layer
Adhesion is good, is not in picking, scaling phenomenon, effectively prevent occurring titanium-steel bonding in the operation of rolling, titanium tube lumber recovery is high.
By embodiment 1 as can be seen that addition Al powder, painting in aqueous protective coating composition compared with the result of comparative example 1
Alloying reaction occurs for Al powder and Ti in layer, forms TiAl3The substance of alloy-layer, the alloy-layer is very fine and close, can by titanium with
Extraneous (steel) isolation avoids the substances such as titanium and the external world, oxygen element that bonding occurs and reacts, and reaches and prevents titanium-steel bonding
Effect；By embodiment 1 as can be seen that Al is added in aqueous protective coating composition compared with the result of comparative example 22O3Powder, in temperature
When reaching 900 DEG C, coating starts to be fallen by smoulder degree, but Fe can slowly soften, at this time can in coating Al powder and
Al2O3Powder is fixed on roller-way and/or capstan winch surface, also, Fe is oxidized to Fe2O3, prevent titanium-steel while heat-insulated
Bonding；By embodiment 1 as can be seen that capstan winch surface sprays aqueous protective coating of the present invention compared with the result of comparative example 3
Composition can be effectively prevented occurs titanium-steel bonding during rolling titanium tube, substantially increases the lumber recovery of titanium tube.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (7)
1. a kind of application of aqueous protective coating composition in titanium tube production, which is characterized in that with the aqueous protective coating
The total weight of composition is 100 parts by weight meters, and the aqueous protective coating composition contains the water-soluble, film-forming of 7-12 parts by weight
Agent, the Al powder of 41-44 parts by weight, the Fe powder of 0.1-0.8 parts by weight and 42-44 parts by weight Al2O3Powder.
2. application according to claim 1, wherein the solid content of the aqueous protective coating composition is 83-95 weight
Measure %, pH 6.5-9.5.
3. application according to claim 1, wherein the water-soluble film forming agent is aqueous epoxy resins, aqueous polyurethane
One of paint, Aqueous acrylic latex's paint and Water-borne alkyd coating are a variety of.
4. application according to claim 3, wherein the water-soluble film forming agent is aqueous epoxy resins.
5. application according to claim 1, wherein the aqueous protective coating composition also contains curing agent, dispersing agent
At least one of with water.
6. application according to claim 5, wherein the aqueous protective coating composition contain curing agent, dispersing agent and
Water.
7. application according to claim 6, wherein with the total weight of the aqueous protective coating composition for 100 weight
Part meter, the content of the curing agent are 0.1-0.2 parts by weight, and the content of the dispersing agent is 0.05-0.1 parts by weight, and water contains
Amount is 0.1-0.5 parts by weight.
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| CN106085130B (en) * | 2016-07-27 | 2018-12-21 | 攀钢集团研究院有限公司 | Aqueous titanium-steel anti-stick coating and its application |
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