CN109161665A - The interleaving agent and its application method of red rust are removed in a kind of silicon containing steel high temperature surface - Google Patents
The interleaving agent and its application method of red rust are removed in a kind of silicon containing steel high temperature surface Download PDFInfo
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- CN109161665A CN109161665A CN201811139477.2A CN201811139477A CN109161665A CN 109161665 A CN109161665 A CN 109161665A CN 201811139477 A CN201811139477 A CN 201811139477A CN 109161665 A CN109161665 A CN 109161665A
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- interleaving agent
- red rust
- high temperature
- silicon containing
- steel
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention relates to a kind of silicon containing steel high temperature surfaces to go red rust interleaving agent and its application, its component and weight percent are: vermiculite power 10 ~ 30%, nanometer magnesium silicate 1 ~ 5%, nano chromium oxide 1 ~ 5%, mullite 25 ~ 45%, flyash 10 ~ 35%, red bauxite 5% ~ 25%, tapioca 0.5 ~ 1%, water is diluent, and the water of addition is the 50 ~ 70% of aforementioned total weight；Interleaving agent of the granularity less than 100 μm is made by mechanical lapping mixing method in above-mentioned each component；This high-temperature oxydation interleaving agent is suitable for high temperature protection of the siliceous steel billet in heating in 1000 ~ 1300 DEG C/1 ~ 10 hour; it is sprayed on room temperature billet surface; interleaving agent is with a thickness of 100 ~ 400 μm; it forms glass base protective film in temperature-rise period; interleaving agent can remove interleaving agent and iron oxide on surface of billet steel skin after heating, with tap water or low pressure water flushing completely, reduce hot rolling material surface red rust area; stocking surface quality is improved, use cost is low.
Description
Technical field
The present invention relates to a kind of interleaving agents, and in particular to interleaving agent and its application of red rust are gone in a kind of silicon containing steel high temperature surface
Method.
Background technique
In the heating process of steel billet before the rolling, violent oxidation reaction occurs in high temperature for surface, and oxidation is caused to burn
Damage, reduces the lumber recovery of steel, aoxidizes the fayalite fusing point formed by element silicon for silicon containing steel, in iron scale
Low, strong with matrix adhesive force, high-pressure water descaling is difficult to remove completely, and laminar flow of water cooling procedure in downstream will form large area in addition
Red rust directly affects the surface quality of product, is a technical problem for perplexing enterprise.
Summary of the invention
In place of overcoming the above deficiencies in the existing technologies, it is high that the purpose of the present invention is to provide a kind of silicon containing steels
The interleaving agent of red rust is removed on warm surface, it can play the role of alleviating fayalite formation speed in silicon containing steel iron scale, reduces
The surface red rust area of working steel products, while playing the role of high temperature protection to steel again, reduce or prevent its high-temperature oxydation.
It is another object of the present invention to provide the application methods that the interleaving agent of red rust is removed on a kind of silicon containing steel high temperature surface.
To achieve the above object, The technical solution adopted by the invention is as follows: a kind of silicon containing steel high temperature surface goes red rust to be isolated
Agent is made of the raw material of following weight percents: vermiculite power 10 ~ 30%, nanometer magnesium silicate 1 ~ 5%, nano chromium oxide 1 ~ 5%, not
Come mountain flour 25 ~ 45%, flyash 10 ~ 35%, red bauxite 5% ~ 25%, tapioca 0.5 ~ 1%, wherein nanometer magnesium silicate and nano oxygen
Changing chromium granularity is 100 ~ 500nm, and water is diluent, and the water of addition is the 50 ~ 70% of above-mentioned total weight, and above-mentioned each component is logical
It crosses mechanical lapping mixing method high temperature surface of the granularity less than 100 μm is made and remove red rust interleaving agent.
Wherein interleaving agent forms glass ceramics structure using vermiculite power, flyash and red bauxite as base-material at high temperature
Matrix；The refractory materials such as mullite powder are added, to reduce erosion of the iron oxide to interleaving agent under hot conditions, and reduce siliceous oxygen
The viscosity for changing iron, improves the high temperature resistance of interleaving agent；Suspending agent of the tapioca as this interleaving agent is added, guarantees interleaving agent
Not deposit clumps for a long time；Nanometer magnesium silicate, nano chromium oxide is added, is mentioned while reducing the sintering softening temperature of interleaving agent
The wetting property of high isolation layer and matrix changes the thermal expansion coefficient of high temperature surface layer compound, reduces iron scale adhesiveness
Can, promote the removing of iron scale, to reduce downstream red rust area, reach the high temperature protection proposed by the present invention carried out to steel,
It removes red rust and improves the purpose of the surface quality of product.
The high temperature surface goes red rust interleaving agent to protect applied to silicon containing steel in heating in 1000 ~ 1300 DEG C/1 ~ 10 hour,
Interleaving agent room temperature flash-off time is 0.5~1 hour, forms the glass barrier layer with a thickness of 100 ~ 400 μm under high temperature, prevents oxygen
Diffusion of the atom to steel matrix not only reduces oxidization burning loss, also slows down the generation of silicon containing steel surface fayalite, and high temperature surface is gone
Red rust interleaving agent Automatic-falling after heating exposes bright metallic matrix, downstream caused by reducing because of iron sheet residual
The red rust area on steel rolling surface, improves product surface quality.
Compared with prior art, the invention has the following advantages:
1, sandblasting need not be carried out to protected steel surface or polishing pre-processes, the mode of spraying is taken equably to spray, turned
It is not fallen off in fortune, and does not influence application effect.
2, interleaving agent without predrying (containing spontaneously dry and prebake), can on-line spray enter high temperature stove heating, pole immediately
Original process are changed less, and coating equipment small investment, use cost is low, can easily be used cooperatively with heating steel billet tinuous production.
3, silicon containing steel high temperature of the invention goes red rust interleaving agent protection temperature high, be suitable for silicon containing steel 1000 ~ 1300 DEG C/
It is protected when heating in 1 ~ 10 hour, can effectively reduce oxidization burning loss, inhibit fayalite to generate, reduce downstream bar hot rolling surface red rust face
Product.
4, the bonding force that iron scale and steel matrix can be weakened, through high-pressure water descaling, iron scale and interleaving agent after coming out of the stove
Layer can be completely fallen off；Surface red rust area after hot rolling is greatly decreased 50% or more, effectively improves product qualification rate and product matter
Amount.
5, interleaving agent thermal coefficient of the present invention is high, does not extend the heating steel billet time, to steel billet without harmful erosion；Its produce and
Use equal no pollution to the environment.
6, interleaving agent raw material of the present invention is based on our country, and from a wealth of sources, production cost is low.
Specific embodiment
Elaborate below to the embodiment of the present invention: the present embodiment under the premise of the technical scheme of the present invention into
Row is implemented, and the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following realities
Apply example.
Embodiment 1
By vermiculite power 15%, nanometer magnesium silicate 2%, nano chromium oxide 1%, mullite powder 30%, flyash 28%, red bauxite 23%, wood
The proportional arrangement interleaving agent of sweet potato starch 1%, wherein the granularity of nanometer magnesium silicate and nano chromium oxide is 400nm, the water of addition
It is the 60% of above-mentioned total weight, above-mentioned each component is mixed in proportion, is uniformly mixed using mechanical lapping mixing method, obtains this hair
Red rust interleaving agent A is removed on bright high temperature surface.
Red rust interleaving agent A is gone to be sprayed on screw-thread steel (20MnSi) the square billet surface of room temperature on high temperature surface, to be isolated dose of A is normal
Warm flash-off time is 35 minutes, forms 150 μm of thickness of separation layer, does not spray screw-thread steel (20MnSi) square billet of spraying and
Screw-thread steel (20MnSi) square billet enter furnace simultaneously, into heating furnace 1100 DEG C of processing realization surfacecti proteons, spray the spiral shell of interleaving agent
Line steel (20MnSi) square billet exposes bright metallic matrix in rear surface separation layer Automatic-falling of coming out of the stove, and does not spray interleaving agent
Screw-thread steel (20MnSi) square billet compare, 90% or more screw-thread steel stocking surface red rust area can be reduced.
Embodiment 2
By vermiculite power 28%, nanometer magnesium silicate 4%, nano chromium oxide 2%, mullite powder 35%, flyash 15%, red bauxite 15.2%,
The proportional arrangement interleaving agent of tapioca 0.8%；Wherein the granularity of nanometer magnesium silicate and nano chromium oxide is 200nm, and water is dilute
Agent is released, the water of addition is the 70% of above-mentioned total weight.Above-mentioned each component is mixed in proportion, it is mixed using mechanical lapping mixing method
It closes uniformly, obtains high temperature surface of the present invention and remove red rust interleaving agent B.
Red rust interleaving agent B is gone to be sprayed on siliceous (1.5%) the automobile steel slab surface of room temperature on high temperature surface, it is to be isolated
Agent B room temperature flash-off time is 42 minutes, 300 μm of thickness of separation layer is formed, by siliceous (1.5%) the automobile steel slab of spraying
Siliceous (1.5%) the automobile steel slab that does not spray while entering furnace, realizes surfacecti proteons, spray into 1230 DEG C of processing of heating furnace
Siliceous (1.5%) the automobile steel slab of separant coating exposes bright Metal Substrate in rear surface separation layer Automatic-falling of coming out of the stove
Body is compared with siliceous (1.5%) the automobile steel slab for not spraying interleaving agent, can reduce 80% or more stocking surface red rust area.
Embodiment 3
By vermiculite power 25%, nanometer magnesium silicate 1.5%, nano chromium oxide 3%, mullite powder 25%, flyash 25%, red bauxite 20%,
The proportional arrangement interleaving agent of tapioca 0.5%；Wherein the granularity of nanometer magnesium silicate and nano chromium oxide is 100nm, and water is dilute
Agent is released, the water of addition is the 65% of above-mentioned total weight.Above-mentioned each material is mixed in proportion, using mechanical lapping mixing method
It is uniformly mixed, obtains high temperature surface of the present invention and remove red rust interleaving agent C.
Red rust interleaving agent C is gone to be sprayed on the spring steel 38Si7 square billet surface of room temperature, to be isolated dose of C room temperature on high temperature surface
Flash-off time is 55 minutes, 400 μm of thickness of separation layer is formed, by the spring steel 38Si7 square billet of spraying and the spring not sprayed
Steel 38Si7 square billet enters furnace simultaneously, realizes surfacecti proteon into 1090 DEG C of processing of heating furnace, sprays the spring steel 38Si7 of interleaving agent
Square billet exposes bright metallic matrix in rear surface separation layer Automatic-falling of coming out of the stove, and does not spray the spring steel 38Si7 of interleaving agent
Square billet is compared, and 95% or more screw-thread steel stocking surface red rust area can be reduced.
Embodiment 4
By vermiculite power 10%, nanometer magnesium silicate 2.5%, nano chromium oxide 3.7%, mullite powder 40%, flyash 35%, red bauxite
8%, the proportional arrangement interleaving agent of tapioca 0.8%；Wherein the granularity of nanometer magnesium silicate is the granularity of 500nm and nano chromium oxide
For 300nm, water is diluent, and the water of addition is the 60% of above-mentioned total weight, above-mentioned each component is mixed in proportion, using machine
Tool ground and mixed method is uniformly mixed, and is obtained high temperature surface of the present invention and is removed red rust interleaving agent D.
Red rust interleaving agent D is gone to be sprayed on the spring steel 60Si2MnA square billet surface of room temperature on high temperature surface, to be isolated dose of D is normal
Warm flash-off time is 30 minutes, form 100 μm of thickness of separation layer, is not sprayed the spring steel 60Si2MnA square billet of spraying and
Spring steel 60Si2MnA square billet enters furnace simultaneously, realizes surfacecti proteon into 1050 DEG C of processing of heating furnace, sprays the spring of interleaving agent
Steel 60Si2MnA square billet exposes bright metallic matrix in rear surface separation layer Automatic-falling of coming out of the stove, and does not spray interleaving agent
Spring steel 60Si2MnA square billet is compared, and 95% or more screw-thread steel stocking surface red rust area can be reduced.
Above-described embodiment is only the preferred embodiment of the present invention, should not be taken to limit protection scope of the present invention, but
It is all in body design thought of the invention and mentally make have no the change of essential meaning or polishing, the technology solved
Problem is still consistent with the present invention, should all be included within protection scope of the present invention.
Claims (3)
1. the interleaving agent that red rust is removed on a kind of silicon containing steel high temperature surface, it is characterised in that: its component and weight percent are: vermiculite power
10 ~ 30%, nanometer magnesium silicate 1 ~ 5%, nano chromium oxide 1 ~ 5%, mullite powder 25 ~ 45%, flyash 10 ~ 35%, red bauxite 5% ~
25%, tapioca 0.5 ~ 1%, the water of addition are the 50 ~ 70% of above-mentioned total weight, and above-mentioned each component is mixed using mechanical lapping
Method is uniformly mixed and high temperature surface of the granularity less than 100 μm is made removes red rust interleaving agent.
2. the interleaving agent of red rust is removed on a kind of silicon containing steel high temperature surface according to claim 1, it is characterised in that: described to receive
The granularity of rice magnesium silicate is 100 ~ 500nm, and the granularity of nano chromium oxide is 100 ~ 500nm.
3. the application method of the interleaving agent of red rust is removed on a kind of silicon containing steel high temperature surface according to claim 1: its feature exists
In: the high temperature surface goes red rust interleaving agent to be applied to protection of the silicon containing steel in heating in 1000 ~ 1300 DEG C/1 ~ 10 hour when,
Interleaving agent Automatic-falling after heating, exposes bright metallic matrix, and the interleaving agent is sprayed on the steel matrix of room temperature
Surface, interleaving agent room temperature flash-off time are 0.5~1 hour, and interleaving agent passes through interleaving agent high-temperature process with a thickness of 100 ~ 400 μm
Stocking surface red rust area afterwards significantly reduces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139477.2A CN109161665A (en) | 2018-09-28 | 2018-09-28 | The interleaving agent and its application method of red rust are removed in a kind of silicon containing steel high temperature surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139477.2A CN109161665A (en) | 2018-09-28 | 2018-09-28 | The interleaving agent and its application method of red rust are removed in a kind of silicon containing steel high temperature surface |
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| CN109161665A true CN109161665A (en) | 2019-01-08 |
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| CN201811139477.2A Pending CN109161665A (en) | 2018-09-28 | 2018-09-28 | The interleaving agent and its application method of red rust are removed in a kind of silicon containing steel high temperature surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996344A (en) * | 2020-08-26 | 2020-11-27 | 南安市北创卫浴有限公司 | High-temperature surface carbon-preserving separant for high-carbon steel and carbon-preserving method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107903674A (en) * | 2017-12-08 | 2018-04-13 | 福建省鑫富达铝业有限公司 | Silicon containing steel high temperature surface removes red rust interleaving agent and goes red rust method |
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- 2018-09-28 CN CN201811139477.2A patent/CN109161665A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107903674A (en) * | 2017-12-08 | 2018-04-13 | 福建省鑫富达铝业有限公司 | Silicon containing steel high temperature surface removes red rust interleaving agent and goes red rust method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996344A (en) * | 2020-08-26 | 2020-11-27 | 南安市北创卫浴有限公司 | High-temperature surface carbon-preserving separant for high-carbon steel and carbon-preserving method |
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