JPH0254402B2 - - Google Patents
Info
- Publication number
- JPH0254402B2 JPH0254402B2 JP6512684A JP6512684A JPH0254402B2 JP H0254402 B2 JPH0254402 B2 JP H0254402B2 JP 6512684 A JP6512684 A JP 6512684A JP 6512684 A JP6512684 A JP 6512684A JP H0254402 B2 JPH0254402 B2 JP H0254402B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- acid
- phosphate
- steel
- phosphoric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 11
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 5
- 150000007522 mineralic acids Chemical class 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000001506 calcium phosphate Substances 0.000 description 4
- 229910000389 calcium phosphate Inorganic materials 0.000 description 4
- 235000011010 calcium phosphates Nutrition 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910001386 lithium phosphate Inorganic materials 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- GVALZJMUIHGIMD-UHFFFAOYSA-H magnesium phosphate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 2
- 239000004137 magnesium phosphate Substances 0.000 description 2
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 2
- 229960002261 magnesium phosphate Drugs 0.000 description 2
- 235000010994 magnesium phosphates Nutrition 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010301 surface-oxidation reaction Methods 0.000 description 2
- ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 2
- 229910003452 thorium oxide Inorganic materials 0.000 description 2
- RIUWBIIVUYSTCN-UHFFFAOYSA-N trilithium borate Chemical compound [Li+].[Li+].[Li+].[O-]B([O-])[O-] RIUWBIIVUYSTCN-UHFFFAOYSA-N 0.000 description 2
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 2
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- -1 etc. Chemical compound 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は鋼材の加熱時における酸化の防止剤に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an oxidation inhibitor during heating of steel materials.
（従来技術）
鋼材を熱間加工するためには、加熱炉で加熱す
るが、高温時、鋼材表面での酸化作用により、多
量のスケールが発生し鋼材歩留りの低下の他、ス
ケールによる炉床の損傷や圧延工程でのスケール
の噛み込みによるスケール疵の発生等スケールに
よる数々の問題が発生する。そのため、これらを
防止する意味で鋼材表面に酸化防止剤を塗布する
ことが行なわれ、一部で効果が認められている。
これらは例えば製鋼工場で造塊された鋼塊等は一
度ストツクされ、その間冷却するので、通常耐熱
塗料（酸化防止剤）を常温乃至は300℃までの表
面温度の鋼塊に塗布し、乾燥後加熱炉に挿入し、
加熱後熱間加工の工程へ廻すものである。(Prior art) In order to hot-work steel materials, they are heated in a heating furnace, but at high temperatures, a large amount of scale is generated due to oxidation on the surface of the steel material, which not only reduces the yield of steel materials, but also causes damage to the hearth due to scale. Many problems occur due to scale, such as damage and scale flaws due to scale encroachment during the rolling process. Therefore, in order to prevent these, antioxidants are applied to the surface of steel materials, and this has been found to be effective in some cases.
For example, steel ingots made in a steel factory are once stored and cooled during that time, so a heat-resistant paint (antioxidant) is usually applied to the steel ingots whose surface temperature ranges from room temperature to 300℃, and after drying. Insert into heating furnace,
After heating, it is sent to a hot working process.
しかるに最近は省エネルギー志向になり造塊後
すぐ熱塊のまゝ均熱炉で均熱化し、すぐに圧延し
たり連続鋳造されて出て来た熱鋼材をそのまゝ圧
延機に掛けるダイレクト・ローリング方式が採用
される等により、鋼材を冷却することなく高温状
態のまゝ次工程に流す様になつた。 However, recently people have become more energy-saving-oriented, and direct rolling is in which the hot ingot is soaked in a soaking furnace immediately after ingot formation, and then immediately rolled or continuously cast, and the heated steel product is directly passed through a rolling mill. With the adoption of this method, steel materials can now be passed to the next process in a high temperature state without being cooled.
従来このような高温の鋼材に塗布する酸化防止
剤としては特開昭53―2311号や特開昭56―44716
号に示されるものがあるがその主成分がFe2O3粉
や耐火物、SiO2、金属粉でありこれらは塗着性、
酸化防止効果ともに難点がある。 Conventional antioxidants applied to such high-temperature steel materials include JP-A-53-2311 and JP-A-56-44716.
The main ingredients are Fe 2 O 3 powder, refractories, SiO 2 , and metal powder, and these have good paintability,
Both antioxidant effects have drawbacks.
（発明の目的）
本発明は前記の問題解決のためになされたもの
で高温鋼材に対して塗布が十分に行なわれしかも
塗布後1100〜1350℃の温度で長時間鋼材の表面酸
化を防止するものである。(Object of the Invention) The present invention has been made to solve the above-mentioned problem, and is capable of sufficiently coating high-temperature steel materials and preventing surface oxidation of the steel materials for a long period of time at a temperature of 1100 to 1350°C after application. It is.
（発明の構成と作用）
本発明では燐酸及び燐酸塩に硼酸又は硼酸塩と
燐酸以外の無機酸を適量組合せることにより高温
で粘着と付着力が強くかつ瞬時に厚くて緻密な塗
膜を形成出来る塗料ベヒクルを見い出した。即ち
燐酸を５〜25％、燐酸塩５〜25％、硼酸又は硼酸
塩0.5〜４％、燐酸以外の無機酸0.5〜５％これに
耐火物粉末25〜70％及び残部水を加えて良く分散
し調整せるものである。更に又、分散剤や界面活
性剤、増粘剤、沈降防止剤等は酸化防止作用を阻
害しない程度用いてもさしつかえない。(Structure and operation of the invention) In the present invention, by combining phosphoric acid and a phosphate salt with an appropriate amount of boric acid, or a boric acid salt and an inorganic acid other than phosphoric acid, a thick and dense coating film with strong adhesion and adhesion at high temperatures is instantly formed. I found a possible paint vehicle. That is, 5-25% phosphoric acid, 5-25% phosphate, 0.5-4% boric acid or borate, 0.5-5% inorganic acid other than phosphoric acid, and 25-70% refractory powder and the balance water are added and dispersed well. It can be adjusted. Furthermore, dispersants, surfactants, thickeners, antisettling agents, etc. may be used to the extent that they do not inhibit the antioxidant effect.
燐酸塩としては燐酸マグネシウム、燐酸カルシ
ウム、燐酸カリウム、燐酸リチウム等が良く燐酸
ナトリウムも短時間の酸化防止には使用しても良
い。硼酸塩としては硼酸ナトリウム、硼酸カリウ
ム、硼酸リチウム等が用いられる。無機酸として
は塩酸、弗酸、硫酸、硝酸、亜硫酸、亜硝酸等が
用いられる。 Phosphates include magnesium phosphate, calcium phosphate, potassium phosphate, lithium phosphate, etc., and sodium phosphate may also be used for short-term oxidation prevention. As the borate, sodium borate, potassium borate, lithium borate, etc. are used. As the inorganic acid, hydrochloric acid, hydrofluoric acid, sulfuric acid, nitric acid, sulfurous acid, nitrous acid, etc. are used.
更に耐火物としては酸化ジルコニウム、酸化ト
リウム等は特に良く、酸化マグネシウム、酸化ア
ルミニウム、二酸化珪素、酸化チタン、珪酸ジル
コニウム、シリカ―アルミナ系耐火物等の粉末が
良く、1200℃以上の耐熱性のものが望ましい。 Furthermore, as refractories, zirconium oxide, thorium oxide, etc. are particularly good, and powders such as magnesium oxide, aluminum oxide, silicon dioxide, titanium oxide, zirconium silicate, silica-alumina refractories, etc. are good, and those with heat resistance of 1200℃ or more are good. is desirable.
又酸化防止すべき鋼材の種類によつては黒鉛粉
を混合して用いても良い。粉末の粒度は100メツ
シユよりも細かいものが良く、出来れば径50μ以
下の細粒が半分以上あるものが望ましい。 Depending on the type of steel material to be prevented from oxidation, graphite powder may be mixed and used. The particle size of the powder should preferably be finer than 100 mesh, preferably with at least half of the particles having a diameter of 50 μm or less.
本発明の酸化防止剤は熱鋼材に対する熱間付着
性に優れ、しかも塗膜の酸化防止効果が格段に優
れているもである。これは燐酸、燐酸塩、硼酸塩
及び無機酸の組合せ配合により、塗料が高温高材
面に接触した瞬間に反応が起り、脱水、重縮合
し、粘着付着し、空隙のない安定な塗膜になり強
固に密着するためでその後の加熱によつて塗膜は
安定で酸素を透過せず強力な酸化防止効果を示す
ものである。 The antioxidant of the present invention has excellent hot adhesion to hot steel materials and has an extremely excellent anti-oxidation effect on coating films. This is a combination of phosphoric acid, phosphates, borates, and inorganic acids, which causes a reaction to occur the moment the paint comes into contact with a high-temperature, high-temperature material surface, resulting in dehydration, polycondensation, adhesive adhesion, and a stable paint film with no voids. Because of the strong adhesion, the coating film remains stable upon subsequent heating, does not allow oxygen to pass through, and exhibits a strong antioxidant effect.
勿論この塗料（酸化防止剤）は酸化チタン
（白）や酸化クロム（緑）、酸化コバルト（青）、
酸化鉄（黄、赤）、その他の耐熱顔料を加えるこ
とにより、マーキング塗料としても使えこれまで
のマーキング剤以上の性能及び効果を発揮するも
のである。 Of course, this paint (antioxidant) is made of titanium oxide (white), chromium oxide (green), cobalt oxide (blue),
By adding iron oxide (yellow, red) and other heat-resistant pigments, it can be used as a marking paint and exhibits better performance and effects than conventional marking agents.
（発明の効果）
前記のような本発明の酸化防止剤を用いること
により高温鋼材、特に連続鋳造後の直接連続圧延
等に用いることにより鋼材の表面酸化を防止して
鋼材品質の劣化を防ぐことができるものである。(Effects of the Invention) By using the antioxidant of the present invention as described above, it is possible to prevent surface oxidation of the steel material and prevent deterioration of the quality of the steel material by using it for high-temperature steel materials, especially direct continuous rolling after continuous casting. It is something that can be done.
（実施例） 次に実施例により詳述する。(Example) Next, it will be explained in detail using examples.
実施例 １
燐 酸 20部
燐酸マグネシウム 15部
硼 酸 ２部
塩 酸 ２部
水 11部
酸化ジルコニウム 50部
上記配合で塗料を調整し、これを表面温度約
1000℃の鋼材に吹付けた。瞬時に良く密着し、約
1m／ｍ位の塗膜厚となつた。これを1200℃の炉
中で２時間加熱後取り出して調べた処、塗膜は良
く接着しており、スケールの発生はみられなかつ
た。Example 1 Phosphoric acid 20 parts Magnesium phosphate 15 parts Boric acid 2 parts Hydrochloric acid 2 parts Water 11 parts Zirconium oxide 50 parts A paint was prepared with the above formulation, and the surface temperature
Sprayed onto steel material at 1000℃. Adheres well instantly, approx.
The coating thickness was approximately 1m/m. This was heated in an oven at 1200°C for 2 hours, then taken out and examined, and it was found that the coating film was well adhered and no scale was observed.
実施例 ２
燐 酸 15部
燐酸カルシウム 10部
硼酸カリウム ３部
硫 酸 １部
二酸化珪素粉末 40部
水 31部
実施例 ３
燐 酸 14部
燐酸リチウム ９部
硼酸リチウム １部
亜硝酸 ２部
酸化トリウム 44部
水 30部
上記配合でそれぞれ調整した塗料を表面温度
1100℃の熱鋼塊に吹付けた。いずれも付着性は良
好で実施例２の酸化防止剤は約1.2m／ｍの膜厚
に、実施例３の塗料は約1.5m／ｍの膜厚に塗布
出来た。Example 2 Phosphoric acid 15 parts Calcium phosphate 10 parts Potassium borate 3 parts Sulfuric acid 1 part Silicon dioxide powder 40 parts Water 31 parts Example 3 Phosphoric acid 14 parts Lithium phosphate 9 parts Lithium borate 1 part Nitrous acid 2 parts Thorium oxide 44 parts 30 parts of water
It was sprayed onto a heated steel ingot at 1100℃. Both had good adhesion, and the antioxidant of Example 2 could be applied to a film thickness of about 1.2 m/m, and the paint of Example 3 could be applied to a film thickness of about 1.5 m/m.
それぞれを1200℃の加熱炉中で約1.5時間加熱
した後炉より取出して調べた。実施例２、３共に
塗膜は殆んど変化なく、スケールの発生もみられ
なかつた。 Each was heated in a heating furnace at 1200°C for about 1.5 hours, then taken out from the furnace and examined. In both Examples 2 and 3, there was almost no change in the coating film, and no scale was observed.
実施例 ４
燐 酸 15部
燐酸カルシウム 13部
硼 酸 １部
硝 酸 1.5部
酸化チタン 10.5部
酸化ジルコニウム 35部
水 24部
比較例 Ａ
ピロリン酸ナトリウム 10％
リン酸カルシウム 10％
塩化マグネシウム ５％
珪酸カリ 10％
水 50％
チタン白 15％
ノニオン ２％
比較例 Ｂ
蛙目粘土粉 ５部
酸化チタン 20部
アルミナ粉 20部
塩化マグネシウム 0.3部
30〜50％リン酸アルミニウム水溶液 100部
実施例４、及び比較例(A)、(B)、の塗料をそれぞ
れに調整し、これを約1000℃の鋼塊の表面にそれ
ぞれ吹付けた。Example 4 Phosphoric acid 15 parts Calcium phosphate 13 parts Boric acid 1 part Nitric acid 1.5 parts Titanium oxide 10.5 parts Zirconium oxide 35 parts Water 24 parts Comparative example A Sodium pyrophosphate 10% Calcium phosphate 10% Magnesium chloride 5% Potassium silicate 10% Water 50% Titanium white 15% Nonionic 2% Comparative example B Frog's eye clay powder 5 parts Titanium oxide 20 parts Alumina powder 20 parts Magnesium chloride 0.3 parts 30-50% aluminum phosphate aqueous solution 100 parts Example 4 and Comparative example (A) , (B) were prepared and sprayed onto the surface of a steel ingot at approximately 1000°C.
これをすぐに1200℃の電気炉中に入れて２時間
加熱した。 This was immediately placed in an electric furnace at 1200°C and heated for 2 hours.
吹付け時に観察したところ、３種の塗料を同じ
時間だけ吹付けたのに、比較例(A)は1000℃では付
着性が悪く、ほとんど付着しない状態であつた。
又、比較例(B)も付着性が悪く、極く薄く付着した
のみであつた。 Observation during spraying revealed that although the three types of paint were sprayed for the same amount of time, Comparative Example (A) had poor adhesion at 1000°C, with almost no adhesion.
Comparative Example (B) also had poor adhesion, with only a very thin layer of adhesion.
実施例４は同じ吹付け時間でも良く付着し、約
1.5m／ｍ程の厚さに塗布出来た。炉内での加熱
では比較例(A)(B)は、５〜10分程でスケールのため
か塗膜は消えた様になり識別出来なくなつた。２
時間加熱後にはスケールが全面に発生し、約２〜
3m／ｍの厚さになつていた。本発明の実施例４
の塗膜は1200℃に２時間加熱後も状態は殆んど変
わらず、スケールも発生していなかつた。 Example 4 adhered well even with the same spraying time, and approximately
I was able to apply it to a thickness of about 1.5m/m. When heated in a furnace, the coating films of Comparative Examples (A) and (B) seemed to disappear in about 5 to 10 minutes, probably due to scale, and became unrecognizable. 2
After heating for a period of time, scales appear on the entire surface, and the
It was 3m/m thick. Example 4 of the present invention
The condition of the coating film remained almost unchanged even after heating at 1200°C for 2 hours, and no scale was generated.
Claims (1)
％、硼酸又は硼酸塩0.5〜４％、燐酸以外の無機
酸0.5〜５％、耐火物粉末25〜70％及び残部水よ
りなる高温鋼材面への塗着性に優れた酸化防止
剤。1 Ingredients: 5-25% phosphoric acid, 5-25% phosphate
%, boric acid or borate 0.5 to 4%, inorganic acid other than phosphoric acid 0.5 to 5%, refractory powder 25 to 70%, and the balance water.An antioxidant with excellent adhesion to high temperature steel surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6512684A JPS60208412A (en) | 1984-04-03 | 1984-04-03 | Antioxidant for steel material at high temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6512684A JPS60208412A (en) | 1984-04-03 | 1984-04-03 | Antioxidant for steel material at high temperature |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60208412A JPS60208412A (en) | 1985-10-21 |
| JPH0254402B2 true JPH0254402B2 (en) | 1990-11-21 |
Family
ID=13277865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6512684A Granted JPS60208412A (en) | 1984-04-03 | 1984-04-03 | Antioxidant for steel material at high temperature |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60208412A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5344505A (en) * | 1993-08-16 | 1994-09-06 | Betz Laboratories, Inc. | Non-chromium passivation method and composition for galvanized metal surfaces |
| CA2271730A1 (en) * | 1996-11-27 | 1998-06-04 | Henkel Corporation | Aqueous composition and process for preparing metal substrate for cold forming |
-
1984
- 1984-04-03 JP JP6512684A patent/JPS60208412A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60208412A (en) | 1985-10-21 |
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