SU123988A1 - Protective coating to protect steel ingots and billets when heated from oxidation and decarburization - Google Patents

Protective coating to protect steel ingots and billets when heated from oxidation and decarburization

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Publication number
SU123988A1
SU123988A1 SU553952A SU553952A SU123988A1 SU 123988 A1 SU123988 A1 SU 123988A1 SU 553952 A SU553952 A SU 553952A SU 553952 A SU553952 A SU 553952A SU 123988 A1 SU123988 A1 SU 123988A1
Authority
SU
USSR - Soviet Union
Prior art keywords
heated
decarburization
billets
oxidation
protective coating
Prior art date
Application number
SU553952A
Other languages
Russian (ru)
Inventor
А.А. Александров
Ю.А. Паньков
Original Assignee
А.А. Александров
Ю.А. Паньков
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by А.А. Александров, Ю.А. Паньков filed Critical А.А. Александров
Priority to SU553952A priority Critical patent/SU123988A1/en
Application granted granted Critical
Publication of SU123988A1 publication Critical patent/SU123988A1/en

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  • Powder Metallurgy (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

Сущность метода защиты металла от утара при его нагревании состоит в том, что поверхность холодных слитков, блюмов, сл бов, заготовок или других стальных изделий покрываетс  обмазкой, котора  при нагревании металла образует в зкую пленку силикатного расплава, изолирующую металл от непосредственного соприкосновени  с окислительнон атмосферой печи, раствор ющую в себе окислы железа и не взаимодействующую с металлом. Така  химически пассивна  пленка образуетс  путем расплавлени  механической смеси тонкого помола двух, трех и более составов стекловидных сплавов, каждый из которых последовательно с нарастанием температуры нагрева образует пленку и, таким образом, смесь сохран етс  в течение всего периода нагрева стального издели .The essence of the method of protecting a metal from an otare when it is heated is that the surface of cold ingots, blooms, slabs, billets or other steel products is coated with a coating which, when heated, forms a viscous film of silicate melt insulating the metal from direct contact with oxidizing atmosphere. furnaces, dissolving iron oxides in themselves and not interacting with metal. Such a chemically passive film is formed by melting a finely ground mechanical mixture of two, three, or more vitreous alloys, each of which successively with an increase in heating temperature forms a film and, thus, the mixture is maintained during the entire heating period of the steel product.

Защитный сплав состоит из стеклообразующих окислов кремнезема 63%, глинозема 12%, окиси титана до 4%, а также из добавок извести, магнезии и в небольщих количествах щелочных окислов до 4,5%. Вход щие в состав обмазок стекловидные сплавы тонко измельчаютс  (0,05лш и тщательно перемешиваютс . На заводах-потребител х порошки замешиваютс  на воде (20-25%), при этом в качестве кле щих добавл ютс  0,3 вес. ч. часов рской глины и 3,0 вес. ч. сульфитного щелока. Полученна  таким образом водна  суспензи  обмазки наноситс  на металл окунанием при сплошном покрытии или кистью при частичном покрытии изделий. После высыхани  на воздухе обмазка прочно удерживаетс  на металле, не отслаиваетс  как при транспортировании к печам, так и при резком нагреве. При прокатке или ковке образо№ 123988The protective alloy consists of glass-forming silica oxides 63%, alumina 12%, titanium oxide up to 4%, as well as lime additives, magnesia and in small quantities of alkali oxides up to 4.5%. The glassy alloys included in the coatings are finely ground (0.05% and mixed thoroughly. In consumer plants, the powders are mixed with water (20-25%), and 0.3 parts by weight of clay and 3.0 parts by weight of sulfite liquor. The aqueous coating suspension thus obtained is applied to the metal by dipping with a continuous coating or with a brush with partial coating of the products. After drying in air, the coating is firmly held on the metal, does not flake off when transported to furnaces, so with a sharp on warming when rolling or forging image 123988

вавша с  окалина оТегко отдел етс  от гор чего металла, дает чистую от окалины поверхность и не ухудшает условий захвата металла валками. Применение предлагаемых механических смесей порошков из стекловидных сплавов позвол ет пол чать зашитные обмазки, даюшие эффективную заш,иту от окислени  и обезуглероживани  дл  различных сталей и условий нагрева.It is easy to separate from the hot metal, it gives a surface that is clean from scale, and does not worsen the conditions of metal capture by the rollers. The use of the proposed mechanical mixtures of vitreous alloys powders makes it possible to obtain protective coatings, which provide effective protection against oxidation and decarburization for various steels and heating conditions.

Предмет изобретени Subject invention

Заш,итна  обмазка дл  защиты стальных слитков и заготовок при нагреве от окислени  и обезуглероживани , состо ща  из смеси порошков тонкого помола стекловидных сплавов кремнезема, глинозема, окиси титана и окислов кальци , магни , натри  и кали , отличающа с  тем, что, с целью более полной защиты металла, в состав обмазки ввод т в виде порошка оконное стекло, а в качестве св зующих добавл ют 0,3 вес. ч. часов рской глины и 3,0 вес. ч. сульфитного ш,елока.Zash, a coating for protecting steel ingots and billets when heated against oxidation and decarburization, consisting of a mixture of powders of fine grinding of vitreous alloys of silica, alumina, titanium oxide and calcium, magnesium, sodium and potassium oxides, which is more complete protection of the metal; windowpane powder is introduced into the coating composition, and 0.3 wt. is added as a binder. hours Russian clay and 3.0 weight. h. sulfite sh, tree.

SU553952A 1956-06-07 1956-06-07 Protective coating to protect steel ingots and billets when heated from oxidation and decarburization SU123988A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU553952A SU123988A1 (en) 1956-06-07 1956-06-07 Protective coating to protect steel ingots and billets when heated from oxidation and decarburization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU553952A SU123988A1 (en) 1956-06-07 1956-06-07 Protective coating to protect steel ingots and billets when heated from oxidation and decarburization

Publications (1)

Publication Number Publication Date
SU123988A1 true SU123988A1 (en) 1958-11-30

Family

ID=48395498

Family Applications (1)

Application Number Title Priority Date Filing Date
SU553952A SU123988A1 (en) 1956-06-07 1956-06-07 Protective coating to protect steel ingots and billets when heated from oxidation and decarburization

Country Status (1)

Country Link
SU (1) SU123988A1 (en)

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