RU99123784A - METHOD FOR REPAIR OF PARTS WITH OPEN SURFACE DEFECTS - Google Patents

METHOD FOR REPAIR OF PARTS WITH OPEN SURFACE DEFECTS

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Publication number
RU99123784A
RU99123784A RU99123784/02A RU99123784A RU99123784A RU 99123784 A RU99123784 A RU 99123784A RU 99123784/02 A RU99123784/02 A RU 99123784/02A RU 99123784 A RU99123784 A RU 99123784A RU 99123784 A RU99123784 A RU 99123784A
Authority
RU
Russia
Prior art keywords
fence
defect
exothermic mixture
enclosure
metal
Prior art date
Application number
RU99123784/02A
Other languages
Russian (ru)
Other versions
RU2182063C2 (en
Inventor
Юрий Васильевич Казаков
Виталий Алексеевич Корнилов
Наталья Николаевна Кувшинова
Original Assignee
Ао "Автоваз"
Filing date
Publication date
Application filed by Ао "Автоваз" filed Critical Ао "Автоваз"
Priority to RU99123784/02A priority Critical patent/RU2182063C2/en
Priority claimed from RU99123784/02A external-priority patent/RU2182063C2/en
Publication of RU99123784A publication Critical patent/RU99123784A/en
Application granted granted Critical
Publication of RU2182063C2 publication Critical patent/RU2182063C2/en

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Claims (3)

1. Способ ремонта деталей с открытыми поверхностными дефектами, при котором вокруг дефекта устанавливают ограждение, помещают в него экзотермическую смесь, зажигают ее, заливают дефект образовавшимся расплавленным металлом, а после затвердевания металла ограждение и образовавшийся шлак удаляют, отличающийся тем, что после установки ограждения на поверхность обрабатываемой детали контур ограждения на этой поверхности очерчивают термокарандашом, по следу которого определяют температуру подогрева зоны дефекта, ограждение снимают, устанавливают на подложку, помещают внутрь ограждения экзотермическую смесь со связующим веществом, утрамбовывают и сушат до затвердевания связующего вещества, зону дефекта подогревают до 200 - 500oС, устанавливают на зону дефекта по очерченному контуру ограждение с экзотермической смесью, на ограждение закрепляют выпуклую крышку с центральным отверстием и поджигают смесь через отверстие в крышке.1. A method of repairing parts with open surface defects, in which a fence is installed around the defect, an exothermic mixture is placed in it, ignited, the defect is poured with molten metal, and after the metal has hardened, the fence and the resulting slag are removed, characterized in that after the installation of the fence on the surface of the workpiece the contour of the fence on this surface is outlined with a thermal pencil, along the trace of which the temperature of the defect zone is determined, the fence is removed, poured onto the substrate, placed inside the enclosure an exothermic mixture with a binder, tamped and dried until the binder solidifies, the defect zone is heated to 200 - 500 o C, the enclosure with the exothermic mixture is installed on the defect zone along the contour, the convex cover with the central is fixed to the enclosure hole and set fire to the mixture through the hole in the lid. 2. Способ по п.1, отличающийся тем, что применяют ограждение, имеющее в поперечном сечении контур в форме эллипса, полуоси которого принимают равным полуосям эллипса, описанного вокруг дефекта, а высоту ограждения определяют по формуле:
Figure 00000001

где Vg - объем полости дефекта, см3;
Ρсм; Ρмет- соответственно плотность экзотермической смеси и плотность образующегося при ее горении металла, г/см3;
а; b - соответственно большая и малая полуоси эллипса, описанного вокруг дефекта, см;
n - количество металла, выделяющего при сгорании данной экзотермической смеси, %.2. The method according to claim 1, characterized in that a fence is used that has a cross-section in the form of an ellipse, the half-axes of which are equal to the half-axes of the ellipse described around the defect, and the height of the fence is determined by the formula:
Figure 00000001

where V g is the volume of the cavity of the defect, cm 3 ;
Ρ cm ; Ρ met - respectively, the density of the exothermic mixture and the density of the metal formed during its combustion, g / cm 3 ;
a; b - respectively, the major and minor axes of the ellipse described around the defect, cm;
n is the amount of metal released during the combustion of this exothermic mixture,%. 3. Способ по п.1, отличающийся тем, что ограждение может быть выполнено в виде нескольких колец, закрепленных друг на друге, а экзотермическая смесь со связующим веществом из жидкого стекла или спиртового раствора поливилбутираля помещают внутрь каждого кольца. 3. The method according to claim 1, characterized in that the fence can be made in the form of several rings fixed to each other, and an exothermic mixture with a binder of liquid glass or an alcoholic solution of polyvilbutyral is placed inside each ring.
RU99123784/02A 1999-11-11 1999-11-11 Process for repairing parts with open surface flaws RU2182063C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU99123784/02A RU2182063C2 (en) 1999-11-11 1999-11-11 Process for repairing parts with open surface flaws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU99123784/02A RU2182063C2 (en) 1999-11-11 1999-11-11 Process for repairing parts with open surface flaws

Publications (2)

Publication Number Publication Date
RU99123784A true RU99123784A (en) 2001-09-20
RU2182063C2 RU2182063C2 (en) 2002-05-10

Family

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Family Applications (1)

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RU99123784/02A RU2182063C2 (en) 1999-11-11 1999-11-11 Process for repairing parts with open surface flaws

Country Status (1)

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RU (1) RU2182063C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2244614C1 (en) * 2003-08-07 2005-01-20 Тольяттинский государственный университет Charge for thermit surfacing
RU2446932C2 (en) * 2010-02-18 2012-04-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уральский государственный университет путей сообщения" (УрГУПС) Method of repairing metal structures with surface cracks and device to this end
RU2477208C2 (en) * 2011-04-07 2013-03-10 Государственное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" Device for repairing parts with exposed surface defects
RU2693252C1 (en) * 2018-05-28 2019-07-01 Общество с ограниченной ответственностью "ЮниТранс" Repair method of operational damages of railroad head rolling surface

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU115804A1 (en) * 1957-11-11 1957-11-30 Б.Ф. Браун The method of thermite metal welding
FR2151524A5 (en) * 1971-09-01 1973-04-20 Ruggieri Ets
SU1727969A1 (en) * 1989-12-06 1992-04-23 Научно-производственное объединение по механизации, роботизации труда и совершенствованию ремонтного обеспечения на предприятиях черной металлургии "Черметмеханизация" Method of repair of articles with external defects of surface

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