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Method for joint sealing with lead-based molten material
Method for joint sealing with lead-based molten material
IPC classes for russian patent Method for joint sealing with lead-based molten material (RU 2284400):
E04G23/02 - Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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Method involves drying joint and filling thereof with dry non-combustible materials before lead-based molten material pouring in joint; filling the joint with lead-based molten material, which is supplied through pouring channel system made of molding material, wherein the molding material provides predetermined geometry of sealed joint. The molten material is supplied as continuous jet. Joint to be sealed may be located in vertical or horizontal planes or in plane inclined at 0-90° angle with respect to horizontal plane. The lead-based molten material may be reused for repairing work performing.
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FIELD: repairing, for instance filling cracks, restoring, altering, enlarging, particularly for repairing monuments, museum pieces and applied and decorative art pieces.

SUBSTANCE: method involves drying joint and filling thereof with dry non-combustible materials before lead-based molten material pouring in joint; filling the joint with lead-based molten material, which is supplied through pouring channel system made of molding material, wherein the molding material provides predetermined geometry of sealed joint. The molten material is supplied as continuous jet. Joint to be sealed may be located in vertical or horizontal planes or in plane inclined at 0-90° angle with respect to horizontal plane. The lead-based molten material may be reused for repairing work performing.

EFFECT: reduced labor inputs and material consumption, increased environmental safety and joint sealing reliability, elimination of additional mechanical or chemical treatment.

17 cl, 2 dwg

 

The invention relates to the restoration and repair and repair and construction work on the monuments of monumental sculpture and architecture, small sculptural and architectural forms, Museum objects and works of decorative art, namely, to seal the seams on the specified object.

Known method of sealing a seam of pavement rack that includes a thorough cleansing from dust, dirt, oil stains using metal brushes, drawing on each of the joined surface ciocalteau composition, immediately after applying the specified composition docking space between the joined surfaces are filled with mortar based on cement (RU2047703 C1, MPK E 04 1/04, 10.11.1995, example 4) /1/.

Described in /1/ the method adopted for the prototype.

However, the method described in the source /1/, provides a thorough preparation of the surface before sealing, manufacturing Ticonderoga composition should be carried out under strict control, and the resulting composition has a limited shelf life and require special storage conditions. In addition, the materials used in the known method cannot be reused.

The objective of the invention is to develop a low-overhead, materials.because, eco-friendly way to GE the cross seam, enabling a reliable sealing of the seam without additional mechanical or chemical treatment resealable seats, to form a seam configuration on surfaces that form an angle between 0° to 180° with the horizontal plane, sealing it to a predetermined depth.

This object is achieved by a method of sealing a seam melt lead-based, by pouring the melt into the joint through a system of Gating channels, made of molding material.

The sealing seam is carried out to a predetermined depth, for example to a depth of 5-250 mm

If necessary, in particular, when the sealing seam, the depth of which is considerably greater than its width, before pouring the melt seam dried and put in misonoo space dry non-flammable materials to conserve melt lead-based.

The pouring of the melt is carried out through the Gating channels, equipped with Gating bowls.

As the molding material used refractory mass on the basis of kaolin clay.

Form the seam of a given configuration.

It can be convex, concave, having a complex topography.

The seam may be located on the vertical plane.

The seam may be located on a horizontal plane.

The seam may be located on the surface, forming an angle between 0° to 18° with the horizontal plane.

This method allows you to seal narrow joints width 2-5 mm wide seams of a width exceeding 5 mm

The molten lead-based is obtained by loading dry charge lead or alloy-based pre-calcined metal crucible furnace download small portions, providing uniform heating of the charge, then the charge is heated up to 320-350°C.

Pouring molten lead into the seam start from the bottom Gating of the channel.

Pouring molten lead into the seam carried out in a continuous stream.

After solidification of the melt on the basis of lead in the seam if necessary, conduct in the particular case of the striking surface of the seam.

Then, the surface of the seam if necessary tone.

Pouring molten lead-based you can make the seam underneath the plinth of the monument, with the pouring of the melt into the seam passes through the upper channel Gating system.

The molten lead-based use again.

As the melt based on the use of lead lead.

As the melt based on the use of lead melt on its basis, not containing antimony.

Using the proposed method melt lead-based allows you to get a tight seam with corrosion resistance, adaptability, the ability t is the planning, as well as the possibility of repair without cost material by procchance seam.

Lead and alloys on its basis be tinted in a wide range of colors, which is important when carrying out restoration works.

The claimed method is environmentally friendly, as the molten lead-based liquid and solid state is multi-material, not requiring disposal and material Gating channels - kaolin clay is also reusable material that does not require disposal.

Holding pouring molten lead through a system of Gating channels allows the fill resealable seam with a minimum flow rate of the melt, to regulate the feed rate of the melt into the joint and reduce the formation of slag on the weld surface.

In addition, when performing system Gating channels seam fill the molding material so that after pouring was formed seam desired configuration.

The method is illustrated by figure 1 and figure 2. Figure 1 shows the seam sealing molten lead-based; figure 2 - seam sealing under the plinth restored object molten lead-based, with 1 terminal block, 2 - melt lead-based, 3 - Gating channels, 4 - pedestal restored object, 5 - Gating bowl.

Example 1 illustrates the sealing of joints is acceptable depth of molten lead-based, located on the vertical and horizontal planes restored object comprising an angle between 0° to 180° with the horizontal plane of the restored object (see figure 1).

Before seam sealing molten lead-based from misonoo space, subject to sealing, remove all old loose, drop-insert (termination), earth, moss and the like.

If necessary, the joints and dried produce filling in misonoo space dry non-combustible materials to ensure a minimum flow rate of molten lead.

Create a system of Gating channels for delivery of molten lead-based in resealable seam.

For this seam and adjacent parts of the surface sformovat refractory mass on the basis of kaolin clay and are in the form of Gating channels and vapory. When filling the vertical joints is preferable to use Gating bowl.

The molten lead-based is obtained by loading dry charge lead or alloy-based pre-calcined metal crucible furnace download small portions, providing uniform heating of the charge in the crucible.

Then, using a blowtorch or a gas burner, the mixture is heated to 320-350°C.

Fill start from the bottom Gating of the channel.

Fill races the lava lead-based conduct continuous stream.

After casting, Gating system are removed.

If necessary, the surface of the sealed seam area to remove excess lead or alloy based on it.

Depending on the requirements of the joint surface, and if it is not possible to form it by casting (i.e. by adding the seam configuration using a molding material, in which the Gating system of channels), then the surface of the weld prochekayut special tool.

Then the seam tone.

Example 2 illustrates the sealing of the molten lead-based joints under the plinth restored object (see figure 2).

The space under the plinth is cleaned with compressed air, dry, create Gating the channel system of the refractory mass on the basis of kaolin clay and foundry set the bowl near the top of channel Gating system.

Pouring molten lead-based conduct continuous stream.

After casting, Gating system are removed.

1. Method of sealing a seam when carrying out restoration work on the monuments of sculpture, characterized by the fact that before pouring the molten lead-based seam dried and put in misonoo space dry non-flammable materials, seam sealing is carried out by pouring the melt into the joint through a system of Gating channels, made of the molding m is material, providing a holding sealing seam weld formation of a given configuration, with the pouring of the melt is carried out in a continuous stream.

2. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to claim 1, characterized in that the sealing seam melt lead-based hold to a depth of 5-250 mm

3. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 and 2, characterized in that the Gating channels supplied with Gating bowls.

4. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 3, characterized in that the molding material used refractory mass on the basis of kaolin clay.

5. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 4, characterized in that the conducting sealing bead located on a vertical surface.

6. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 4, characterized in that the conducting sealing bead located on a horizontal surface.

7. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 4, characterized in that the spend is hermeticaly seam, located on the surface, forming an angle between 0 and 90° horizontal surface.

8. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 7, characterized in that hold the sealing seam has a width of 2-5 mm

9. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 8, characterized in that hold the sealing seam has a width of more than 5 mm

10. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 9, characterized in that conduct seam sealing molten lead-based, which is obtained by loading dry charge lead or alloy-based pre-calcined metal crucible in small portions and further heating the mixture up to 320-350°C.

11. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to claim 5, characterized in that the pouring of molten lead into the seam start from the bottom Gating of the channel.

12. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 11, characterized in that after the pouring of molten lead into the joint conduct the strike of the seam.

13. Method of sealing a seam when conducting restaur the traditional work on the monuments of sculpture at para.12, characterized in that after procchance seam tone.

14. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 11, characterized in that the pouring of molten lead-based exercise in the seam underneath the plinth of the monument, with the pouring of the melt into the seam passes through the upper channel Gating system.

15. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 14, characterized in that the sealing seam is carried out by melt lead-based, recycled.

16. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 15, characterized in that the sealing seam is carried out by melt lead.

17. Method of sealing a seam when carrying out restoration work on the monuments of sculpture according to any one of claims 1 to 15, characterized in that the sealing seam is carried out by melt lead-based, does not contain antimony.

 
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