HEAT TREATMENT SYSTEM

Abstract

The invention relates to a heat treatment system, in particular a roller hearth furnace. The heat treatment system comprises a useful space having a first area with a width B1 and a second area with a width B2, wherein the rollers are arranged in the first area, and wherein width B2 is greater than width B1. In this context, width is understood to be the dimension that is transverse to the through-flow direction of the furnace. Width B1 is thereby measured such that the rollers have a length at which, even when there is a temperature in the furnace for the heat treatment of metal components, they still have such a mechanical stability, for example, that their bending remains within acceptable tolerances, even in the loaded state. The second area of the useful space extends above the first area of the useful space, with the greater width B2, such that components with a maximum width B2, greater than width B1, can also be heat treated.

Claims

1. A heat treatment system, comprising rollers for the through flow of a component through the heat treatment system, characterized in that the heat treatment system comprises a useful space with a first area with a width B1 and a second area with a width B2, wherein in the first area the rollers are arranged and wherein the width B2 is larger than the width B1, wherein several heat sources are arranged in the second area of the useful space of the heat treatment system, wherein the several heat sources are arranged one after another in the furnace through flow direction.

2. The heat treatment system according to claim 1, characterized in that the heat treatment system comprises a goods carrier, wherein the goods carrier includes a first area and a second area with a width W1 and a third area with a width W2, wherein the width W1 is smaller than the width B1 of the first area of the useful space and the width W2 is smaller than the width B2 of the second area of the useful space and wherein the first area of the goods carrier is in contact with at least one of the rollers.

3. The heat treatment system according to claim 2, characterized in that the goods carrier comprises a first area with which the goods carrier is in contact with at least one roller, a second area for height adjustment and a third area for laying the component.

4. The heat treatment system according to claim 3, characterized in that the third area of the goods carrier contains ceramic materials.

5. The heat treatment system according to claim 1, characterized in that the heat treatment system further comprises at least one heat source in the first area.

6. The heat treatment system according to claim 5, characterized in that the heat source is a gas burner with flame pipes.

7. The heat treatment system according to claim 5, characterized in that the plurality of heat sources alternatingly protrude from the lateral limiting walls of the useful space into the second area of the useful space.

8. The heat treatment system according to claim 1, characterized in that at least one roller comprises a ceramic material.

9. The heat treatment system according to claim 1, characterized in that the heat treatment system comprises an inflow and outflow sluice.

Description

FIGURES

[0027] FIG. 1 shows a cross-section of a heat treatment system according to the invention.

[0028] In FIG. 1 a cross-section of a heat treatment system 100 according to the invention is shown. The heat treatment system 100 consists of rollers 101 for the through flow of a component 150 to be heat treated by the heat treatment system. Furthermore, the heat treatment system 100 consists of a useful space 110 with a first area 111 with a Width B1 and a second area 112 with a width B2, wherein the roller 101 is arranged in the first area 111 and wherein the width B2 is larger than width B1. Width B1 can, for example, be 2,500 mm, while width B2, for example, can be 3,500 mm. The heat treatment system 100 furthermore consists of a goods carrier 120, wherein the goods carrier 120 consists of a first area 121 and a second area 122 with a width W1 and a third area 123 with a width W2, wherein width W1 is smaller than width B1 of the first area 111 of the useful space 110 and a width W2 smaller than width B2 of the second area 112 of the useful space 110 and wherein the goods carrier 120 is in contact with at least one of the rollers 101 with its second area 121. The second area 122 is for the purpose of the height adjustment and the third area 123 of the system is to produce the component 150. In total, the heights of the three areas 121, 122, 123 add up to the height of the goods carrier HW, which can be 420 mm for example. On the third area 123 of the goods carrier 120, a preformed component lies as component 150, which has the thickness HB of 200 mm for example. The goods carrier 120 consists of a first area 121, with which the goods carrier 120 is in contact with at least one roller 101, a second area 122 for height adjustment and a third area 123 for laying the component 150 on top. The heat treatment system 100 has a working height AH, for example, of 1,150 mm. In this case, working height is to be understood as the height of the upper circumference line of the rollers 101, this means the height at which the goods carrier 120 or the component 150 go through the heat treatment system 100 during operation without goods carrier 120, measured on the basis of a production building floor, for example, on which the heat treatment system 100 is set up.

[0029] The heat treatment system 100 consists of heat sources 102 in the form of gas burners with flame pipes in the first area 111 as well as in the second area 112 of the useful space 110. This arrangement allows for a homogenous heating of the component 150 through heat input from above and from underneath. The gas burner in the second area 112 of the useful space 110 are arranged one after another in the furnace through flow direction and alternatingly protrude from the lateral limiting walls 115 of the useful space into the second area of the useful space 110.

[0030] This means that the heat treatment system 100 consists of a graduated useful space width B1 and B2. This means that the heat treatment system 100 is suitable for the processing of components 150 in the form of plates on goods carriers 120 in the direct method, which are processed in the second, wider area 112 of the useful space 110. The heat treatment system 100 is equally suitable for heat treating components 150 in the form of preformed components on goods carriers 120 in the indirect method in the second, wider area 112 of the useful space 110. Furthermore, components 150 in the form of plates as well as in the form of preformed components, that do not have a width greater than the width B1 of the first useful space area 111, can be processed on goods carriers 120 in the second, wider area 112 of the useful space 110, or also in the first, narrower area 111 of the useful space 110. If the components 150 in the first area 111 are processed, an alternative goods carrier 120, in whose case at least the second area 122 for the height adjustment is absent or has been executed too short, has to be used. This can consist of a third area 123 for laying the component 150 made of a ceramic material, wherein in this case this third area 123 consists of a width that is smaller than width B1 of the first area 111 of the useful space 110. The components 150 in this case could also be laid directly onto the first area 121 of the goods carrier 120.

[0031] Ultimately the heat treatment system 100 can also be used to directly lay the components 150 in the form of plates on the rollers 101 without goods carriers 120 in the first area 111 of the useful space 110 and to process them there employing the direct method.

[0032] The embodiments displayed here only provide examples for the invention in question here and, for that reason, may not be understood as restrictive. Alternative embodiments taken into consideration by the expert are equally included in the protective area of the present invention here.

REFERENCE SIGN LIST

[0033] 100 heat treatment system

[0034] 101 roller

[0035] 102 heat source

[0036] 110 useful space

[0037] 111 first area of useful space

[0038] 112 second area of useful space

[0039] 115 lateral limitation wall

[0040] 120 goods carrier

[0041] 121 first area of goods carrier

[0042] 122 second area of goods carrier

[0043] 123 third area of goods carrier

[0044] 150 component

[0045] B1 width of the first area of the useful space

[0046] B2 width of the second area of the useful space

[0047] HB component height

[0048] HW goods carrier height

[0049] W1 width of the first area of the goods carrier

[0050] W2 width of the second area of the goods carrier