WO2011015224A1

WO2011015224A1 - Chain pack

Info

Publication number: WO2011015224A1
Application number: PCT/EP2009/060011
Authority: WO
Inventors: Heinz Wernli
Original assignee: Sulzer Metco Ag
Priority date: 2009-08-03
Filing date: 2009-08-03
Publication date: 2011-02-10
Also published as: CN102470383A; EP2461911A1; US20120223080A1

Abstract

The invention relates to a chain pack (1) for packaging a granular substance (2, 21, 22), in particular for packaging a spray powder (2, 21, 22) for the thermal coating of a surface (31) of a workpiece (3). According to the invention, the chain pack (1) comprises a plurality of individual packaging pouches (4) of predefinable size, wherein a metered quantity of the granular substance (2, 21, 22) is packed in the individual packaging pouch (4) so as to be sealed with respect to an external environment. The invention also relates to a method for charging a treatment apparatus with a granular substance (2, 21, 22), to a treatment apparatus (6) for using a chain pack (1), to a method for producing a chain pack (1), and to a packaging apparatus.

Description

Verpackunqsstranq

The invention relates to a packaging strand, a method for

Loading a treatment device with a packaging strand, a treatment device, a method for producing a

Packaging strand, as well as a packaging device according to the preamble of the independent claim of the respective category.

Powder processing facilities of various kinds that are in the

Operating state with powdery, materials, such as spray powders,

Minerals, such as sand, granules, from the

usually consist of a powder supply system, which consists essentially of a powder delivery system, with which consists of a

Reservoir in which a certain amount of the required powder can be stored as a supply, the powder of the powder processing device can be supplied.

In industrial practice, the aforementioned powder processing equipment may, for example, thermal spray devices, such as

Plasma guns, cold gas spray systems, or the various well-known flame spraying and arc spraying systems (in which partially parallel next to a spray wire and powder can be processed) or other powder-processing spray systems with which, for example, surfaces of workpieces are refined. An example of other powder processing devices are devices for

Surface treatments of workpieces, for example for the abrasive, roughening or polishing treatment of a surface of a workpiece

Workpiece by means of a blasting material, for example by means of minerals such as sand, fine dust, or a metallic, ceramic or

synthetic blasting material.

The problem of all of these exemplified, known from the prior art powder processing facilities is that they have conventional powder delivery systems, the reservoir for the corresponding powder or blasting material of limited capacity, which in the case of thermal spray systems usually maximum, for example Have 5 liters of volume. This is especially for mass production, so if parts in series in very large numbers, for example, with a

thermal spraying layer must be provided or the surfaces of workpieces must be treated by means of blasting with a blast, extremely cumbersome.

In mass production, the processes, for example, the

Coating of workpieces, relatively often be interrupted at regular intervals to reload the reservoir, which of course brings considerable time delays and also can be accomplished only consuming.

In addition, often the quality of the process is not completely independent of the level of the reservoir. Thus, it may be advantageous in thermal spraying, depending on the spraying process, and / or the spray material and / or the required quality of the layer to be sprayed, that the level in the reservoir changes only between a predetermined maximum and minimum value, since the concrete Level, for example, influenced by the powder delivery rate, so too high and / or too low level negatively affects the quality of a layer to be sprayed

can influence.

In the thermal coating of cylinder surfaces of

Industrial-scale reciprocating internal combustion engines, for example, in the coating of truck engines, modern engines for

Passenger cars, engines for two-wheelers or other land, air or sea vehicles are processed daily large quantities of spray powder. The spray powder is, as mentioned above, from

Weight reasons in containers from 1 liter to 5 liters, in a few cases also delivered to 7 liters volume. Since the spray powders used are very often a mixture of different components, which have different chemical composition, different powder grain sizes, different powder grain shapes, different specific weights, etc., these spray powders segregate more or less during transport, so that the spray powders before they the coating system can be used, consuming to be mixed again in a tumbling machine. The mixing process is time-consuming and typically requires 10 minutes and more, the mixing process itself often runs off only with unsatisfactory result. On the conveyor belt in practice, for example, every 40 sec a

Cylinder liner of an internal combustion engine

Piston tread coated. In this case, per cylinder liner, depending on their size, e.g. 300 g of spray powder needed, resulting in a consumption of about 500g spray powder per minute. This means that an operator needs a new container every 3 - 6 minutes, usually in the form of a

Spray powder filled bottle for mixing in the tumbling machine

edit. Remove an empty bottle from the sprayer and reinstall a new bottle, the contents of which have been re-mixed in the tumble machine, into the sprayer. Thus, a person is constantly busy only with the preparation and replacement of the spray powder bottles.

Of course, these problems not only occur in connection with the coating of cylinder liners, but are quite general a problem with thermal spraying, but also with others

Machining operations using powdered or granular substances, such as abrasive surface treatment

Beam processes, such as sandblasting with granular powders or

Powder mixtures.

The object of the invention is therefore to provide a new supply system for the provision of granular substances on a treatment device, in particular a new supply system for

Provision of spray powders to propose a thermal spray device, with which the disadvantages of the prior art can be avoided. Above all, segregation during transport of the granular substances is to be prevented so that the mixing of the granular substance in the tumbling machine is eliminated and in particular a targeted automated subsequent delivery of the granular substance is made possible without the operation of the powder to be supplied

Treatment device must be interrupted, while optimally working results can be guaranteed.

The objects of the invention solving these objects are characterized by the features of the independent claims. The dependent claims relate to particularly advantageous

Embodiments of the invention.

The invention thus relates to a packaging strand for packaging a granular substance, in particular for packaging a spray powder for thermally coating a surface of a workpiece.

According to the invention, the packaging strand comprises a plurality of individual packaging pockets of predeterminable size, wherein a dosable quantity of the granular substance is packaged in a closed manner against an external environment in the individual packaging bag. By packaging the granular substance in the inventive packaging strand, in particular, for example, a spray powder for thermal coating, the problems mentioned in the prior art mentioned above are completely solved for the first time. The packing strand of the present invention is formed as a long mechanically flexible strand in which at least in the longitudinal direction of the strand at certain intervals

Packaging bags are provided, in which a predetermined amount of granular substance dosed and protected against environmental influences is packaged. The long flexible packaging strand can be transported in a simple manner by the packaging strand, for example, in many layers one above the other and / or side by side, very compact in a transport container or, for example, packaged in a transport foil can be delivered.

In this case, the packaging strand, with a variety of

Packaging bags is very easily by an automatic conveyor, for example by a pair of conveyor rollers automatically a treatment device, preferably a thermal

Sprayer is to be supplied, so that the spray powder automatically z. in a thermal spray gun can be promoted, where it is then available for thermal spraying. Thus eliminates the known from the prior art constant changing the container or bottles that contain only a very limited supply of spray powder. In principle, the inventive packaging strand can be formed as long as desired with any number of packaging pockets, so that the treatment device can be operated without interruption and without further operating personnel until other boundary conditions necessitate an interruption.

An essential feature of the invention is thus that in the operating state, the treatment device with a predetermined amount of granular Substance, so for example, with powder or a blasting material can be refilled, without, that a running process, for example, a coating process, which is running from designed as a thermal spray device processing device must be interrupted or permanently ready for refilling staff must be made. Only at the beginning of a work process must the

Treatment strand are inserted into the automatic conveyor. The conveyor is preferably by a

Data processing system programmatically, so that the refilling process can also be linked to other processes. For example, a thermal coating process can be interrupted and restarted as long as not all of the packaging pockets of the

Packaging strand are emptied.

Thus, in the case of mass production or mass production of a very large number of workpieces, very long service life can be achieved without the production process having to be interrupted. Thus, a coating plant for thermally coating a component, such as a cylinder of an internal combustion engine, for example, can be operated continuously for a whole week or more, without the process of coating the parts for refilling the reservoir

should be interrupted if only one packing strand of sufficient length is used. Also, of course, two or more

Packaging drinkers are combined to an even longer packaging strand. In a specific embodiment, the packaging strand extends along a longitudinal direction in a predefinable length, and the individual packaging pockets are arranged along the longitudinal direction at a predeterminable distance, preferably at an equidistant distance, and form a first chain of packaging pockets. In another embodiment, in addition to the first chain of packaging bags, a second chain or a plurality of additional chains of packaging pockets may be provided into which, for example, different types of granular substance may be packaged in isolation from each other. For example, the packaging pockets in the first chain and the second chain may have different sizes, so that in the

Packing bag of the first chain may be packaged a different amount of material than in the packaging bags of the second chain. In each case, when the contents of a packaging bag of the first chain and the second chain are supplied together to the treatment device, a mixing ratio of two or more granular substances can be preset.

The distribution of the granular substance on two or more different chains of packaging bags can have different reasons. For example, it is possible that two types of powder must be processed simultaneously, which for some reason can not be stored mixed for long periods. It is also possible that a substance must be packaged differently than another substance. For example, while one of the substances has to be protected against moisture, the other must be protected against oxygen, so that the packaging pockets of the respective chains are made of different materials.

It is understood that even within a chain, e.g. the

Packaging bags are alternately filled with different substances, if required by the appropriate processing process. In that case, the treatment device may be used alternately with a first one

Substance and then be charged with a second substance. Also, the size of the packaging bags can vary within one and the same chain.

Particularly interesting are such packaging variants or

Combinations when automatically complicated processes, for example complicated coating processes are to be realized. For example, in a complicated coating process, the individual Packing bags in a given sequence alternately with different spray powders and / or with different amounts

Spray powder are filled. As a result, for example, different workpieces can be successively thermally coated with different layers or different areas can be at one and the same

Workpiece automatically be provided with different spray coatings, without a manual replacement of the spray powder are necessary. Or you can automatically spray several different layers on top of each other. The person skilled in the art immediately understands that a whole range of other complicated combinations of individual steps can also be achieved by using a suitably equipped packaging strand, and not only in thermal spraying.

Thus, even when blasting with abrasive blasting material, for example, a stepwise treatment of a workpiece with different

Blasting material can be realized or different workpieces can be treated successively with different blasting material.

In certain cases, even different processes can be combined by filling the packaging bags with the required materials in a corresponding manner. For example, a workpiece from a combined processing device may first be filled with the contents of a

Packaging bag be sandblasted while in a next

Packaging bag a spray powder is included, with which then the surface of the workpiece is provided with a thermal spray coating. In a particularly important embodiment for practice, the granular substance is a mixture of at least a first

Powder component and a second powder component. This is very often the case with thermal spraying. Modern spray materials are often a complex mixture of various components, for example of metallic and ceramic components, wherein, for example, an average grain size of the first powder component different from an average grain size of the second powder components and / or wherein the first powder component has a chemical composition which is different from a chemical composition of the second powder components and / or wherein a specific weight of the powder components differs more or less clearly and / or wherein other chemical or physical properties of the

Powder components are different.

In all these cases, there is a risk of segregation when transporting the powder mixtures, just by the movements of the

Powder mixtures are exposed during transport. Therefore, in the prior art powder mixtures had always been consuming in one

Tumbling machine be mixed again before they could be used for example in thermal spraying.

In a very important example in practice of a packaging strand according to the invention, however, the granular substance is in the

Packing bag secured against segregation packaged by the granular substance is packaged secured against segregation, for example, in relation to an ambient pressure under a negative pressure in the packaging bag. By creating a sufficient negative pressure in relation to the ambient pressure in the packaging bag, the ambient pressure presses the packaging bag together so strongly that the individual grains of the granular substance in the

Packing bag against each other and against the shell of the

Packaging bag are fixed so that no segregation occurs during transport. In another embodiment, the granular substance is pressed, for example, with high pressure during packaging in the packaging bag, so that the powder the interior of the packaging bag to such a high mass that prevents segregation is prevented. This embodiment can be realized particularly advantageous with a packaging bag, which is made of a sufficiently elastic material, for example a plastic. In this case, optionally also an additional Vacuum be generated in the packaging bag, but in many cases, then no longer necessary.

In particular, when a chemically sensitive substance is to be packaged in a packaging strand according to the invention, the granular substance may also be packaged in the packaging bag under a protective gas atmosphere. For example, under a noble gas atmosphere or under an inert gas such as nitrogen.

The packaging strand or the packaging bag is preferably made from a plastic material, in particular from a plastic, in particular from a polyethylene. To isolate against exchange of fluid between an interior of the packaging bag and the environment, the packaging bag may be made of a barrier material that prevents, for example, the exchange of gases such as oxygen or liquids such as water or other fluids. In particular, the barrier material is a multilayer film

different functional films, so that the interior of the

Packaging bags is protected at the same time against the ingress of oxygen and water, or a protective gas atmosphere inside the

Packaging bag can be maintained. is. In particular, if a particular foreclosure of the packaged powder is not of particular importance, the packaging strand can of course also be made of another material, for example of a woven material, of a carbon composite material, of glass fibers, metallic threads or textile materials. Also, the packaging bags and the strand itself, in which the packaging bags are arranged, may be made of different materials.

Thus, the inventive packaging strand can be easily divided into several sub-strands, for example, can be provided between two pockets a separating seam, a kind of predetermined breaking point, where the packaging strand can be easily separated. Also allowed a separation seam also a simpler and more compact

Merging the packaging strand, because the packaging strand on the separation seam can also be easily folded without being cut it, which is very advantageous especially for transport and storage, as this space requirement is minimized.

The invention further relates to a method for feeding a

Treatment device with a granular substance. According to the invention is for treating a workpiece by a

Treatment device of the treatment device, the granular

Packed substance in a packaging strand of the present invention, wherein the packaging strand a plurality of individual

Contains packaging bags of predetermined size, and the

Packaging strand of the treatment device is supplied such that at a predetermined time interval one in two different

Packaging bags metered amount of granular substance is successively supplied to the treatment device.

To carry out the inventive method is at the

Treatment device preferably provided a conveyor and the packaging strand is the treatment device through the

Conveyor automatically fed. The conveyor can be realized, for example, in a conventional manner by a pair of rollers that guide the packaging strand. Other options can be used advantageously. Thus, for example, be seen on the packaging strand in the longitudinal direction of a suitable perforation, so that the packaging strand can be conveyed by means of a gear drive, which engages in the perforation of the packaging strand. The person skilled in the art will certainly be aware of further conveying devices and possibilities as to how the packaging strand can be conveyed in a simple manner.

Very advantageous is an opening means for opening the

Packing bag provided so that the bag is automatically opened by the opening means and the metered amount of

granular substance automatically supplied to the treatment device becomes. In concrete terms, the opening means may be a sharp blade or a knife, for example, with which the packaging bag

can be cut open so that the grain-shaped

Substance can escape. Of course, other opening means are also possible, such as tongs which tear open the packaging bag, or thermal opening means which heat up or melt the packaging bag or open it in some other suitable way.

According to a specific embodiment, a method according to the invention, the packaging strand extends along a longitudinal direction in a predetermined length, wherein the individual packaging pockets are arranged along the longitudinal direction at a predetermined distance, preferably at an equidistant distance, so that a first chain of packaging pockets is formed. In this case, the packaging strand is delivered to the treatment device in a transport container, a first end of the packaging strand is inserted into the conveyor and the packaging strand is automatically fed out of the transport container according to a predetermined time schedule of the treatment device.

In particular, in addition to the first chain of packaging bags, a second chain of packaging bags may be provided and each content of the packaging bag of the first chain and a content of the

Packaging bag of the second chain of the treatment device

be automatically fed. In particular, the content of the

Packing bag of the first chain and the contents of the packaging bag of the second chain are simultaneously supplied to the treatment device automatically.

In a particularly important for practice embodiment of an inventive method for feeding a

Treatment device, the treatment device is a device for thermal spraying and / or the workpiece is treated by a thermal spraying process. The thermal spraying process is a Flame injection molding, a plasma spraying process, a HVOF spraying process or another thermal powder spraying process.

In particular, the thermal spraying method is a rotary plasma powder injection method, wherein preferably a plurality of cylinders of an internal combustion engine are automatically coated on a cylinder running surface in succession.

Moreover, the invention relates to a treatment device, in particular a thermal coating device for using a packaging strand and for carrying out a method according to the invention described above.

In particular, the invention also relates to a process for the production, as well as a packaging device for producing a

Chain packing.

In the following the invention will be explained in more detail with reference to the drawing. In a schematic representation:

Fig. 1a a detail of a preferred embodiment of an inventive packaging strand;

FIG. 1b shows a section according to FIG. 1a along the section line I-I; FIG. 2 shows a second embodiment of a packaging strand.

FIG. 3 shows a multilayer film for producing a packaging bag; FIG.

4 shows a rotating plasma spraying device according to the invention for coating cylinder running surfaces. Fig. 1 a shows a schematic representation of a detail of a preferred embodiment of an inventive

Packaging strand, which is hereinafter referred to collectively with the reference numeral 1. 1 a comprises a multiplicity of packaging pockets 4 for packaging a granular substance 2, 21, 22. The packaging pockets 4 are in a particular embodiment of FIG. 1a in a first chain Ki along a longitudinal direction L at equidistant distances A. arranged. Each packaging pocket 4 contains a granular substance 2, 21, 22, which in the present example is a wettable powder 2, 21, 22 in the form of a mixture of a first

Powder component 21 and a second powder component 22. Each

Packaging bag 4 has a predeterminable size, so that in each individual packaging bag 4 a metered amount of the spray powder 2, 21, 22 is packed against an external environment. At least the packaging bag 4 itself is made of a barrier material 400. The barrier material 400 is in the embodiment of FIG. 1 a a

Multilayer film 400, which is composed of a plurality of different functional films 401, 402, as will be explained in more detail later with reference to FIG. 3. For the safe transport of the packaging strand 1 by means of a conveyor 7, as described in detail, for example, with reference to FIG. 4, perforations 71 are provided at the edges of the packaging strand 1, into which e.g. a gear of the conveyor 7 can engage to the packaging strand 1 from a transport container 9 of a treatment device 6, so e.g. to supply a plasma spraying device 6. The spray powder 2, 21, 22 is in relation to a

Ambient pressure under a vacuum in the packaging bag 4 secured against segregation packaged.

Clearly visible are the separation seams 5, which allow the packaging strand 1 to be separated either at a sepa- ration seam 5 in a simple manner or else the packaging strand 1 without it

split by creasing at the septal seams 5 compact merge so that it can be transported and stored space-saving.

1a shows a section along the section line II from the direction of view II onto the packaging strand 1. Here it can clearly be seen how the granular substance 2, 21, 22 packed in the packaging pockets 4 under reduced pressure prevents segregation during transport of

Packing strand 1 is secured. The under negative pressure

Packing bag 4 made of the elastic barrier material 400

is established, due to the external pressure surrounding the packaged in the bag 4 spray powder 2, 21, 22, and squeezes it together in the bag 4 that movement of the powder grains within the bag 4 is largely impossible, so that the invention during transport of the packaging strand 1 substantially no segregation of the granular spray powder 2, 21, 22 can take place more.

In Fig. 2 is an example of a second embodiment of a

Packaging strand 1 of the present invention is shown in a schematic manner. This is a special embodiment in which the packaging strand 1 extends along the longitudinal direction L in a predefinable length, and the individual packaging pockets 4 are arranged along the longitudinal direction L at a predeterminable equidistant distance A and a first chain Ki of packaging pockets 4 form. In addition to the first chain Ki of packaging bags 4, a second chain K _{2 is provided} by packaging pockets 4, so that, for example, in the

Packaging bags 1 of the first chain Ki another grain-like substance than in the packaging pockets 1 of the second chain K ₂ can be packed. The packaging strand 1 according to FIG. 2 has no perforations 71, since the conveyor 7 for conveying the packaging strand 1 according to FIG. 2 does not use gears, but with non-slip roller assemblies transported the packaging strand 1, as already known from the prior art in various fields known per se. Fig. 3 shows schematically a barrier material 400 for producing a packaging bag 4, as for example for the production of

Packaging strand 1 according to Fig. 1 a and Fig. 1 b can be used.

The barrier material 400 is a special multilayer film 400 comprising three functional films 401, 402, an inner functional film 401 being arranged between two identical outer functional films 402. In the example of FIG. 3, the inner functional film 401 is a gas-sealing film 401, which in particular on the one hand prevents the penetration of gases, such as oxygen or other gases from the outside into the packaging bag 4. On the other hand, a protective gas, which protects the contained granular substance 2, 21, 22 in the packaging bag 4, is retained in the packaging bag 4. In addition, the functional film 401 can also serve to maintain a negative pressure or an overpressure, as may possibly be provided in the case 1 when using protective gas in the packaging bag 1.

The two outer functional foils 402 are in the example of FIG. 3

Liquid sealing functional films 402, on the one hand prevent the ingress of liquid, for example, of water in the packaging bag 4. For special granular substances 2, 21, 22, it can also serve, in particular, to provide a necessary residual moisture within the

Packing bag 4 to maintain.

It goes without saying that other types of functional films 401, 402 can also be advantageously used depending on the requirements and, of course, more than three layered barrier materials 400 are also possible.

Finally, FIG. 4 shows a complete treatment device 6

schematically represented by a plasma spraying device 6 with a rotating powder plasma burner 61 is formed with powder supply device 62 as a treatment device 61. For reasons of clarity, the illustration of further important supply devices, which comprises the plasma spraying device 6 in a manner known per se, has been dispensed with. As one skilled in the art knows, supply devices, not shown, for supplying electrical energy, cooling water, data lines, etc., are present in addition to the powder supply device 62.

4, the rotating powder plasma torch 61 just coats the piston running surface 31 of a cylinder bore 3 of a multi-cylinder V engine with a special thermal spray powder 2, 21, 22. For this, the powder plasma torch 61 rotates about its axis as shown by the arrow 601 and becomes moved simultaneously along its axis according to the arrow 602, so that the piston tread 31 is gradually completely provided with a thermal spray coating. When the cylinder bore is completely coated, a robot system, not shown in FIG. 4, brings the cylinder block 3 into a new machining position such that another cylinder bore can likewise be coated. In this way, all cylinder bores of a

Cylinder block 3 coated for an internal combustion engine. According to the present invention, the spray powder 2, 21, 22 was packaged in a packaging strand 1 for thermal coating of the piston running surface 31 by the rotating powder plasma torch 61, wherein the packaging strand 1 comprises a plurality of individual packaging pockets 4 of predetermined size, and the packaging strand 1 of

Plasma spraying device 6 is supplied such that at a predetermined time interval in two different bags 4 metered amount of spray powder 2, 21, 22 successively the powder supply direction 62 and thus the rotating powder plasma torch 61 is supplied. At the plasma spraying device 6, a conveyor 7 is provided with conveyor rollers 70, so that the packaging strand 1 of the

Plasma spraying device 6 is supplied automatically by the conveyor 7. In this case, an opening means 8, here an electrically heated wire 8 is provided for opening the bag 4, which opens the bag 4 automatically by means of heat by the bag 4 is melted through the heated wire 8 at a predetermined location and so the metered amount of spray powder 2, 21, 22 automatically the

Powder supply direction 62 and thus the rotating

Powder plasma burner 61 is supplied.

The packaging strand 1 extends along the longitudinal direction L in a predetermined length, wherein the individual packaging pockets 4 are arranged along the longitudinal direction L at an equidistant distance A, so that a first chain Ki of packaging pockets 4 is formed. The packaging strand 1 was in a transport container 9, e.g. supplied on a pallet 9 to the plasma spraying device 6 and inserted a first end of the packaging strand 1 in the conveyor 7. In the operating state of the packaging strand 1 is then according to a predetermined time schedule of the plasma spraying device 6 from the

Transport container 9 out automatically fed. After the automatic emptying of the packaging bags 4, the packaging strand 1 is then transported according to the representation away to the right of the plasma spraying device 6 away again and fed to a disposal station, not shown.

It goes without saying that the invention is not limited to the exemplary embodiments described by way of example. The person skilled in the art will understand, in particular, that all described exemplary embodiments, combined in a suitable manner, are likewise covered by the invention and recognize without effort simple developments of the claimed invention.

Claims

claims

1 . Packaging strand for packaging a granular substance (2, 21, 22), in particular for packaging a wettable powder (2, 21, 22) for thermally coating a surface (31) of a workpiece (3), characterized in that the packaging strand comprises a plurality of individual Packaging bags (4) of predeterminable size, wherein in the individual packaging bag (4) a metered amount of the granular substance (2, 21, 22) is packaged sealed against an external environment.

2. Packaging strand according to claim 1, wherein the packaging strand along a longitudinal direction (L) extends in a predetermined length, and the individual packaging pockets (4) along the longitudinal direction (L) at a predeterminable distance (A), preferably at an equidistant distance ( A) are arranged and a first chain (Ki) of

Form packaging bags (4).

3. Packaging strand according to claim 2, wherein in addition to the first chain (Ki) of packaging bags (4), a second chain (K ₂ ) of

Packaging bags (4) is provided.

4. Packaging strand according to one of the preceding claims, wherein the granular substance (2, 21, 22) is a mixture of a first

Powder component (21) and a second powder component (22).

5. Packaging strand according to claim 4, wherein an average particle size of the first powder component (21) different from a middle

Grain size of the second powder components (22).

A packing strand according to any one of claims 4 or 5, wherein the first powder component (21) has a chemical composition different from a chemical composition of the second powder components (22).

7. Packaging strand according to one of the preceding claims, wherein the granular substance (2, 21, 22) in the packaging bag (4) is secured against segregation secured, in particular with respect to an ambient pressure under a negative pressure in the packaging pocket (4) secured against segregation is packed.

8. Packaging strand according to one of the preceding claims, wherein the granular substance (2, 21, 22) under a protective gas atmosphere in the packaging bag (4) is packed.

9. Packaging strand according to one of the preceding claims, wherein the packaging bag (4) made of a plastic material, in particular of a plastic, in particular made of a polyethylene.

10. Packaging strand according to one of the preceding claims, wherein for isolation against exchange of a fluid between an interior of the packaging bag (4) and the environment, the packaging bag (4) is made of a barrier material (400).

1 1. The packaging strand of claim 10, wherein the barrier material (400) is a multilayer film (400) of different functional films (401, 402).

12. Packaging strand according to one of the preceding claims, wherein between two packaging pockets (4) a separating seam (5) is provided.

13. A method for charging a treatment device (6) with a granular substance (2, 21, 22), characterized in that for treating a workpiece (3) by a treatment device (61) of the treatment device (6), the granular substance (2 , 21, 22) in a packaging strand (1) according to one of claims 1 to 12, wherein the packaging strand (1) comprises a plurality of individual packaging pockets (4) of predetermined size, and the packaging strand (1) of the treatment device (6 ) like this is fed, that in a predetermined time interval in two different packaging bags (4) metered amount of granular substance (2, 21, 22) successively the treatment device (61) is supplied.

14. The method according to claim 13, wherein at the treatment device (6) a conveyor (7) is provided, and the packaging strand (1) of the treatment device (6) by the conveyor (7) is automatically supplied.

15. The method according to claim 14, wherein an opening means (8) for opening the packaging pocket (4) is provided, the packaging pocket (4) is automatically opened by the opening means (8) and the metered amount of granular substance (2, 21, 22 ) automatically the

Treatment device (61) is supplied.

16. The method according to any one of claims 13 to 15, wherein the

Packaging strand (1) along a longitudinal direction (L) in one

extends predetermined length, the individual packaging bags (4) along the longitudinal direction (L) at a predetermined distance (A), preferably in an equidistant distance (A) are arranged so that a first chain (Ki) of packaging pockets (4) is formed , wherein the packaging strand (1) in a transport container (9) to the

Treatment device (6) is supplied, a first end of the

Packaging strand (1) in the conveyor (7) is inserted and the packaging strand (1) after a predetermined time

Flow diagram of the treatment device (6) from the transport container (9) out automatically supplied.

17. The method of claim 16, wherein in addition to the first chain (K ₁₎ of packaging bags (4) a second chain (K ₂₎ of packaging bags (4) is provided, and a respective content of said packaging bag (4) of the first chain (K ₁ ) and a content of the packaging bag (4) of the second chain (K ₂ ) of the treatment device (61) is automatically supplied.

18. The method according to claim 17, wherein the content of the packaging bag (4) of the first chain (K ₁ ) and the contents of the packaging bag (4) of the second chain (K ₂ ) is fed simultaneously to the treatment device (61) automatically.

19. The method according to any one of claims 13 to 18, wherein the

Treatment device (6) a device (6) for thermal

Spraying is and the workpiece (3) is treated by a thermal spraying process.

20. The method of claim 19, wherein the thermal spraying method is a flame spraying method, a plasma spraying method, a HVOF method

Spraying method or another thermal powder spraying method is.

21. The method according to any one of claims 19 or 20, wherein the thermal spraying method is a rotary plasma powder injection method and a plurality of cylinders (3) of internal combustion engines on a cylinder surface (31) are coated automatically successively.

22. Treatment device, in particular thermal

Coating device for using a packaging strand (1) according to one of claims 1 to 12 and for carrying out a

Method according to one of claims 13 to 21.

23. A method for producing a packaging strand (1) according to one of claims 1 to 12.

24. Packaging device for carrying out the method according to

Claim 23.