Solutions Center

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Welcometo Machine Solutions minutes. My name is Brian Beam, and today I wouldlike to talk about thermal nozzles.

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Topicswe'll discuss are going to be what types of machines you use a thermal nozzlefor proper nozzle selection, sizing for uniformity, and temperatureverification and thermocouple positioning.

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Athermal nozzle is essentially a tool, that is used at the end of a hot airheater, to evenly distribute the heated air around the materials to beprocessed.

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Therecan be various types of machines that these go on, such as hot air stations formanual operation, horizontal laminate, yours, vertical laminate yours, and eventipping machines.

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Thereare also many types of nozzles, many types with multiple ports, some have two,some have three. Others have seven and some are fullyenclosed. Others are open style, and there's a good reason for eachdifferent type, depending on the application and size of yourmaterial. So, let's talk a little more about that.

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Themodel to 11 this is a dual port nozzle. with two exit ports, 180 degreesapart, and the height of that exit port is zero point one eight seveninches. Therefore, we recommend a maximum product diameter of zero pointone two five inches for this type of nozzle. The reason for that is if youget much bigger, you're not going to get uniform distribution over the fulldiameter of your material. You're going to end up with hotspots near theexit ports and cooler spots at the top and bottom.

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Thisnozzle can be used for all types of processes.

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Narrowbonds, balloon bonds, even lamination in a manual fashion.

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So, aslong as your material does not exceed zero point one two five inches, the 211is a great choice.

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The212 is also a dual port nozzle, but, the slot is horizontal to the table versusvertical like the 211.

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Thisnozzle is best used for lamination applications, or for automated hot airstation applications, in which the nozzle can shuttle in and out to thematerials, and engage them and then retract.

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So,again, product diameters up to zero point one two five inches and typically forlamination. However, in the products like the AC to 80 automated Hardierstation, this is an excellent choice for narrow bonds, but join slap joints orballoon bonds, and can go down to as narrow as zero point zero four zero inchwidth. So, it makes them ideal for very tight precise applications.

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The311 the 311 is a three port nozzle.

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Thereare three ports, 120 degrees apart.

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Andthis is ideal for product diameters up to zero point three hundred seventy fiveinches. The three ports, 120 degrees apart are going to ensure that youget uniform distribution around the diameter four parts up to 3.3, 7 fiveinches in diameter. So, this can also be used for narrow bonds,lamination, ****, joint slap joints, balloon bonds, it's application specificwhen it comes to the width and we can discuss that as well.

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TheModel 3, 12 is a horizontal version of the Model 311. This is primarilyused again for lamination, .... It can be used for the AC to 80 systems inwhich the nozzles shuttles out to the parts and Retracts.

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It isgood for narrow as well as for longer length applications, up to 25mm. It's primarily used on lamination systems, but again, it can be usedfor the 280 automated hot air station.

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The312 Excel is the same nozzle as the 312 but in longer lengths again, productdiameters up to zero point three hundred seventy five inches primarily in theExcel used for lamp for thermal lamination.

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TheModel M 360, full circular nozzle. This nozzle is primarily intended fordiameters up to zero point seventy five inches. It has sevenports. It has an internal flow chamber that balances the flow through allseven ports, to ensure that you get uniform distribution around your materials,This nozzle has the benefit of having sizing disks on the top andbottom. that can allow it to be quickly tailored to a given diameterwithout changing the entire nozzle. This is advantageous in optimizing thedistribution around the parts and the size of the part to the disk.

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Nozzlesizing.

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Whenwe talk about diameter, this is a very, very important aspect of sizing.

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There'sa general rule that you take your material diameter and you add between 450,000of an inch to your material diameter, and that determines your nozzle,diameter. It is not an absolute rule that you have to adhere to this.

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However,if you make that gap too small, again, you're going to get hotspots near theexit ports, because the air is not allowed to flow uniformly around the entirepart.

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Soallowing enough airflow to get uniform coverage, without getting those hotspotsright near the exit ports.

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So,you can have, let's say, for example, a half inch diameter nozzle, and you canprocess material.

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Assmall as zero point one inch diameter. It's just going to be a little lessefficient. It's, it's preferable that you get into that zero point two tozero point twenty five inch gap range for the best performance.

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Thewidth of the nozzle is always dependent on the process.

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So ifyou're doing, for example, a lap joint, you have an overlap length of, let'ssay, two mm, such as in a balloon or two tubes overlapping.

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You'regoing to want to size your nozzle width to that dementia, maybe slightlylonger, but then you're just heating material that you don't necessarily needto heat. So, it's best to minimize the width of nozzle to the applicationbeing performed. So, for a **** joint, you're going to want a very, verynarrow nozzle width such as the 40,000 or even a zero point one inch dependingon the diameter of the material for a lamination, if you're doing Eliminationson a hot air station manually, you're going to want the maximum width of halfan inch.

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Forthe 2 11, the half inch width is limited to two for reasons that the heatingelement is only half an inch wide, any wider. And you're going to start tohave a delta of cooler air towards the exit ports on the sides left, right.

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So,thank you for attending our little presentation. We look forward to seeingyou next time.