О материале пластиковых волынок
Jan. 15th, 2018 10:13 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
dna2два ответа с форума по поводу материала пластиковых волынок
http://forums.bobdunsire.com/forums/showthread.php?t=147111&page=2
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If they are McCallum drones, they are NOT Delrin, which is an acetyl homopolymer; they are made from an acetyl copolymer, which is generically called, "Acetal." Acetal is not as hard nor as strong as Delrin, which McCallum does use in his pipe chanters, as do all the other pipe makers who have a "plastic" pipe chanter, such as Naill, Soutar, Dunber, Strathmore, Hardie, etc.
I asked Alastair Dunn of RG Hardie, who advertise an Acetal model, why they chose to use Acetal instead of Delrin, and he said they found Acetal to "finish better" and have a "smoother tone." In other words, they are more cost effective in both materials and labor, as Acetyl costs less than Delrin and requires less labor to finish after turning. That is also why neither McCallum nor Hardie offer a lifetime warranty on their poly pipes and why both Dunbar and Soutar do.
Companies that make both products even recommend Acetal (acetyl copolymer) for use in disc shaped applications, such as gears. On the other hand, they recommend Delrin (acetyl homopolymer) for applications that are rod shaped, which bagpipe chanters and drones happen to be. This might also be why players have mentioned in blogs that they hear a "buzzy" sound in the Henderson-styled Dunbar pipes, whereas no one has mentioned hearing one in either McCallum (loosely based on Lawrie) or Hardie (McDougal styled) pipes.
I hope this clears up the confusion many players have over the two. BTW, Delrin is the trade name from its developer, DuPont, but it has been manufactured by other companies, such as the Japanese company, Polypenco. That company was bought out by another company, and they changed the name of that product to "Nylotron," although they might continue to use Polypenco when selling to musical instrument makers who are used to that term (who knows)
=========================
I've included this information as a reply to a couple of threads above, but thought it should be included as a reply to the original question, as well.
Apparently, there is confusion over terms used for "plastics" being used in bagpipes. If your set has McCallum or RG Hardie drones, they are NOT Delrin, which is an acetyl homopolymer; they are made from an acetyl copolymer, which is generically called, "Acetal." Acetal is not as hard nor as strong as Delrin, which McCallum does use in his pipe chanters, as do all the other pipe makers who have a "plastic" pipe chanter, such as Naill, Soutar, Dunber, Strathmore, Hardie, etc. The only companies that use Delrin in their drones include Dunbar and Soutar (don't know of any smaller companies who do, but who know?).
I asked Alastair Dunn of RG Hardie, who advertises an Acetal model, why they chose to use Acetal instead of Delrin, and he said they found Acetal to "finish better" and have a "smoother tone." In other words, they are more cost effective in both materials and labor, as Acetyl costs less than Delrin and requires less labor to finish after turning. That is also likely why neither McCallum nor Hardie offer a lifetime warranty on their poly pipes and why both Dunbar and Soutar do.
Companies that make both products even recommend Acetal (acetyl copolymer) for use in disc shaped applications, such as gears. On the other hand, they recommend Delrin (acetyl homopolymer) for applications that are rod shaped, which bagpipe chanters and drones happen to be. This might also be why players have mentioned in blogs that they hear a "buzzy" sound in the Henderson-styled Dunbar pipes, whereas no one has mentioned hearing one in either McCallum (loosely based on Lawrie) or Hardie (McDougal styled) pipes.
==============
Так-так-так, значит Dunbar копирует свои с Hendersons
http://forums.bobdunsire.com/forums/showthread.php?t=147111&page=2
================
If they are McCallum drones, they are NOT Delrin, which is an acetyl homopolymer; they are made from an acetyl copolymer, which is generically called, "Acetal." Acetal is not as hard nor as strong as Delrin, which McCallum does use in his pipe chanters, as do all the other pipe makers who have a "plastic" pipe chanter, such as Naill, Soutar, Dunber, Strathmore, Hardie, etc.
I asked Alastair Dunn of RG Hardie, who advertise an Acetal model, why they chose to use Acetal instead of Delrin, and he said they found Acetal to "finish better" and have a "smoother tone." In other words, they are more cost effective in both materials and labor, as Acetyl costs less than Delrin and requires less labor to finish after turning. That is also why neither McCallum nor Hardie offer a lifetime warranty on their poly pipes and why both Dunbar and Soutar do.
Companies that make both products even recommend Acetal (acetyl copolymer) for use in disc shaped applications, such as gears. On the other hand, they recommend Delrin (acetyl homopolymer) for applications that are rod shaped, which bagpipe chanters and drones happen to be. This might also be why players have mentioned in blogs that they hear a "buzzy" sound in the Henderson-styled Dunbar pipes, whereas no one has mentioned hearing one in either McCallum (loosely based on Lawrie) or Hardie (McDougal styled) pipes.
I hope this clears up the confusion many players have over the two. BTW, Delrin is the trade name from its developer, DuPont, but it has been manufactured by other companies, such as the Japanese company, Polypenco. That company was bought out by another company, and they changed the name of that product to "Nylotron," although they might continue to use Polypenco when selling to musical instrument makers who are used to that term (who knows)
=========================
I've included this information as a reply to a couple of threads above, but thought it should be included as a reply to the original question, as well.
Apparently, there is confusion over terms used for "plastics" being used in bagpipes. If your set has McCallum or RG Hardie drones, they are NOT Delrin, which is an acetyl homopolymer; they are made from an acetyl copolymer, which is generically called, "Acetal." Acetal is not as hard nor as strong as Delrin, which McCallum does use in his pipe chanters, as do all the other pipe makers who have a "plastic" pipe chanter, such as Naill, Soutar, Dunber, Strathmore, Hardie, etc. The only companies that use Delrin in their drones include Dunbar and Soutar (don't know of any smaller companies who do, but who know?).
I asked Alastair Dunn of RG Hardie, who advertises an Acetal model, why they chose to use Acetal instead of Delrin, and he said they found Acetal to "finish better" and have a "smoother tone." In other words, they are more cost effective in both materials and labor, as Acetyl costs less than Delrin and requires less labor to finish after turning. That is also likely why neither McCallum nor Hardie offer a lifetime warranty on their poly pipes and why both Dunbar and Soutar do.
Companies that make both products even recommend Acetal (acetyl copolymer) for use in disc shaped applications, such as gears. On the other hand, they recommend Delrin (acetyl homopolymer) for applications that are rod shaped, which bagpipe chanters and drones happen to be. This might also be why players have mentioned in blogs that they hear a "buzzy" sound in the Henderson-styled Dunbar pipes, whereas no one has mentioned hearing one in either McCallum (loosely based on Lawrie) or Hardie (McDougal styled) pipes.
==============
Так-так-так, значит Dunbar копирует свои с Hendersons