SKU: 48907286871

peek 450g sheet

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Description

peek 450g sheetLastre piastre di PEEK (polietere etere chetone) non caricate prodotte esclusivamente con la materia prima Victrex 450G. La dimensione richiesta non disponibile? Forniamo lastre di PEEK di qualsiasi dimensione, contattateci per un preventivo. Informazioni sullo strato di PEEK 450G: Il PEEK (Polietereterchetone) un materiale termoplastico ad alte prestazioni che offre eccellenti propriet meccaniche, termiche e chimiche. Le lastre di SBIRCIATA sono

Lastre/piastre di PEEK (polietere etere chetone) non caricate prodotte esclusivamente con la materia prima Victrex 450G.

La dimensione richiesta non è disponibile? Forniamo lastre di PEEK di qualsiasi dimensione, contattateci per un preventivo.

Informazioni sullo strato di PEEK 450G:

Il PEEK (Polietereterchetone) è un materiale termoplastico ad alte prestazioni che offre eccellenti proprietà meccaniche, termiche e chimiche. Le lastre di SBIRCIATA sono ampiamente utilizzate in vari settori industriali grazie alle loro eccezionali caratteristiche. Ecco una panoramica delle proprietà, della lavorabilità e delle applicazioni delle lastre di SBIRCIATA:

Proprietà chiave dello strato 450G PEEK:

Resistenza alle alte temperature: Le lastre di SBIRCIATA possono sopportare temperature di esercizio continue fino a 250-300 gradi Celsius (482-572 gradi Fahrenheit) e mantenere le loro proprietà meccaniche a temperature elevate.

Resistenza meccanica: Il PEEK presenta un'elevata resistenza alla trazione e alla flessione, che lo rende adatto ad applicazioni che richiedono integrità strutturale in condizioni difficili.

Resistenza chimica: Il PEEK presenta un'eccellente resistenza a un'ampia gamma di sostanze chimiche, tra cui acidi, basi, solventi e idrocarburi. Questa proprietà lo rende adatto ad applicazioni esposte ad ambienti chimici difficili.

Resistenza all'usura e all'abrasione: Le lastre di PEEK presentano una buona resistenza all'usura e all'abrasione, che si rivela vantaggiosa nelle applicazioni che prevedono il contatto per scorrimento o sfregamento.

Basso coefficiente di attrito: Il PEEK ha un basso coefficiente di attrito, che garantisce una buona lubrificazione e riduce il rischio di usura dei componenti.

Isolamento elettrico: Il PEEK è un eccellente isolante elettrico con buone proprietà dielettriche, che lo rendono adatto ad applicazioni elettriche ed elettroniche.

Stabilità dimensionale: Il PEEK presenta un basso creep e un'eccellente stabilità dimensionale, garantendo tolleranze strette e una lavorazione precisa.

Lavorabilità dello strato di SBIRCIATA:

Il PEEK è un materiale altamente lavorabile, ma la sua tenacità e l'elevata temperatura di fusione richiedono tecniche di lavorazione adeguate. Alcune considerazioni sulla lavorazione delle lastre di PEEK includono:

Utensili da taglio: Utilizzare utensili affilati in acciaio ad alta velocità (HSS) o in carburo solido. Anche gli utensili rivestiti di diamante sono adatti per una maggiore durata.

Velocità di taglio: Le velocità di taglio ottimali per il PEEK sono in genere inferiori a quelle utilizzate per i metalli. Velocità di taglio più elevate possono causare un eccessivo accumulo di calore.

Raffreddamento e lubrificazione: Il raffreddamento dell'utensile da taglio e del pezzo è importante per dissipare il calore. Si utilizzano comunemente refrigeranti/lubrificanti a base di aria o acqua.

Controllo del truciolo: Un efficace controllo dei trucioli è necessario per prevenire l'accumulo di trucioli e garantire prestazioni di taglio adeguate. Usare rompitrucioli appropriati o tecniche di evacuazione dei trucioli.

Applicazioni delle lastre di PEEK:

Le lastre di PEEK trovano applicazione in diversi settori, tra cui:

Aerospaziale: La SBIRCIATA è utilizzata nei componenti degli aerei, come staffe, boccole, cuscinetti e parti strutturali, grazie alla sua leggerezza, all'elevata resistenza e alla resistenza ai carburanti dell'aviazione.

Automotive: Il PEEK è utilizzato in applicazioni automobilistiche, tra cui guarnizioni, connettori, componenti del sistema di alimentazione e parti di isolamento elettrico.

Medicale: Il PEEK è ampiamente utilizzato nei dispositivi e negli impianti medici grazie alla sua biocompatibilità, alla resistenza alla sterilizzazione e all'elevata resistenza. Ne sono un esempio gli impianti spinali, gli strumenti dentali e gli strumenti chirurgici.

Elettronica: Il PEEK è utilizzato nei connettori elettrici, negli isolanti e nelle schede dei circuiti grazie alle sue proprietà di isolamento elettrico e alla capacità di resistere alle alte temperature.

Petrolio e gas: Il PEEK viene impiegato in applicazioni petrolifere e del gas, tra cui guarnizioni, cuscinetti, valvole e componenti di pompe, grazie alla sua resistenza chimica e alla capacità di sopportare pressioni e temperature elevate.

Questi sono solo alcuni esempi delle numerose applicazioni in cui le lastre di PEEK vengono utilizzate grazie alle loro eccezionali proprietà e lavorabilità.

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SKU: 48907286871

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4.4 ★★★★★
Based on 24 reviews
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M
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Malvin
Lexington, US
★★★★★ 4
A compelling counternarrative
Format: Hardcover
"The Political Brain" by Drew Westen is an important contribution to the political science literature in general and an inspiration for Democratic Party supporters in particular. Mr. Westen's knowledge of psychology and the cognitive sciences provides insight into how the individual develops a political consciousness. Showing how the Republican Party has gained advantage by developing an emotionally fear-laden narrative designed to exploit the electorate's psychic sensibilities, Mr. Westen argues that Democrats can and must develop a compelling counternarrative that appeals to the American public's better angels in order to inspire their supporters and win consistently at the polls. The first section discusses the mind, brain and emotion in politics. Mr. Westen draws upon the latest scientific research to explain how emotion is integral to the brain's cognitive function. Mr. Westen recites passages delivered by Franklin Delano Roosevelt and Bill Clinton to illustrate how political messages are most effective when they tie issues to emotionally resonant themes and images. Importantly, Mr. Westen also deconstructs the neoliberal ideology of Ronald Reagan to help us better understand the importance of evolutionary psychology and crafting popular messages with curb appeal. The second section provides a blueprint for executing emotionally compelling campaigns. Mr. Westen explores the multiple layers of voter intelligence to reveal how Republicans have successfully used subliminal messaging to activate the public's feelings of anxiety in order to get people to vote against their own material self-interests. The author stresses that when Democratics shy away from conflict, voters instinctively detect weakness; therefore he recommends that Democrats cede nothing and go after issues that many voters tend to perceive as Republican. To that end, Mr. Westen offers a series of principled narratives on contentious issues such as abortion, affirmative action, gay rights and gun control that he believes could easily help the Democrats gain majority support by activating the American voter's sense of fairness, freedom and equality of opportunity. While perhaps not fully convincing on all subjects, Mr. Westen amply demonstrates that a coherent and inspirational counternarrative is possible. Unfortunately, this otherwise excellent book succumbs to a transparent attempt at self-promotion by forcing readers to go to the author's website to read the footnotes. Boo! Yet despite this minor deficiency, I highly recommend this timely and fascinating book to everyone.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2008
J
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Jan Strnad
Port Orchard, US
★★★★★ 5
Essential reading for Democratic campaign managers
Format: Kindle
For decades it has frustrated me that, while most of the country shares Democratic beliefs over Republican ones, Democrats keep losing elections. Why? Because the very values Democrats hold dear...taking the higher road, trying to stay "above the fray", concentrating on issues over personalities...fail to speak to the emotional brain that makes most voters' electoral decisions. Whether it's the language they use while failing to understand its connotations, over-handling by committees that blunt the message, or simple refusal to debate some topics at all (abortion, gun control, race) thereby defaulting on them to the Republicans, Democrats systematically undermine their own campaigns. Westen's book is must reading for every Democrat who wants to hold public office! Thus, the five stars. On the other hand, Westen makes his point clearly and firmly in the first third of the book, and then beats us over the head with it, taking us point by point through campaigns, tweaking the information endlessly, and frankly, about halfway through I started skimming and eventually put it down. "I get it already!" I thought, and moved on. Also, this is horribly produced ebook. It's obviously scanned from a printed copy and poorly proofread, it at all. When Westen talks about the perception of the word "gull" and how it affects elections, you have to read a bit to understand that it's the word "gun" he's talking about! Words bizarrely split, words run together, bizarre punctuation and misspelling due to OCR errors are rife on every single page. Furthermore, the type looks like bad photocopying with the machine set on "light." Ugly, ugly, ugly. Yet the publisher (Hatchette) charges nearly as much for the ebook as for the print book, which I'm sure looks a lot better. It couldn't look any worse. If I could, I'd rate it "five stars" for the content, downgrade it to "three stars" for being redundant, and finally give it "one star" for being so terribly produced. That first third of the book, though, is so important for Democrats to understand (the Republicans already have a masterful grasp of it) that I went with the "five star" rating.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2011
K
Verified Purchase
Kenneth H. Cohen MD
San Leandro, US
★★★★★ 5
A Great Awakening
Format: Kindle
Political Brain offers a profound and enlightening roadmap to reboot and reconfigure the Democratic Party and campaign strateies. The new and innovative discipline offered up should be mandatory reading for anyone running for any office.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2025
S
Verified Purchase
Scot Denhalter
Los Angeles, US
★★★★★ 5
A Bitter Pill, but Much Needed Knowledge
Format: Kindle
Its thesis is that we, as humans, are predisposed to emotional, gut-level decision-making. Although most liberals will not want to accept this, author, Drew Westen, makes his case so well even the most inveterate ostriches must pull their heads out of the sand. We believe first, then we seek to support our beliefs. How we come to believe is a complex interaction of genetics and environment, which Westen makes no effort to reveal. What he focuses on is the counter-productive illusion that facts and issues matter more than the emotions underlying the principles we value most in life. And Westen disabuses the reader of this illusion quite completely, giving examples of what should have been said and what should have been done in Democrat campaigns in response to Republican attack. As a psychologist, Westin teaches us how the human brain works and why it is important for liberal politics to know how it works before selecting a candidate and mounting a campaign.
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Reviewed in the United States on June 23, 2013
B
Verified Purchase
Bri
Charlottesville, US
★★★★★ 3
good to a point
Format: Paperback
basically what could help democrats win.all well and good,but that side has much of the same donors(drug companies,defense contractors,oil industry,etc.)as the republicans.THAT'S why they don't push back fundamentally. one of my big problems with the author is his unapologetic.uneducated islamaphobia.he sounds like george bush when he mentions muslims actually.he fell for the propaganda.instead of drinking the koolaid of the cult,he should sip from the tea of informed tact. i know right-wingers wear their stances/prejudices on their sleeves,but the problem with the liberal side is the smugness they can exude towards everyone else,when,let's face,they're no better.they went to college to deepen THEIR prejudices with a more expanded vocabulary. otherwise,it's interesting from a psychological standpoint on how and what moves the masses.again,it's worth it to a point,just keep in mind that he's a bit of a meathead
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Reviewed in the United States on November 22, 2020

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