氩弧焊技术入门与提高(第二版)

Brand: 化学工业出版社 Sold By: EM China
$22.00 In Stock
Ships from China, Arrives in 10-15 business days
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May2025
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May2025
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氩弧焊技术入门与提高(第二版)

氩弧焊技术入门与提高(第二版)

$22.00

Product Details
编辑推荐


 

 
内容简介

　　本书着重介绍了钨极氩弧焊(GTAW)的基础知识和操作方法，以及金属材料的焊接及有色金属材料的焊接等实用技术，解析了钨极氩弧焊的应用，同时也讲解了焊接工艺评定、焊工考试要求等内容，应用技术比较全面。
　　本书以初级工的实用技术为主，兼顾初、中级焊工学习和提高，多以图解方式说明原理和操作技巧，通俗易懂，并结合经常接触到的氩弧焊接实用技术，对铝及铝合金的焊接、异种金属材料的焊接和异种有色金属焊接等技术，从理论和实际操作技能上，作了全面讲解，突出焊接的实用性。
　　本书适合初、中、高级焊工自学和提高。

目　　录
第1章　氩弧焊基础知识
1.1氩弧焊概述
1.1.1GTAW电弧的结构与特性
1.1.2氩弧的形成
1.1.3气体的电离现象
1.1.4气体的保护作用
1.1.5电弧的刚度
1.2GTAW焊的特点
1.3GTAW焊的电源种类与极性
1.4手工钨极氩弧焊的基本操作方法
1.5熔化极氩弧焊熔滴过渡特性
1.6手工钨极氩弧焊的工艺参数及操作过程
1.6.1电极
1.6.2喷嘴
前　　言
手工钨极氩弧焊是国内目前发展最快、应用最广泛的一种实用焊接技术。近年来，氩弧焊接，特别是手工钨极氩弧焊接技术已经成为各种金属结构连接手段中不可缺少的技术。所以，国内各行各业对氩弧焊工人的需求越来越大。近几年来氩弧焊的机械化、自动化程度不断提高，并向着数控化方向发展，达到了一个工业技术需求更高的阶段。
氩弧焊之所以能获得如此广泛的应用，主要是因为有如下优点。
①氩弧焊采用惰性气体保护，减少了合金元素的烧损，可以得到致密、无飞溅、高质量的焊接接头。
② 氩弧焊的电弧稳定，热量集中，弧柱温度高，热影响区窄，焊件应力、变形、裂纹倾向小。
③ 氩弧焊为明弧焊接，方便焊接过程的观察，容易操作。
④氩弧焊几乎能焊接所有金属，特别是难熔金属、易氧化金属，如钛、镁、镍、锆、铝等及其合金。
⑤ 不受焊件的位置限制，可在任何情况下，进行全位置焊接。
⑥ 容易实现机械化和自动化控制。

Shipping Overview: 

• Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

• International Shipping: Currently, we only ship within the USA. 

• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

编辑推荐


 

 
内容简介

　　本书着重介绍了钨极氩弧焊(GTAW)的基础知识和操作方法，以及金属材料的焊接及有色金属材料的焊接等实用技术，解析了钨极氩弧焊的应用，同时也讲解了焊接工艺评定、焊工考试要求等内容，应用技术比较全面。
　　本书以初级工的实用技术为主，兼顾初、中级焊工学习和提高，多以图解方式说明原理和操作技巧，通俗易懂，并结合经常接触到的氩弧焊接实用技术，对铝及铝合金的焊接、异种金属材料的焊接和异种有色金属焊接等技术，从理论和实际操作技能上，作了全面讲解，突出焊接的实用性。
　　本书适合初、中、高级焊工自学和提高。

目　　录
第1章　氩弧焊基础知识
1.1氩弧焊概述
1.1.1GTAW电弧的结构与特性
1.1.2氩弧的形成
1.1.3气体的电离现象
1.1.4气体的保护作用
1.1.5电弧的刚度
1.2GTAW焊的特点
1.3GTAW焊的电源种类与极性
1.4手工钨极氩弧焊的基本操作方法
1.5熔化极氩弧焊熔滴过渡特性
1.6手工钨极氩弧焊的工艺参数及操作过程
1.6.1电极
1.6.2喷嘴
前　　言
手工钨极氩弧焊是国内目前发展最快、应用最广泛的一种实用焊接技术。近年来，氩弧焊接，特别是手工钨极氩弧焊接技术已经成为各种金属结构连接手段中不可缺少的技术。所以，国内各行各业对氩弧焊工人的需求越来越大。近几年来氩弧焊的机械化、自动化程度不断提高，并向着数控化方向发展，达到了一个工业技术需求更高的阶段。
氩弧焊之所以能获得如此广泛的应用，主要是因为有如下优点。
①氩弧焊采用惰性气体保护，减少了合金元素的烧损，可以得到致密、无飞溅、高质量的焊接接头。
② 氩弧焊的电弧稳定，热量集中，弧柱温度高，热影响区窄，焊件应力、变形、裂纹倾向小。
③ 氩弧焊为明弧焊接，方便焊接过程的观察，容易操作。
④氩弧焊几乎能焊接所有金属，特别是难熔金属、易氧化金属，如钛、镁、镍、锆、铝等及其合金。
⑤ 不受焊件的位置限制，可在任何情况下，进行全位置焊接。
⑥ 容易实现机械化和自动化控制。

Shipping Overview: 

• Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99. 

• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment. 

• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days. 

• International Shipping: Currently, we only ship within the USA. 

• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.

Shipping Delays: 

Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.

Shipping Options:

  • Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.

  • Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.

  • Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.

  • Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.

Delivery Details:

  • Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.

  • Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.

  • Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.

Shipping Confirmation:

You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.

Order Modifications:

If you need to cancel or modify your order, please contact our customer support immediately.

Issues with Delivery:

If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.

Customer Support:

Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.

Return & Refund Policy Overview

Please review our return and refund policies below to ensure a smooth transaction process.

Return Policy

  • Duration: You have 30 days from receiving your item to initiate a return.

  • Condition: Items must be unworn, unwashed, with original tags and packaging intact.

  • Shipping Costs: Customers are responsible for return shipping costs.

  • Packaging: Ensure returned items are well-packaged to avoid damage during transit.

  • Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.

  • Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.

How to Return

  • Method: Returns must be sent back by mail to the address provided in the return instructions.

Return Label

  • Defective Products: Return labels are provided for defective items.

  • Non-Defective Returns: Customers are responsible for obtaining their return shipping label.

Product Conditions for Return

  • Eligible Products: Returns are only accepted for items in new condition.

Nonreturnable Items

Certain items are not eligible for return:

  • Electronic devices after 30 days (e.g., computers, laptops, Kindles)

  • Gift cards, prepaid game cards

  • Perishable goods, live insects, some jewelry, some health and personal care items

  • Customized or personalized products

  • Items with special shipping restrictions

Refund Policy

  • Window: Eligible products may be returned within 30 days of delivery for a refund.

  • Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.

  • Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.

Claims

Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.

Exchange Policy

For the quickest service, return your original item and place a new order for the desired product once your return is accepted.

Return Address

EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366

Customer Support

Available 24/7 for any questions or assistance needed:

  • Phone: +1 636-312-5925

  • Email: cs@everymarket.com

 

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