割炬及消耗件工藝

1、 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc. Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.2割炬主體 (割炬頭)的構(gòu)造使得消耗件安裝后形成幾乎完美的組合： 電極 渦流環(huán) 割嘴 保持帽 保護(hù)帽 C

2、opyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.3電極嵌入物 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.4電極帶有等離子源提供的負(fù)電荷，以銅做電極基材能很好地固定住少量金屬鉿或金屬鎢嵌入物。 空氣或氧

3、氣做等離子氣時(shí)選用金屬鉿。 氮?dú)饣驓?氫氣做等離子氣時(shí)選用金屬鎢。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.5新件吹穿被沖蝕出現(xiàn)坑洞使用壽命到限 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.6

4、正常使用后的電極過(guò)度使用后的電極 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.7電極損壞到這樣嚴(yán)重程度，冷卻水進(jìn)水管損壞就在所難免。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.8割嘴 Copyr

5、ight, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.9 割嘴壓縮（聚集）噴射出的等離子體。 割嘴的孔徑與使用電流直接有關(guān)：使用電流越大，所需割嘴的孔徑就越大。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.10渦流環(huán)

6、 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.11 渦流環(huán)上帶有小孔，這些小孔引導(dǎo)氣體進(jìn)入等離子腔。 這些小孔使等離子氣旋轉(zhuǎn)形成向中心的旋渦，從而幫助等離子弧向中心壓縮，使能量更集中。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of

7、 Hypertherm, Inc.12 對(duì)O-型圈涂抹適量硅 (非-導(dǎo)電) 潤(rùn)滑脂，既能提高密封能力，又能防止O-型圈破裂。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.13保持帽 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of H

8、ypertherm, Inc.14保護(hù)帽 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.15按照切割參數(shù)表選擇合適的消耗件。 使用隨機(jī)提供的專(zhuān)用工具安裝消耗件。 切毋用力過(guò)度！應(yīng)用隨機(jī)提供的硅脂對(duì)消耗件上所有的O型密封圈作涂抹潤(rùn)滑，切毋過(guò)量使用, 僅需極薄一層。 將其擠壓到手指上（只需極少量）然后涂抹到O型密封圈上并作適當(dāng)摩擦。電極與割嘴應(yīng)該成套更換。 必要時(shí)渦流環(huán)也應(yīng)更換， 一般每更換5-10套

9、電極與割嘴應(yīng)更換新渦流環(huán)。保護(hù)帽；保持帽等，一般只在物理性損壞時(shí)或切割質(zhì)量變差時(shí)才更換。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.16 保護(hù)帽的作用是保護(hù)割炬和割嘴不受熔渣飛濺，隔離輻射熱。 保護(hù)帽同時(shí)又是保護(hù)氣或射流水的通道。 Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of Hypertherm, Inc.17另外，正確地操作方法和參數(shù)設(shè)置，通過(guò)下列簡(jiǎn)單的步驟可使消耗件使用壽命延長(zhǎng)： 正確的切割高度設(shè)定 最少的切割中斷次數(shù)消耗件平均使用壽命的長(zhǎng)短與穿孔次數(shù)和切割長(zhǎng)度密切相關(guān)。不能單用穿孔次數(shù)來(lái)衡量消耗件的使用壽命。見(jiàn)右圖：Actual number of starts will vary. Copyright, 2001 Hypertherm, Inc. These materials cannot be reproduced in any formwithout the permission of