Forums » Outras Discussões

Welding of geomembranes

  • 17 de abril de 2019 23:57:53 ART

    Welding of geomembranes

    1. Heat transfer welding process is divided into: adjust the pressure, set the temperature, set the speed, welding seam lap inspection, film into the machine, start the motor, pressure welding.

    2. There shall be no oil or dust on the joints, HDPE geomembrane lap surface should not be sandwiched with sand and other debris, when there are sundries must be cleaned before welding.

    3. At the beginning of welding every day, a 0.9mm 0.3mm sample must be tried welding on site, with the lap width not less than 10cm, the stripping and shearing tests were carried out on site with a tension machine.After the sample is qualified, it can be used for welding with the speed, pressure and temperature adjusted at that time.Date, time and ambient temperature should be marked on the sample. Heat qieer welding machine in the welding process, need to pay attention to the operation of the welding machine at any time, according to the actual situation of the site to fine-tune the speed and temperature.

    4. The welding seam shall be neat and beautiful, and there shall be no skid welding or jumping away.

    5. When the length of the geomembrane hdpe liner supplier is insufficient, long-distance splicing is required. The transverse welds should be welded first and then the longitudinal joints should be welded. The transverse welds should be T-shaped at a distance of more than 50cm, and should not be crossed.

    6. Adjacent geomagnetic film welds should be overlapped with staggered joints as far as possible, and the joints formed between film blocks should be t-shaped, so as to minimize the cross shape, and extruded welder should be used to strengthen the longitudinal mode to the intersection of welds.

    7. No dead folding is allowed during welding. When laying HDPE geomembrane, the amount of stretching deformation caused by temperature change shall be reserved according to the local temperature change range and the performance requirements of HDPE geomembrane sheet.

    8. When the temperature of the portable welding machine control indicated by welding temperature below 200 ℃, with a clean cloth or cotton dust and welding, when necessary to burnish, hand brush try of avoid by all means.

    9. When there is condensation, moisture, sediment and other effects at the joints, the welding shall be carried out after treatment.

    10. Welding shall not be carried out during rain or in the case of moisture, dew, or heavy sand in the joints, unless protective measures are taken.

    11. The temperature is below 5 ℃, should not be construction in accordance with the specification requirements, if must construction, for welding machine preheating before welding processing.

    12. During the welding process of the extrusion welding machine, the slide block of the nozzle should be checked frequently. If the wear is serious, the slide block should be replaced in time to avoid damage to the film surface.

    13. The waterproof geomembrane shall be supplied by a generator with good voltage stability during welding. In special cases, when local electricity is used, a voltage regulator must be used.
    http://www.wslgeosynthetics.com/category-short-filament-geotextile-16398.html

    • 359 posts
    5 de agosto de 2019 03:53:01 ART

    I think that thanks for the valuabe information and insights you have so provided here. Lingfield Accountants

    • 359 posts
    7 de agosto de 2019 07:47:56 ART

    This is a great inspiring article.I am pretty much pleased with your good work.You put really very helpful information. Keep it up. Keep blogging. Looking to reading your next post. achat viagra

    • 359 posts
    10 de agosto de 2019 07:51:10 ART

    I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post. Garage Epoxy

    • 359 posts
    16 de agosto de 2019 04:07:36 ART

    The website is looking bit flashy and it catches the visitors eyes. Design is pretty simple and a good user friendly interface. FloraSpring Review™ - Does It Work?

    • 294 posts
    20 de agosto de 2019 07:59:48 ART

    This particular papers fabulous, and My spouse and i enjoy each of the perform that you have placed into this. I’m sure that you will be making a really useful place. I has been additionally pleased. Good perform! nutra active

     

    • 456 posts
    20 de agosto de 2019 10:03:29 ART

    Looking for the best sushi nyc or food near columbia university. Find sushi nearby and sushi delivery amsterdam avesushi morningside heights or sushi catering. Order sushi platter with sushi harlem or sushi amsterdam ave.

    • 359 posts
    2 de setembro de 2019 07:18:25 ART

    Hello I am so delighted I located your blog, I really located you by mistake, while I was watching on google for something else, Anyways I am here now and could just like to say thank for a tremendous post and a all round entertaining website. Please do keep up the great work. Vape Dubai

  • 3 de setembro de 2019 06:18:23 ART

    I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post.Mer information

  • 3 de setembro de 2019 08:19:03 ART

    I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post.researchguider.com

  • 3 de setembro de 2019 10:16:18 ART

    I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post.best 400 dollar projectors

  • 3 de setembro de 2019 10:39:23 ART

    I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post.epabx system kenya

  • 5 de setembro de 2019 08:49:34 ART

    Thanks for taking the time to discuss this, I feel strongly about it and love learning more on this topic. If possible, as you gain expertise, would you mind updating your blog with extra information? It is extremely helpful for me. florence residences review

    • 359 posts
    7 de setembro de 2019 05:13:56 ART

    At All Custom Food Boxes, we use 100% Environment-Friendly Materials for Boxes Manufacturing. We provide Quality Products In A Timely Manner. We also offer Cost Friendly and Reliable Packaging Solution. Order now to enjoy wholesale prices.

  • 8 de setembro de 2019 03:52:53 ART

    Thanks For sharing this Superb article.I use this Article to show my assignment in college.it is useful For me Great Work. http://www.elsitiocultural.org

  • 8 de setembro de 2019 06:08:22 ART

    It was wondering if I could use this write-up on my other website, I will link it back to your website though.Great Thanks. Fast Cash Loans

  • 8 de setembro de 2019 08:53:01 ART

    It was wondering if I could use this write-up on my other website, I will link it back to your website though.Great Thanks. Oddsmoney review

  • 9 de setembro de 2019 06:50:20 ART

    Hey what a brilliant post I have come across and believe me I have been searching out for this similar kind of post for past a week and hardly came across this. Thank you very much and will look for more postings from you. KBC head office number

  • 11 de setembro de 2019 07:25:47 ART

    It was wondering if I could use this write-up on my other website, I will link it back to your website though.Great Thanks. TOP ASIAN BRANDS

  • 12 de setembro de 2019 09:09:41 ART

    It was wondering if I could use this write-up on my other website, I will link it back to your website though.Great Thanks. Water heater Installation Vista

    • 359 posts
    14 de setembro de 2019 09:46:11 ART

    This is such a great resource that you are providing and you give it away for free. I love seeing blog that understand the value of providing a quality resource for free. Amazon seller performance

    • 359 posts
    18 de setembro de 2019 05:23:43 ART

    When your website or blog goes live for the first time, it is exciting. That is until you realize no one but you and your. www.remodelconway.com

  • 21 de setembro de 2019 04:07:18 ART

    Great article Lot's of information to Read...Great Man Keep Posting and update to People..Thanks Africa Social Media

  • 23 de setembro de 2019 07:47:12 ART

    Good artcile, but it would be better if in future you can share more about this subject. Keep posting. soap guy bath bombs

  • 24 de setembro de 2019 10:16:13 ART

    This article was written by a real thinking writer. I agree many of the with the solid points made by the writer. I’ll be back. Easy Payday Loans