{"id":696,"date":"2025-02-07T17:20:00","date_gmt":"2025-02-07T09:20:00","guid":{"rendered":"https:\/\/www.amedrillsupply.ca\/?p=696"},"modified":"2025-08-25T23:45:08","modified_gmt":"2025-08-25T15:45:08","slug":"solve-dth-drill-bits-failure","status":"publish","type":"post","link":"https:\/\/www.amedrillsupply.ca\/fr\/solve-dth-drill-bits-failure\/","title":{"rendered":"6 fa\u00e7ons de r\u00e9soudre le probl\u00e8me des forets DTH"},"content":{"rendered":"

1. Break across the Chuck Ring Bearing Surface<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

– Worn-out bit chuck rings<\/p>\n\n\n\n

– Insufficient lubrication<\/p>\n\n\n\n

– Worn-out guide bushing<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Check the status of the bit, retaining rings, and guide bushing prior to drilling<\/p>\n\n\n\n

– Ensure the use of appropriate and adequate hammer oil<\/p>\n\n\n\n

– Replace aged components of the hammer with new ones<\/p>\n\n\n\n

2. Break across the Splines<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

– About the DTH hammer diameter, the diameter of the bit head is too big<\/p>\n\n\n\n

– Too much torque<\/p>\n\n\n\n

– Worn-out driver sub<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Modify drill settings for oversized drill bits<\/p>\n\n\n\n

– Utilize a larger DTH hammer suitable for the bit size<\/p>\n\n\n\n

– Adjust torque according to the rock conditions<\/p>\n\n\n\n

– Replace worn-out hammer components with new parts<\/p>\n\n\n\n

\"Break
Break across the Chuck Ring Bearing Surface<\/figcaption><\/figure>\n\n\n\n

3. Piston Striking Face Breakage<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

– Worn-out guide bushing<\/p>\n\n\n\n

– Worn-out piston, bit retaining ring, or driver sub<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Check the status of the piston, bit retaining rings, driver sub, and<\/p>\n\n\n\n

Guide bushing before drilling<\/p>\n\n\n\n

-Replace worn-out hammer components with new parts<\/p>\n\n\n\n

4. Shoulder damage<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

– Incorrect feed force<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Adjust feed force to keep the carbide working against the rock; increase on softer rocks but reduce as more drill pipe is added, thus naturally increasing the feed force<\/p>\n\n\n\n

\"Piston
Piston Striking Face Breakage<\/figcaption><\/figure>\n\n\n\n

5. Piston striking face damage<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

- Lubrification insuffisante<\/p>\n\n\n\n

– Debris trapped between the bit and the piston<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Ensure the use of appropriate and adequate hammer oil<\/p>\n\n\n\n

– Maintain tight hammer joints and cleanse the driver sub, bit retaining ring, and drive splines consistently<\/p>\n\n\n\n

– Inspect the hammer check valve assembly to ensure functionality<\/p>\n\n\n\n

6. Broken foot valve<\/h2>\n\n\n\n

Causes probables :<\/p>\n\n\n\n

– Worn-out piston, drive splines, or driver sub<\/p>\n\n\n\n

– Misalignment<\/p>\n\n\n\n

– Lack of lubrication<\/p>\n\n\n\n

Actions sugg\u00e9r\u00e9es :<\/p>\n\n\n\n

– Check the status of the piston, bit, and driver sub prior to drilling<\/p>\n\n\n\n

– Replace worn-out hammer components with new parts<\/p>\n\n\n\n

– Employ alignment tools and drill practices for straighter boreholes; opt for bits with a concave face design<\/p>\n\n\n\n

– Use suitable and sufficient hammer oil<\/p>\n\n\n\n

\"Piston
Piston striking face damage<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"

D\u00e9couvrez 6 fa\u00e7ons de rem\u00e9dier aux d\u00e9faillances des forets DTH, comme les ruptures de cannelures et les dommages aux pistons, gr\u00e2ce \u00e0 des conseils sur la lubrification, le remplacement des pi\u00e8ces et l'ajustement des param\u00e8tres de forage.<\/p>","protected":false},"author":1,"featured_media":6709,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drill-college"],"_links":{"self":[{"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/posts\/696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/comments?post=696"}],"version-history":[{"count":3,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/posts\/696\/revisions"}],"predecessor-version":[{"id":6783,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/posts\/696\/revisions\/6783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/media\/6709"}],"wp:attachment":[{"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/media?parent=696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/categories?post=696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.amedrillsupply.ca\/fr\/wp-json\/wp\/v2\/tags?post=696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}