Preventive measures for major accidents in open pit mines

December 24, 2019

The main accidents in open pit mines include: landslides on the stope, transport vehicle accidents, mechanical accidents, lifting injuries, electric shocks, water hazards, fires, falling from heights, blasting accidents, boiler and pressure vessel explosions, poisoning and suffocation. Accident prevention measures include: (1) Before the commencement of the open-face mining and stripping work, the operating procedures must be prepared and implemented after approval by the responsible person of the mining enterprise. In open-pit mining, the height, width and slope angle of the stripping face must be controlled as specified in the design. (2) The mining area must establish a ground waterproofing and drainage system to prevent surface water from leaking into the open pit; prevent flash floods from destroying production, transportation systems, and structures; and prevent mudslides from dumping in the quarry (waste) quarry tailings; The landslide and the slope slide down. (3) Execution of the Ground Fire Fire Protection Law of mining enterprises. (4) The production, storage, transportation, testing, destruction and blasting operations of the blasting materials of mining enterprises shall be carried out in strict accordance with the regulations of the People's Republic of China on the management of civil explosives and the provisions of the blasting safety regulations. (5) The design, installation, acceptance, operation, maintenance and other work of the mine power system must be carried out in accordance with relevant state regulations. (6) open pit mine railway, motor transport must be managed in accordance with relevant state regulations. (7) Mine mining, loading equipment , boilers and pressure vessels, lifting equipment, etc. are used and managed according to the operating procedures of the equipment. (8) Regularly carry out various indicators on the environment of the mine, and promptly find problems and deal with them in time.

Plastic car exterior parts refer to front and rear bumper moulds, fog lamp moulds, and grilles and all plastic accessories, are requesting high quality with hardened steel 1.2738 or Finkl P20 hard steel in order to guarantee specified mould life such as 1000000shots. Plastic injection material is PP or ABS as per customer's requirement. Ceeto company has skilled design engineering team who is able to design plastic car bumper moulds as per part geometry, bumper mould design will be first considered hidden parting line or visible parting line according to DFM analysis and moldflow report.


Car bumper mould making factory


Cnc Workshop to make car bumper mould


Technical information for Car front bumper and rear bumper mould


  1. Design software: Pro-E
  2. Mould cavity: single cavity
  3. Molding material: PP, ABS, PE
  4. Mould cavity and core steel: 1.2738, P20, P20HH, 718H
  5. Hot runner system: Synventive, Yudo, HRS, Moldmaster
  6. Ejection system: Ejector pins, angle lifters
  7. Leadtime: 120 days
  8. Mould life: 500000 shots to 1000000 shots
  9. Mould packing: wooden box


Car bumper mould CNC milling


Ceeto Service Scope to manufacture car bumper mould


  1. Plastic bumper product DFM analysis
  2. Moldflow analysis
  3. Plastic car bumper mould design
  4. Plastic car bumper mould assembly drawing
  5. Plastic car bumper mould machining
  6. Plastic car bumper mould testing via injection molding machine
  7. Plastic car bumper mould packing
  8. Plastic car bumper samples packing
  9. Mould spare parts preparation
  10. We also support you for prototype mould design and manufacture


Plastic car bumper mould


Plastic Car Front Bumper and rear bumper mould test


Before we ship bumper mould to you, we will have bumper mould buy-off in house together with you, and we must make official at least three mould tryouts and 2000 empty cycle for mould to check if mould function is ok in a certain time.


Plastic bumper mould test on machine



Normally, you and we attend the validation procedure together and sign off after checking. What we are checking usually are as follows:

  1. Compatibility with Injection Machine to be used
  2. Is size of the mould ( Leight* width* Height ) correct?
  3. Is weight of the mould is correct?
  4. Are lifting eyebolts fully seated on the mold and not interfering with mold action?
  5. Are all transportation bars installed and in correct color as you request?
  6. Are knock-out holes for mechanical ejection and the layout correct as designed?
  7. Is electric box wired correctly as per injection machine standard?
  8. Are dimensions of locating ring correct?
  9. Is radius and orifice diameter of sprue bush correct?
  10. Are clamping features correct?
  11. Is the mold construction compatible with robot gripping if applicable to take off part?

Plastic bumper mould for car



Plastic car bumper mould material and heat treatment


What we will also inspect mould material and heart treatment as follows:


  1. Is any welding used on mold? Is welding process correct for the steel used?
  2. Have all mold plates been stamped with markings?
  3. Provide the heat treatment certificate and hardness for all applicable mold components
  4. Are moving parts nitrided? Provide nitride certificate.


We warmly welcome you to visit us and send us RFQ, we want to be your part of suppliers and we will do our utmost efforts to make high quality of moulds and products, if you have any doubts about technical points, please don't hesitate to let us know, we are looking forward to hearing from you, thanks a lot.


Automotive Exterior Plastic Injection Mould

Automotive Exterior Plastic Injection Mould,Injection Molding Automotive Parts,Plastic Car Front Bumper,Plastic Car Rear Bumper

Zhejiang Ceeto Molding Technology Co.,Ltd. , https://www.ceetomold.com

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