1. Minecarts are divided into:
Fixed box minecart.
Dump bucket minecart.
Single-sided curved rail side dump minecart (side dump minecart).
Bottom-dump minecart (bottom-side dump, double-bottom-dump).
Flatbed. Material carts.
Second, according to the standard.
Fixed box minecart: GB T28851-2008、mt387-2007
Dump Bucket Minecart: GB T28852-2008、mt387-2007
Single-sided curved rail side dump minecart (side dump minecart): GB T28853-2008、mt387-2007
Bottom dump minecart (bottom side dump, double bottom dump): GB T28854-2008、mt387-2007
Flatbed: GB T28855-2008、mt387-2007
Material car: GB T28856-2008、mt387-2007
3. Certification process.
Certification application - preliminary review and acceptance - technical review and product inspection - initial factory inspection - evaluation and approval of certification results - supervision after certification - certificate renewal.
4. Application materials.
1.Application for Safety Mark of Mining Products.
2.The applicant's business license.
3.Self-assessment report.
4.Product technical documentation.
1) Drawings. General drawing, main component drawing.
a.The product composition, connection structure (including the stop (connection) structure of the body and the connecting device, and the appearance size, positioning size, traction height, track gauge, wheelbase, wheel diameter and box wall thickness should be clearly reflected.
b.The model (drawing number) and material of the main parts (including product nameplate and MA mark) should be marked in the schedule.
c.Parameter table of technical characteristics.
d.In the technical requirements, the product implementation standards, the relevant main technical requirements in the implementation standards, assembly requirements, the applicable working conditions and use conditions of 10t and above minecarts, and the special design structure of the connecting parts should be clarified that they should be subjected to load test requirements together with the frame.
2) List of main parts and raw materials.
5. Minecart inspection items (factory inspection).
1.Minecart curve operation inspection.
2.Exterior dimensional inspection.
3.The difference in the diagonal of the trunk mouth.
4.Wheel-rail clearance.
5.Connection chain security checks.
6.Bolt security check.
6. Factory review.
1.Judging basis.
a) "Special Requirements for Factory Review of Minecart Products".
b) "Factory Quality Assurance Capability Requirements" (ABGZ-MK-01-2017-01).
2.Conclusions.
If the factory review conclusion is A-level, the review is qualified.
If the factory assessment conclusion is B or C, the applicant shall rectify the non-conformities, and the rectification work must be completed within 90 days.
If the factory assessment conclusion is D grade or the rejected item is unqualified, the applicant shall complete the rectification as required within 90 days and submit the rectification report to the review team leader.
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