Steel bar couplers are used to connect steel bars and have internal threads corresponding to the male threads. The simplely construction process is using a rolling process to create straight threads on the end of the steel bars and connecting them with the appropriate couplers. So, what are the key points to attention during the manufacturing process? In the following, the coupler manufacturer DLADTO will provide you with a detailed introduction:

1.The thread, tooth shape, and pitch of the processed rebar threads should be consistent with the connecting coupler threads, and they should be inspected and approved by matching gauges.

2. When processing rebar threads, water-soluble cutting lubricant should be used. When the temperature is below 0℃, 15%-20% sodium nitrite should be added. Machine oil is not allowed as a lubricant or threading without any lubricant.

3. Operators should inspect the appearance quality of rebar thread heads individually and make operator marks.

4. Rebar thread heads that have passed self-inspection should be randomly sampled for 10% of each specification, not less than 10 pieces. If there is one piece that does not meet the requirements, the entire batch should be inspected. Non-compliant thread heads should be reprocessed and can only be used after passing the re-inspection.

5. Inspected and approved thread heads should be protected with protective caps and neatly categorized according to specifications for future use.