Flame Treatment Scenario

Content trust and applicability

Author
TD Engineering Team
Publisher
Shanghai Tudou Technology Co., Ltd. | Shanghai, China
Scope

Engineering guidance for robotic spray painting, paint booths, paint supply systems, and production-scope decisions.

Best used for

Best used for early-stage feasibility checks, vendor comparison, scope definition, and internal project alignment.

Use with caution

Final specifications still depend on coating chemistry, part family, takt, utilities, site layout, local code, and EHS review.

Evidence basis

Based on TD engineering team experience, recurring project delivery patterns, and equipment-integration practice.

Scenario page for a bumper line needing reliable adhesion before basecoat and clearcoat.

Automotive bumper line needing flame treatment before decorative topcoat

The line coats PP/TPO bumpers and sees inconsistent adhesion after storage between treatment and painting. The project goal is to stabilize the process without adding manual handling.

Challenges

  • The substrate family has low surface energy and limited tolerance for overheating.
  • Production wants multi-color flexibility without sacrificing the treatment-to-paint window.
  • Current handling introduces dust and timing variation between activation and coating.

Evaluation steps

  • Confirm substrate family and adhesion target before choosing burner layout or robot reach.
  • Define whether flame treatment should be standalone, conveyor-integrated, or combined with painting in one cell.
  • Set controls around timing, distance, and part presentation so the activation result remains consistent.

Healthy outcome signals

  • A good scenario outcome shows better adhesion stability, fewer untreated zones, and less manual intervention between treatment and painting.
  • If these signals do not improve, the project may need a different pretreatment method or tighter part-handling control.
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