Gas Pressure Welder (Rebar Work)
ガスあっせつこう（てっきんこうじ）
Industry & Occupation
Classification
Summary
Specialized technician who heats the ends of rebar using oxygen and combustible gas, then applies pressure to form joints.
Description
Gas pressure welders are specialized technicians who heat and melt the end faces of rebar using a flame mixed with oxygen and combustible gases such as acetylene or propane, and join them by applying a predetermined pressure. The work involves positioning rebar based on drawings, chamfering end faces, managing heating temperature and time, operating pressure welding press machines, and finishing grinding and inspecting joint areas. To maintain high quality, strict process management is required, including temperature control, pressure welding condition settings, and weld filler material selection. Since work is performed at outdoor construction sites, safety and health measures as well as collaboration with teams are also important.
Future Outlook
With the demand for construction and infrastructure development, a shortage of skilled workers has been pointed out, and stable demand is expected in the future. Although robotization and automation technologies are advancing, skilled techniques are indispensable for high-quality joints.
Personality Traits
Cautious / High concentration / Strong sense of responsibility
Work Style
Construction Site / Direct Commute / Season and Weather Dependent / Team Work
Career Path
Apprentice Gas Pressure Welder → Gas Pressure Welder → Group Leader (Small Team Leader) → Site Construction Manager → Technical Instructor
Required Skills
Gas Pressure Welding Machine Operation / Pressure Welding Condition Setting / Rebar End Face Processing / Welding Quality Inspection / Work Drawing Reading
Recommended Skills
Basic Knowledge of Architectural Structures / Basic Machine Maintenance / Rebar Construction Management / Safety and Health Management
Aptitudes (Strengths Preferred)
| Item | Description |
|---|---|
| Attention to Detail & Accuracy | Because minute temperature control and misalignment affect joint quality. |
| Physical Stamina & Endurance | Requires physical stamina for long hours of heavy work and in flame-heat environments. |
Aptitudes (Weaknesses Acceptable)
| Item | Description |
|---|---|
| Creativity & Ideation | Creativity is less emphasized than accuracy since standard procedures are followed. |
| Numerical & Quantitative Analysis | Advanced calculations are few; mainly confirming instrument values. |
Related Qualifications
- Architectural Rebar Construction Skills Master
- Gas Welding Skills Training
Aliases
- Acetylene Pressure Welder
- Propane Oxygen Pressure Welder
Related Jobs
- CO2 Welder
- Electric Arc Welder
- Rebar Worker
- Welder