——Enabling long-term operation of equipment with additive manufacturing and surface enhancement technology

In the global energy and heavy industry fields, equipment for oil and gas extraction, mining operations and chemical production has long faced multiple challenges such as extreme wear, high-temperature oxidation, and chemical corrosion. Relying on advanced technologies such as laser cladding, cold spray, and high-velocity flame spraying (HVOF), combined with customized metal powder materials, our company provides global customers with one-stop services from component repair to full life cycle performance upgrades, helping to increase equipment life by 3-10 times and reduce comprehensive operation and maintenance costs by more than 50%.

Ⅰ. Industry Challenges and Equipment Demand Analysis

1. Oil and Gas Extraction Field
   Downhole Tools (Drill Bits, Drill Pipes, Casings): Bearing rock chip abrasive wear and downhole high-pressure corrosion (H₂S/CO₂), it is necessary to improve surface hardness and resistance to hydrogen sulfide stress corrosion.

Valves and Pipelines: Medium scouring, high temperature and high pressure (≥300℃) and acid gas erosion require repairing the sealing surface and enhancing corrosion resistance.

Compressor impeller/rotor: high-speed airflow erosion and fatigue cracks, need to restore geometric accuracy and improve anti-fretting wear ability.

2. Mining and mineral processing
   Crusher hammer/jaw plate: high stress impact wear, need surface superhard coating to resist the impact of high hardness materials such as quartzite.

Conveyor chain/chute: ore particle friction wear and wet environment corrosion, need to have both wear resistance and acid and alkali resistance.

Slurry pump impeller/volute: solid-liquid two-phase flow erosion and cavitation damage, need to repair the flow channel profile and enhance cavitation resistance.

3. Chemical and refining
   Reactor/agitator: strong acid (sulfuric acid, hydrochloric acid), strong alkali and high temperature (500-800℃) corrosion, need inert coating resistant to chemical medium penetration.

Heat exchanger tube bundle: scaling, chloride ion pitting and thermal stress cracking, need surface anti-scaling and chloride corrosion resistance treatment.

Catalytic cracking unit: Catalyst particle erosion and high-temperature oxidation (900℃+), requiring thermal fatigue and thermal shock resistant coatings.

Ⅱ. Core technology and material selection

1. فناوری آلیاژکاری لیزری
   مزایای فنی
   Metallurgical bonding: The cladding layer and the substrate are bonded at the atomic level, with a bonding strength of ≥400MPa (ASTM C633 standard).

Precise shape control: The multi-axis linkage CNC system achieves 0.1mm repair accuracy for complex curved surfaces, and the heat-affected zone is ≤0.5mm.

Composite coating design: Supports gradient functional materials (such as “nickel-based transition layer + ceramic reinforcement layer”) to match multiple working conditions.

Typical materials and applications

2. Cold Spray Technology (Cold Spray)

Technical Advantages
Low-temperature deposition: Metal particles are deposited in a supersonic solid state to avoid thermal deformation of the substrate, which is suitable for repairing heat-sensitive materials such as aluminum alloys and titanium alloys.

Quick repair: Portable equipment supports on-site operations and completes the repair of large components (such as pipeline flanges) within 8 hours.

Typical materials and applications
Pure copper/copper alloy: Repair conductive parts (such as electrolytic cell electrodes), conductivity ≥95% IACS (International Annealed Copper Standard).

Titanium alloy (Ti-6Al-4V): Repair seawater corrosion-resistant structural parts of offshore platforms, in accordance with NORSOK M-001 standard.

3. Supersonic flame spraying (HVOF)

Material: Cr3C2-NiCr (chromium carbide nickel chromium), WC-CoCr.

Performance: Coating porosity ≤1%, bonding strength ≥70MPa, suitable for high-precision bearings, hydraulic rod wear-resistant reinforcement.

Ⅲ. Full-process service and quality assurance system

1. Service process

Damage assessment: 3D scanning, metallographic analysis and residual stress detection are used to accurately quantify the degree of component failure.

Process design: Match materials and process parameters based on the working condition database (including 2000+ cases).

On-site implementation:

Laser cladding: Equipped with 6kW-20kW fiber laser, supporting field mobile workstation deployment.

Cold spraying: Using Kinetic 3000 series equipment, deposition efficiency ≥80%.

Post-processing and testing:

Electrolytic polishing: surface roughness Ra≤0.4μm (ISO 4287).

Non-destructive testing: penetrant flaw detection (ASTM E1417), ultrasonic testing (ASME BPVC V).

2. Certification and standards

Material certification: powder complies with ASTM F3056 (nickel-based alloy) and ISO 4490 (tungsten carbide).

Process standards:

Oil and gas industry: API 6A (wellhead equipment), API 17D (underwater equipment).

Chemical industry: ASME B31.3 (process pipeline), NACE MR0103 (anti-sulfidation corrosion).

IV. Global cooperation cases and benefits

1. Repair of drilling and production equipment in the Middle East oil field

Problem: Wear of the drill pipe joint thread leads to seal failure, and the cost of repairing a single well exceeds US$500,000 per time.

Solution: Laser cladding Stellite 6 coating (thickness 1.2mm), hardness HRC 55, and wear resistance increased by 6 times.

Results: After the repair, the service life of the drill pipe was extended from 3 wells to 15 wells, and the customer’s annual operation and maintenance costs were reduced by US$3.2 million.

2. Upgrade of Australian iron ore crushing system

Problem: The jaw plate of the jaw crusher is replaced every 2 weeks, and the downtime loss is as high as US$80,000 per day.

Solution: HVOF spraying WC-10Co-4Cr coating, thickness 0.5mm, impact wear life increased to 6 months.

Results: Annual spare parts cost savings of 1.4 million US dollars, production efficiency increased by 22%.

3. Corrosion-resistant transformation of European chemical plant reactor

Problem: The inner wall of the 316L stainless steel reactor was perforated in 98% sulfuric acid environment in 6 months.

Solution: Cold spraying Ta (tantalum) coating (thickness 2mm), concentrated sulfuric acid corrosion life exceeded 5 years.

Results: Avoid frequent shutdowns and replacements, and increase customer capacity utilization by 18%.

As a trusted surface engineering partner in the global energy and heavy industry fields, we follow the principle of “zero-distance response, zero-defect delivery” and provide:
Technical customization: Jointly develop special alloy powders with customers (such as Ni-Cr-Mo-W alloy resistant to fluoride ion corrosion).

Intelligent equipment: Deliver AI-driven laser cladding robots to achieve self-optimization of process parameters and remote operation and maintenance.
Sustainable value: By repairing instead of purchasing new parts, we can reduce metal resource consumption and carbon emissions by more than 90%.

Let each device be reborn under extreme working conditions – we use innovative technology and excellent services to protect the efficient operation of the global energy and industrial lifeline.