Welding Materials

Advanced Surface Protection & Additive Manufacturing

1. Alloy Powders

Equipped with advanced nitrogen and argon atomization technology, we produce high-quality cobalt, nickel, and iron-based powders tailored for 3D printing and surface engineering.

Our powders are compatible with various processes, including HVOF, plasma surfacing, and laser cladding. They provide superior protection and repair solutions for valves, valve seats, and industrial tooling across the metallurgy, petrochemical, and automotive sectors, ensuring exceptional resistance to wear, heat, and thermal shock.

Cobalt-based alloy powders
Iron-based alloy powders
Nickel-based alloy powders

Click Here to view the full specifications

Powder Metallurgy

Cobalt-chromium-tungsten alloy powder is processed through pressing and vacuum sintering to produce balls, valve seats, copper extrusion die cores, blades, and other components. BZZ special material forging billets are manufactured using advanced melting methods: VIM, VIM+ESR, or VIM+ESR+VAR. Most steel grades utilize the VIM+ESR method, while military and nuclear power grades with stringent requirements adopt the VIM+ESR+VAR process.

3D Printing Powder

Our powders are ideal for 3D printing metal parts, dental/oral components, and artificial joints (implants). They are also widely used in aerospace powder metallurgy, metal injection molding (MIM), and other high-precision fields.

Welding Materials

We offer high-quality welding consumables suitable for surfacing, repair, and protective coating applications across various industries.

2. Welding rods

Shanghai BZZ Automatic Machinery Co., Ltd. utilizes a horizontal continuous casting production line to manufacture cobalt-base, nickel-base, and iron-base bare rods. Available sizes range from 2.40mm to 8.0mm (1/16” to 5/16”).

These rods are compatible with various welding processes, including GTAW (TIG), PAW, and OFW.

Specification Table

Due to their exceptional hardness and strength under both ambient and high-temperature conditions, they are widely used for the pre-protection, repair, and manufacturing of components in demanding environments. Key industries served include Automotive, Petroleum (drill heads), Petrochemical, Wood processing, Aerospace, and Nuclear power, where superior resistance to heat, wear, oxidation, and thermal shock is essential.

Cobalt based bare rods
Nickel based bare rods
Iron based bare rods

Specification Table & Chemical composition test value

3. Electrodes

We produce cobalt-based, nickel-based, and iron-based electrodes, with available sizes ranging from 2.40mm to 5.6mm (1/16” to 7/32”). The cladding layer exhibits exceptional performance in high-temperature resistance, scratch resistance, thermal shock resistance, and metal-to-metal wear resistance.

Specification Table

These electrodes are primarily used for the pre-protection, repair, and manufacturing of critical components, including high-temperature/high-pressure valves, valve sleeves, and valve sealing surfaces. Other key applications include shearing tools, guide rolls, roller bit bearings, centrifugal pumps in the petroleum industry, and boiler rotating impellers.

Cobalt based electrodes
Nickel based electrodes
Iron based electrodes

Specification Table

4. Alloy Deformed Welding Wires

Nickel alloys offer exceptional high-temperature strength and superior resistance to wear, corrosion, thermal shock, and oxidation. They also demonstrate robust resistance to aggressive media, including strong acids, oxidizing-reducing compounds, halogens, strong reducing agents, hydrofluoric acid, alkaline fluids, and chloride ions.

The production process involves advanced smelting, slagging, rolling, and drawing/forming. These wires are suitable for a wide range of welding processes, such as GTAW (TIG), GMAW (MIG), SAW (Submerged Arc), and PAW (Plasma Arc). They are widely utilized in the pre-protection, repair, and manufacturing of critical components within the petrochemical, aerospace, and nuclear industries.

Cobalt-alloy welding wires
Nickel-alloy welding wires
Iron-alloy welding wires

Specification Table

5. PTA welding equipments

BZZ WELD PTA equipment is a high-performance surfacing system independently developed by our company, featuring complete independent intellectual property rights.

The system primarily consists of a plasma arc welding torch, a supporting torch assembly, and a precision mechanical device for relative movement against the workpiece. It is integrated with an advanced electrical control system, as well as dedicated water-cooling and gas-circuit systems to stabilize the plasma arc.

Product Capability Range:

Workpiece Geometries: Cylindrical, flat, and shaft-type components.
Workpiece Specifications: * Diameter: $\phi 50$ mm – $1,000$ mm
Length (L): $20$ mm – $1,000$ mm

Customization & Integration:

We provide tailor-made solutions by selecting appropriate transmission devices, including CNC-controlled mobile spray-welding machines and welding oscillators (swings), to meet specific customer requirements.

PTA Equipment Technical Specifications

Parameter	HIELD WELD 1-3(A)	HIELD WELD 1-3(B)	HIELD WELD II
Input Power	3-Phase 380V, 20KVA	3-Phase 380V, 30KVA	3-Phase 380V, 40KVA
Size (mm)	1900×1900×1700	1900×1900×1700	2000×1600×800
Welding Current (A)	200 (100% Duty Cycle)	200 (100% Duty Cycle)	220 (100% Duty Cycle)
Torch Current (A)	200 (100% Duty Cycle)	250 (100% Duty Cycle)	250 (100% Duty Cycle)
Turntable Speed (rpm)	0.1 – 10	0.1 – 3	0.03 – 1
Powder Feeding Rate (g/min)	3 – 30	6 – 60	4 – 40
Cooling Capacity (kcal/h)	4000	6000	6000
Water Pressure (kg/cm²)	4	4	4
Oscillating System
– Swing Width (mm)	–	0 – 38	0 – 38
– Swing Center (mm)	Optional	38	38
– Center Width (mm)	–	16 – 130	16 – 130
Dimensional Adjustment	Included	Included	Included
Argon Gas Flow (L/min)
– Center Gas	1 – 2	1.5 – 2.5	1 – 3
– Powder Feeding Gas	1 – 2	1.5 – 2.5	0.5 – 2.0
– Protective Gas	10 – 15	5 – 20	15 – 20
Workpiece / Part Specs
– Carriage Speed (mm/min)	–	–	Gas Valve C50-100
– Part Diameter (mm)	Gas Valve C25-50	–	Gas Valve C50-100
– Part Length (mm)	Gas Valve C25-50	Gas Valve ≤500	Plate Dia ≤900