Production Process:

Raw material preparation: Select appropriate Hastelloy alloy powder or block as raw material to ensure that its composition meets the specified requirements.

Material pretreatment: Raw materials are pretreated, including cleaning, drying and smelting steps to remove impurities and oxides.

Smelting: Heating pretreated raw materials to high temperatures to melt them into a liquid state. In the molten state, the alloy composition can be adjusted to meet specific requirements.

Pouring: The molten alloy is poured into a rod-shaped mold to form the initial shape of the alloy rod.

Hot processing: The initial shape of the alloy rod is hot processed, including hot rolling, hot drawing, hot extrusion and other processes, to further change its shape and size.

Cold processing: After hot processing, the alloy rod is subjected to cold processing, such as cold drawing, cold rolling and other processes, to improve its mechanical properties and dimensional accuracy.

Heat treatment: Heat treatment is performed on the cold-worked alloy rod, including annealing, solution treatment, aging treatment and other steps to adjust its structure and properties.

Surface treatment: Surface treatments such as polishing and pickling are performed on the heat-treated alloy rods to remove scale and contaminants.

Detection and inspection: Conduct various quality inspections on the produced Hastelloy alloy rods, including chemical composition analysis, dimensional inspection, mechanical property testing, metallographic analysis, corrosion resistance testing, etc.

Packaging and storage: Qualified Hastelloy alloy rods are packaged and stored as required to prevent corrosion and mechanical damage.

Quality inspection method:

Chemical composition analysis: Determine the elemental composition of Hastelloy alloy rod through chemical analysis technology. Commonly used methods include spectral analysis (such as photoelectric emission spectrometry, spectroscopy, etc.) and chemical analysis (such as wet chemical analysis, inductively coupled plasma emission spectrometry, etc.).

Dimensional inspection: Measure and inspect the length, diameter, roundness, surface roughness, etc. of Hastelloy alloy rods. Commonly used tools include calipers, micrometers, microscopes, etc.

Metallographic analysis: Observe and analyze the structure of Hastelloy alloy rods through a metallographic microscope, including grain size, grain boundaries, phase content, etc. Metallographic analysis can help evaluate the heat treatment effects and mechanical properties of alloys.

Mechanical property testing: Conduct mechanical property testing on Hastelloy alloy rods, including tensile strength, yield strength, elongation, impact toughness, etc. Commonly used testing methods include tensile testing, impact testing, etc.

Corrosion resistance test: Hastelloy alloy is mainly used in corrosion-resistant applications, so corrosion resistance testing is essential. Commonly used methods include electrochemical corrosion testing, salt spray testing, acid-base corrosion testing, etc.

Other tests: Based on demand, specific quality tests such as heat treatment effect evaluation, hardness testing, ultrasonic testing, and magnetic particle testing can also be performed.