The Advantages of Utilizing Inconel 625 in the Paper Industry

2024-05-23

Firstly, Inconel 625 possesses remarkable corrosion resistance, rendering it impervious to chemical degradation from potent acids and alkalis prevalent in the paper industry. Consequently, it is ideally suited for fabricating apparatus and instruments in corrosive environments.

Subsequently, Inconel 625 displays commendable wear resistance and elevated temperature resistance, retaining its stability and strength even under strenuous high temperature and high pressure conditions. This endows it with the capacity to endure the intense stress and elevated temperatures of machinery such as bearings and drums that operate at high velocities in the paper industry.

Moreover, the machinability of Inconel 625 is exceptionally favorable. It can be effortlessly machined and assembled, thereby reducing production expenses and processing duration while bolstering production efficacy.

To conclude, Inconel 625 holds immense application potential and significant economic worth in the paper industry.

Application of Inconel 625 in Paper Industry

Paper is derived from wood via a sequence of procedures. During this manufacturing journey, the wood undergoes numerous physical and chemical transformations. This necessitates impeccable performance from papermaking equipment. Hereinafter are some typical applications of Inconel 625 in paper production.

Cutting Tools and Knives

Throughout the paper production cycle, the wood is sequentially peeled, sliced, and shredded. All these operations employ knives. While slicing wood, the knives encounter not just high stresses but also generate considerable heat due to friction.

Given its high hardness, robust strength, and wear resistance, Inconel 625 can be employed in the fabrication of cutting tools and knives. Inconel 625 enables these tools to function at high temperatures with outstanding cutting prowess and longevity.

Steam Heater

The chopped wood is amalgamated with an acid solution and conveyed to a steam heater. The steam heater functions akin to a massive pressure cooker. It employs high temperature and pressure to catalyze and blend the wood and acid solution. After several hours, the wood morphs into pulp.

The severe temperature and high pressure milieu in the papermaking process impose rigorous demands on steam heater equipment and pipeline materials. Utilize Inconel 625 to construct high temperature and high pressure resistant equipment and pipelines. This empowers the steam heater to resist the erosion of high temperature and high pressure steam and acidic solution.

Cleaning and Bleaching

Post preparation, the pulp undergoes multiple washes and bleaches. These processes utilize copious amounts of water and bleach, which possess certain oxidizing or corrosive traits.

Inconel 625 exhibits superb corrosion resistance and oxidation resistance. Hence, it can be harnessed to create cleaning and bleaching apparatus.

Dehydration Equipment

Following bleaching, the pulp is dehydrated under the impetus of two rollers. This procedure also calls for materials boasting excellent oxidation resistance and robustness.

Manufacturing the dehydration drum using Inconel 625 ensures its sustained operation over an extended period. Comprising of Inconel 625 material can augment its corrosion resistance and high temperature and high pressure performance.

Inconel alloy 625, a superior alloy comprising of nickel, chromium, and molybdenum, boasts extraordinary corrosion resistance and high temperature strength. Relying on these exceptional characteristics, Inconel 625 exhibits a diverse array of applications across numerous industries, particularly the paper sector.

Throughout the intricate paper creation process, numerous raw materials and apparatus demand substantial resistance to corrosion and extreme temperatures to safeguard the topnotch quality and expedite production efficiency. Given Inconel 625's eminent attributes, it is frequently utilized within the paper realm, offering corporations a dependable selection for their materials.

Inconel 625 Chemical Compositions:

.40 max

.10 max

1.0 max

20.0 - 23.0

5.0 max

.50 max

8.0 - 10.0

3.15 - 4.15

.015 max

.50 max

.40 max

58.0 min

Inconel 625 Mechanical Properties：

PROPERTY	21°C	204 °C	316 °C	427 °C	538 °C	649 °C	760 °C	871 °C
Ultimate Tensile Strength /Mpa	992.9	923.9	910.1	910.1	896.3	820.5	537.8	275.8
0.2% Yield Strength /MPa	579.2	455.1	434.4	420.6	420.6	413.7	406.8	268.9
Elongation %	44	45	42.5	45	48	34	59	117
Coefficient of Thermal Expansion µm/m⁰C	-	13.1	13.3	13.7	14	14.8	15.3	15.8
Thermal Conductivity /kcal/(hr.m.°C)	8.5	10.7	12.2	13.5	15	16.4	17.9	19.6
Modulus of Elasticity MPa x 10⁵	2.07	1.98	1.92	1.86	1.79	1.65	1.59	1.48