The following points should be noted when planting a heavy building:

Misunderstanding 1. Planting with mountain soil:

The mountain base soil is the decaying litter leaves, which have a good effect on soil improvement. When planting heavy buildings, farmers often pull a large amount of mountain soil into the soil, and then plant the heavy tubers, but all the wild heavy buildings have thick mountain foundation soil, and their tubers and roots grow in the mountains. Below the base soil, not in the mountain soil.

Misunderstanding 2, planting time of heavy building:

Farmers planting heavy buildings are planted before the emergence of heavy buildings, that is, using conventional crop planting mode. However, from the analysis of the heavy tubers themselves, this period is the most unsuitable. When the heavy tubers are dug, the Li Peng damage is quite Seriously, at this time, the tuber of the heavy building is mainly composed of the aboveground part of the growth, and the root system is almost in a state of cessation of growth. After emergence, the water transpiration is increased, the root system is imperfect, and eventually the ground part of the heavy building is dehydrated and died.

Misunderstanding 3, heavy building management method:

In the management of heavy buildings, the growers prevent the tubers from suffering from drought, and watered them in a large amount in March. The sufficient water and suitable temperature promoted the emergence of tuber sprouts. During the Ching Ming Festival, a large number of seedlings emerged. In the season, the seedlings are not suitable for air drying, and they die a lot before the rainy season.

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Duplex Stainless Steel

Duplex Stainless Steels Available

Haohua Industrysupplies LDX2101, 2205, Ferralium 255, Zeron 100 and LDX2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.

Duplex Stainless Steel Overview

Duplex Stainless Steels, also referred to as austenitic-ferritic stainless steels, are a family of grades with about equal proportions of ferrite and austenite. These steels have a duplex microstructure which contributes to their high strength and high resistance to stress corrosion cracking. Due to their high content of chromium, nitrogen and molybdenum, duplex steels offer good resistance to local and uniform corrosion. Duplex stainless steels have good weldability.

Today, modern duplex stainless steels can be divided into three groups:
Lean Duplex such as LDX2101
Standard Duplex such as 2205, the work-horse grade accounting for more than 80% of duplex usage
Super Duplex such as Ferralium 255 and Zeron 100 and LDX2507

Of the duplex grades, duplex 2205 is the most widely used. However, the super duplex steels like ZeronÂ® 100 and LDX2507 are excellent for servicing severe corrosive environments, such as offshore and marine applications. Lean duplex 2101 is available as an economic alternative to 300 series stainless steels.

What are the Characteristics of Duplex Stainless Steels ?
Very good resistance to uniform corrosion
Very good resistance to pitting and crevice corrosion
High resistance to stress corrosion cracking and corrosion fatigue
High mechanical strength
Good sulfide stress corrosion resistance
Good abrasion and erosion resistance
Good fatigue resistance high energy absorption
Low thermal expansion
Good weldability

In what Applications are Duplex Stainless SteelsÂ® used ?
Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Desalination plants and seawater systems
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts

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