Reasonable forging of cutting-edge materials can break up columnar grains, reduce macrosegregation, transform the as-cast structure into a forged structure, and, under appropriate temperature and stress conditions, weld internal voids to improve the material’s density. After forging, the ingot forms a fibrous structure. Through further rolling, extrusion, and die forging, the forging obtains a rational distribution of fiber flow direction. Forging also helps to control grain size and uniformity, improve the distribution of secondary phases (such as alloy carbides in ledeburitic steels), and achieve deformation strengthening or deformation–phase transformation strengthening of the microstructure.

Scrap metal shearing operates under harsh working conditions, which places high demands on the quality of the shear blades, particularly in terms of strength and toughness. H13 is an alloy tool steel. Because it contains a large amount of alloying elements, it has excellent hardenability. After quenching, a considerable amount of retained austenite often remains in the microstructure. This retained austenite continues to transform into martensite only during the cooling process after tempering, which is known as “secondary quenching.” After the first tempering, the formation of new martensite generates new internal stresses. In addition, some retained austenite may still remain untransformed. Therefore, a second tempering or even a third tempering treatment is required. The tempering temperature is generally between 550–600°C, and the tempering time depends on the furnace load and the effective thickness of the blades.

Double shaft shredder blades are essential for solid waste treatment. They increase processing speed and aid resource recovery in three main ways: Firstly, these blades drive efficient crushing. Solid waste, such as household garbage, industrial waste, and old appliances, varies in shape and hardness. High quality blades with sharp edges and well-designed teeth grip and cut materials, quickly shearing waste into uniform particles. Crushing efficiency rises 20%-30% compared to ordinary blades, shortening cycle times. Secondly, high quality blades ensure consistent resource recovery. Their wear resistance and precision deliver uniform crushing, preventing over- or under-processing. As a result, they provide reliable raw materials for subsequent sorting and recycling, supporting processes like plastic regeneration and metal extraction. Consistent performance helps minimize secondary resource recovery costs.  Finally, this property is the cornerstone for stable operation. Double shaft shredder machines use two parallel rotating shafts with intermeshing blades to cut materials. These shredders often run 24 hours a day. The blades must handle high-impact loads during solid waste cutting. Blades made from high-toughness, wear-resistant materials reduce chipping and equipment faults. This limits downtime, supports continuous operation, and reduces production losses. Choosing the right Double shaft shredder machine blades improves the efficiency of solid waste treatment. It also helps enterprises achieve reduction, harmless treatment, and resource recovery. These blades are indispensable to the waste treatment process.

As the first full moon of the Year of the Horse graces the night sky on this 2026 Lantern Festival, the world is bathed in a warm, festive glow. Tonight, streets are adorned with countless glowing lanterns, each one a beacon of hope and joy. Families gather around steaming bowls of tangyuan, their round shape a perfect symbol of unity and completeness. As you savor the sweet, glutinous treat, may it melt away the chill of winter and fill your heart with the promise of a sweet year ahead. In the spirit of the Horse, may this festival gallop in good fortune and vitality for you. Let the bright flames of the lanterns light up your path, dispelling any darkness and guiding you toward your dreams. Wherever you are, may the light of the full moon and the warmth of human connection be with you. LiCheng wishing you a joyous Lantern Festival—may every day be filled with happiness, and may all your wishes come true!

How to maintain the double shaft shredder blades： Daily Operation and Startup/Shutdown Procedures Before Startup: Ensure the cavity is free of foreign objects, check that the blade is securely fastened and well-lubricated, and confirm that the safety protection is in good condition. For new machines, immediately retighten the blade bolts 1 hour after startup. During operation, ensure materials are fed evenly. Avoid overloading. Do not add hard items such as metal. Monitor for unusual noises. Watch the current and output. Stop the operation immediately if you detect any abnormalities. After stopping, thoroughly clean leftover materials using a brush or compressed air to reach corners. Avoid harsh cleaners at all times. Cleaning and Lubrication Cleaning: Clear materials after each shutdown. Deep-clean the blade chamber and the blade every week. Remove adhered substances to prevent corrosion and damage to the blade edge. Lubrication: Once the blade is cleaned, apply anti-rust oil to prevent corrosion. Bearings, which are the rotating supports that reduce friction within the shredder, should be lubricated with lithium-based grease of NLGI 2 grade (the standard classification for grease thickness and hardness) every 100-500 hours. The reducer, a gearbox that slows the motor's speed to increase torque, should be filled with ISO VG 320 gear oil (an industry-standard viscosity grade) every 2000 hours, with oil temperature maintained at 45-80℃. Apply thread locking adhesive (a chemical that secures threaded fasteners) when tightening bolts. This prevents the bolts from loosening due to vibration or use. Blade Inspection, Grinding, and Replacement Daily Inspection: Check that the blade edge gap (the space between cutting edges) is ≤ 2mm and the bolt torque is within standard limits. If the blade edge becomes dull by more than 1.5mm, repair it promptly. Grinding Specifications: Daily: Clear waste materials. Inspect blade damage and bolts. Listen for abnormal sounds. Check lubrication. Weekly: Deep clean. Sharpen dull blades. Check clearance and parallelism. Lubricate key areas. Monthly: Comprehensive inspection for wear, calibrate clearance, replace failed blades, thoroughly lubricate, and change oil (per schedule) New machine or major overhaul: Tighten blades 1 hour after startup. Complete comprehensive inspections and clearance calibration within 72 hours.

Standardized Installation Procedure for Double Axis Shredder Blades： 1. Safety Precautions   Turn off the power and lock it before starting. Put on cut-proof gloves and safety glasses. Get the needed tools: adjustable wrenches, thickness gauges, and rubber hammers. Clean the blade rod and nearby areas. 2. Installation Protocol   Examine the replacement blades for edge damage. Verify all positioning pins, retaining screws, and shaft threads show no deformation or wear.   Position the blades as outlined in the instructions. Clamp the blades firmly onto the shafts and align them with a uniform tooth-and-groove pattern. Tighten screws evenly to the specified torque (usually 80–120 N·m) using a crisscross pattern.   Gauge the gap with a thickness gauge: select 0.2–0.3 mm for hard items and 0.1–0.2 mm for soft ones. Ensure the gap remains constant; reset it if it exceeds 0.05 mm.   Rotate both rods by hand at least once. The blades must move smoothly and quietly—never stick, scrape, or resist—before proceeding. 3. Operational Validation and Commissioning   Run the machine without any load for three minutes at its usual speed. Watch that it stays steady: there should be no shaking, loud rubbing, or odd movements. Next, cut a sample of material under careful watch. Check that the finished size of the pieces meets the rules (for example, D90 must be less than or equal to the target level); only after this test should the machine be approved for normal work. 4. Critical Safety and Performance Notes   Never place gloved hands near rotating components—even during manual rotation.   Keep electrical power isolated until all fasteners are fully torqued, and you verify final clearance.   If the gap is not correct, blades will wear faster, get too hot, cut poorly, or cause jams in the material feed.

The Spring Festival is a traditional celebration of the Chinese nation. It not only symbolizes reunion and joy, but also embodies wishes for a better future. On this special day, may you and your family share the happiness of being together, filling every corner with laughter and cheer. The chimes of the New Year are the horn of hope, with endless possibilities awaiting us in the year ahead. Let us step forward bravely with beautiful visions for the future, together creating a more brilliant tomorrow. On this festive day, may life be as warm and bright as the spring sun; may your career flourish like the tender buds of spring, full of vitality and growth. Happy Spring Festival and wishing you progress in the New Year!

Dual shaft shredder blade material is a core component in solid waste treatment and resource recovery systems. It critically affects shredding efficiency, service life, operational reliability, and total cost of ownership. Four principal blade materials are widely adopted in industry today. Selection depends on waste composition, processing intensity, and operational needs. SKD11 is a high-carbon, high-chromium cold-work tool steel. It is the most prevalent choice for general-purpose applications. With a hardness of HRC 58–60 and moderate toughness, it reliably handles medium- to low-hardness materials. These include plastics, rubber, paper, and light composites. SKD11 is cost-effective, and heat treatment and machining protocols are well established. Maintenance requirements are low. This material is suitable for small- to medium-scale recycling under standard duty cycles. H13 is a chromium–molybdenum–vanadium hot-work tool steel. Compared to other hot-work tool steels, H13 offers superior thermal stability, high hardenability, and strong resistance to thermal fatigue and cracking. H13 keeps its strength and hardness even at high temperatures. Its wear resistance and toughness are well balanced due to the higher carbon and vanadium content. H13 is recommended for shredding tough solid waste, like metal waste or waste containing metal. NM550 (HBW 550) is an abrasion-resistant structural steel. It combines high toughness (impact energy: 30–40 J) with exceptional wear resistance (roughly HRC 55). Its microstructure lessens the risk of chipping and edge fracture. This increases robustness when handling impurity-heavy waste, such as construction debris, mixed municipal waste, or contaminated wood. NM550 improves fault tolerance and reduces downtime from foreign objects. It is well-suited for variable or poorly sorted feed. Material selection must be tailored to the feedstock and operational parameters. SKD11 is best for consistent, low-abrasion processing. Use DC53 for high-strength, high-cycle needs. Prefer H13 when thermal stress or metal content is high. Choose NM550 for very variable, impurity-rich waste streams. Matching materials to needs optimizes operations and lowers lifecycle costs.